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NOTICE This repository contains the public FTC SDK for the SKYSTONE (2019-2020) competition season. If you are looking for the current season's FTC SDK software, please visit the new and permanent home of the public FTC SDK: FtcRobotController repository Welcome! This GitHub repository contains the source code that is used to build an Android app to control a FIRST Tech Challenge competition robot. To use this SDK, download/clone the entire project to your local computer. Getting Started If you are new to robotics or new to the FIRST Tech Challenge, then you should consider reviewing the FTC Blocks Tutorial to get familiar with how to use the control system: FTC Blocks Online Tutorial Even if you are an advanced Java programmer, it is helpful to start with the FTC Blocks tutorial, and then migrate to the OnBot Java Tool or to Android Studio afterwards. Downloading the Project If you are an Android Studio programmer, there are several ways to download this repo. Note that if you use the Blocks or OnBot Java Tool to program your robot, then you do not need to download this repository. If you are a git user, you can clone the most current version of the repository: git clone https://github.com/FIRST-Tech-Challenge/SKYSTONE.git Or, if you prefer, you can use the "Download Zip" button available through the main repository page. Downloading the project as a .ZIP file will keep the size of the download manageable. You can also download the project folder (as a .zip or .tar.gz archive file) from the Downloads subsection of the Releases page for this repository. Once you have downloaded and uncompressed (if needed) your folder, you can use Android Studio to import the folder ("Import project (Eclipse ADT, Gradle, etc.)"). Getting Help User Documentation and Tutorials FIRST maintains online documentation with information and tutorials on how to use the FIRST Tech Challenge software and robot control system. You can access this documentation using the following link: SKYSTONE Online Documentation Note that the online documentation is an "evergreen" document that is constantly being updated and edited. It contains the most current information about the FIRST Tech Challenge software and control system. Javadoc Reference Material The Javadoc reference documentation for the FTC SDK is now available online. Click on the following link to view the FTC SDK Javadoc documentation as a live website: FTC Javadoc Documentation Documentation for the FTC SDK is also included with this repository. There is a subfolder called "doc" which contains several subfolders: The folder "apk" contains the .apk files for the FTC Driver Station and FTC Robot Controller apps. The folder "javadoc" contains the JavaDoc user documentation for the FTC SDK. Online User Forum For technical questions regarding the Control System or the FTC SDK, please visit the FTC Technology forum: FTC Technology Forum Release Information Version 5.5 (20200824-090813) Version 5.5 requires Android Studio 4.0 or later. New features Adds support for calling custom Java classes from Blocks OpModes (fixes SkyStone issue #161). Classes must be in the org.firstinspires.ftc.teamcode package. Methods must be public static and have no more than 21 parameters. Parameters declared as OpMode, LinearOpMode, Telemetry, and HardwareMap are supported and the argument is provided automatically, regardless of the order of the parameters. On the block, the sockets for those parameters are automatically filled in. Parameters declared as char or java.lang.Character will accept any block that returns text and will only use the first character in the text. Parameters declared as boolean or java.lang.Boolean will accept any block that returns boolean. Parameters declared as byte, java.lang.Byte, short, java.lang.Short, int, java.lang.Integer, long, or java.lang.Long, will accept any block that returns a number and will round that value to the nearest whole number. Parameters declared as float, java.lang.Float, double, java.lang.Double will accept any block that returns a number. Adds telemetry API method for setting display format Classic Monospace HTML (certain tags only) Adds blocks support for switching cameras. Adds Blocks support for TensorFlow Object Detection with a custom model. Adds support for uploading a custom TensorFlow Object Detection model in the Manage page, which is especially useful for Blocks and OnBotJava users. Shows new Control Hub blink codes when the WiFi band is switched using the Control Hub's button (only possible on Control Hub OS 1.1.2) Adds new warnings which can be disabled in the Advanced RC Settings Mismatched app versions warning Unnecessary 2.4 GHz WiFi usage warning REV Hub is running outdated firmware (older than version 1.8.2) Adds support for Sony PS4 gamepad, and reworks how gamepads work on the Driver Station Removes preference which sets gamepad type based on driver position. Replaced with menu which allows specifying type for gamepads with unknown VID and PID Attempts to auto-detect gamepad type based on USB VID and PID If gamepad VID and PID is not known, use type specified by user for that VID and PID If gamepad VID and PID is not known AND the user has not specified a type for that VID and PID, an educated guess is made about how to map the gamepad Driver Station will now attempt to automatically recover from a gamepad disconnecting, and re-assign it to the position it was assigned to when it dropped If only one gamepad is assigned and it drops: it can be recovered If two gamepads are assigned, and have different VID/PID signatures, and only one drops: it will be recovered If two gamepads are assigned, and have different VID/PID signatures, and BOTH drop: both will be recovered If two gamepads are assigned, and have the same VID/PID signatures, and only one drops: it will be recovered If two gamepads are assigned, and have the same VID/PID signatures, and BOTH drop: neither will be recovered, because of the ambiguity of the gamepads when they re-appear on the USB bus. There is currently one known edge case: if there are two gamepads with the same VID/PID signature plugged in, but only one is assigned, and they BOTH drop, it's a 50-50 chance of which one will be chosen for automatic recovery to the assigned position: it is determined by whichever one is re-enumerated first by the USB bus controller. Adds landscape user interface to Driver Station New feature: practice timer with audio cues New feature (Control Hub only): wireless network connection strength indicator (0-5 bars) New feature (Control Hub only): tapping on the ping/channel display will switch to an alternate display showing radio RX dBm and link speed (tap again to switch back) The layout will NOT autorotate. You can switch the layout from the Driver Station's settings menu. Breaking changes Removes support for Android versions 4.4 through 5.1 (KitKat and Lollipop). The minSdkVersion is now 23. Removes the deprecated LinearOpMode methods waitOneFullHardwareCycle() and waitForNextHardwareCycle() Enhancements Handles RS485 address of Control Hub automatically The Control Hub is automatically given a reserved address Existing configuration files will continue to work All addresses in the range of 1-10 are still available for Expansion Hubs The Control Hub light will now normally be solid green, without blinking to indicate the address The Control Hub will not be shown on the Expansion Hub Address Change settings page Improves REV Hub firmware updater The user can now choose between all available firmware update files Version 1.8.2 of the REV Hub firmware is bundled into the Robot Controller app. Text was added to clarify that Expansion Hubs can only be updated via USB. Firmware update speed was reduced to improve reliability Allows REV Hub firmware to be updated directly from the Manage webpage Improves log viewer on Robot Controller Horizontal scrolling support (no longer word wrapped) Supports pinch-to-zoom Uses a monospaced font Error messages are highlighted New color scheme Attempts to force-stop a runaway/stuck OpMode without restarting the entire app Not all types of runaway conditions are stoppable, but if the user code attempts to talk to hardware during the runaway, the system should be able to capture it. Makes various tweaks to the Self Inspect screen Renames "OS version" entry to "Android version" Renames "WiFi Direct Name" to "WiFi Name" Adds Control Hub OS version, when viewing the report of a Control Hub Hides the airplane mode entry, when viewing the report of a Control Hub Removes check for ZTE Speed Channel Changer Shows firmware version for all Expansion and Control Hubs Reworks network settings portion of Manage page All network settings are now applied with a single click The WiFi Direct channel of phone-based Robot Controllers can now be changed from the Manage page WiFi channels are filtered by band (2.4 vs 5 GHz) and whether they overlap with other channels The current WiFi channel is pre-selected on phone-based Robot Controllers, and Control Hubs running OS 1.1.2 or later. On Control Hubs running OS 1.1.2 or later, you can choose to have the system automatically select a channel on the 5 GHz band Improves OnBotJava New light and dark themes replace the old themes (chaos, github, chrome,...) the new default theme is light and will be used when you first update to this version OnBotJava now has a tabbed editor Read-only offline mode Improves function of "exit" menu item on Robot Controller and Driver Station Now guaranteed to be fully stopped and unloaded from memory Shows a warning message if a LinearOpMode exists prematurely due to failure to monitor for the start condition Improves error message shown when the Driver Station and Robot Controller are incompatible with each other Driver Station OpMode Control Panel now disabled while a Restart Robot is in progress Disables advanced settings related to WiFi direct when the Robot Controller is a Control Hub. Tint phone battery icons on Driver Station when low/critical. Uses names "Control Hub Portal" and "Control Hub" (when appropriate) in new configuration files Improve I2C read performance Very large improvement on Control Hub; up to ~2x faster with small (e.g. 6 byte) reads Not as apparent on Expansion Hubs connected to a phone Update/refresh build infrastructure Update to 'androidx' support library from 'com.android.support:appcompat', which is end-of-life Update targetSdkVersion and compileSdkVersion to 28 Update Android Studio's Android plugin to latest Fix reported build timestamp in 'About' screen Add sample illustrating manual webcam use: ConceptWebcam Bug fixes Fixes SkyStone issue #248 Fixes SkyStone issue #232 and modifies bulk caching semantics to allow for cache-preserving MANUAL/AUTO transitions. Improves performance when REV 2M distance sensor is unplugged Improves readability of Toast messages on certain devices Allows a Driver Station to connect to a Robot Controller after another has disconnected Improves generation of fake serial numbers for UVC cameras which do not provide a real serial number Previously some devices would assign such cameras a serial of 0:0 and fail to open and start streaming Fixes ftc_app issue #638. Fixes a slew of bugs with the Vuforia camera monitor including: Fixes bug where preview could be displayed with a wonky aspect ratio Fixes bug where preview could be cut off in landscape Fixes bug where preview got totally messed up when rotating phone Fixes bug where crosshair could drift off target when using webcams Fixes issue in UVC driver on some devices (ftc_app 681) if streaming was started/stopped multiple times in a row Issue manifested as kernel panic on devices which do not have this kernel patch. On affected devices which do have the patch, the issue was manifest as simply a failure to start streaming. The Tech Team believes that the root cause of the issue is a bug in the Linux kernel XHCI driver. A workaround was implemented in the SDK UVC driver. Fixes bug in UVC driver where often half the frames from the camera would be dropped (e.g. only 15FPS delivered during a streaming session configured for 30FPS). Fixes issue where TensorFlow Object Detection would show results whose confidence was lower than the minimum confidence parameter. Fixes a potential exploitation issue of CVE-2019-11358 in OnBotJava Fixes changing the address of an Expansion Hub with additional Expansion Hubs connected to it Preserves the Control Hub's network connection when "Restart Robot" is selected Fixes issue where device scans would fail while the Robot was restarting Fix RenderScript usage Use androidx.renderscript variant: increased compatibility Use RenderScript in Java mode, not native: simplifies build Fixes webcam-frame-to-bitmap conversion problem: alpha channel wasn't being initialized, only R, G, & B Fixes possible arithmetic overflow in Deadline Fixes deadlock in Vuforia webcam support which could cause 5-second delays when stopping OpMode Version 5.4 (20200108-101156) Fixes SkyStone issue #88 Adds an inspection item that notes when a robot controller (Control Hub) is using the factory default password. Fixes SkyStone issue #61 Fixes SkyStone issue #142 Fixes ftc_app issue #417 by adding more current and voltage monitoring capabilities for REV Hubs. Fixes a crash sometimes caused by OnBotJava activity Improves OnBotJava autosave functionality ftc_app #738 Fixes system responsiveness issue when an Expansion Hub is disconnected Fixes issue where IMU initialization could prevent Op Modes from stopping Fixes issue where AndroidTextToSpeech.speak() would fail if it was called too early Adds telemetry.speak() methods and blocks, which cause the Driver Station (if also updated) to speak text Adds and improves Expansion Hub-related warnings Improves Expansion Hub low battery warning Displays the warning immediately after the hub reports it Specifies whether the condition is current or occurred temporarily during an OpMode run Displays which hubs reported low battery Displays warning when hub loses and regains power during an OpMode run Fixes the hub's LED pattern after this condition Displays warning when Expansion Hub is not responding to commands Specifies whether the condition is current or occurred temporarily during an OpMode run Clarifies warning when Expansion Hub is not present at startup Specifies that this condition requires a Robot Restart before the hub can be used. The hub light will now accurately reflect this state Improves logging and reduces log spam during these conditions Syncs the Control Hub time and timezone to a connected web browser programming the robot, if a Driver Station is not available. Adds bulk read functionality for REV Hubs A bulk caching mode must be set at the Hub level with LynxModule#setBulkCachingMode(). This applies to all relevant SDK hardware classes that reference that Hub. The following following Hub bulk caching modes are available: BulkCachingMode.OFF (default): All hardware calls operate as usual. Bulk data can read through LynxModule#getBulkData() and processed manually. BulkCachingMode.AUTO: Applicable hardware calls are served from a bulk read cache that is cleared/refreshed automatically to ensure identical commands don't hit the same cache. The cache can also be cleared manually with LynxModule#clearBulkCache(), although this is not recommended. (advanced users) BulkCachingMode.MANUAL: Same as BulkCachingMode.AUTO except the cache is never cleared automatically. To avoid getting stale data, the cache must be manually cleared at the beginning of each loop body or as the user deems appropriate. Removes PIDF Annotation values added in Rev 5.3 (to AndyMark, goBILDA and TETRIX motor configurations). The new motor types will still be available but their Default control behavior will revert back to Rev 5.2 Adds new ConceptMotorBulkRead sample Opmode to demonstrate and compare Motor Bulk-Read modes for reducing I/O latencies. Version 5.3 (20191004-112306) Fixes external USB/UVC webcam support Makes various bugfixes and improvements to Blocks page, including but not limited to: Many visual tweaks Browser zoom and window resize behave better Resizing the Java preview pane works better and more consistently across browsers The Java preview pane consistently gets scrollbars when needed The Java preview pane is hidden by default on phones Internet Explorer 11 should work Large dropdown lists display properly on lower res screens Disabled buttons are now visually identifiable as disabled A warning is shown if a user selects a TFOD sample, but their device is not compatible Warning messages in a Blocks op mode are now visible by default. Adds goBILDA 5201 and 5202 motors to Robot Configurator Adds PIDF Annotation values to AndyMark, goBILDA and TETRIX motor configurations. This has the effect of causing the RUN_USING_ENCODERS and RUN_TO_POSITION modes to use PIDF vs PID closed loop control on these motors. This should provide more responsive, yet stable, speed control. PIDF adds Feedforward control to the basic PID control loop. Feedforward is useful when controlling a motor's speed because it "anticipates" how much the control voltage must change to achieve a new speed set-point, rather than requiring the integrated error to change sufficiently. The PIDF values were chosen to provide responsive, yet stable, speed control on a lightly loaded motor. The more heavily a motor is loaded (drag or friction), the more noticable the PIDF improvement will be. Fixes startup crash on Android 10 Fixes ftc_app issue #712 (thanks to FROGbots-4634) Fixes ftc_app issue #542 Allows "A" and lowercase letters when naming device through RC and DS apps. Version 5.2 (20190905-083277) Fixes extra-wide margins on settings activities, and placement of the new configuration button Adds Skystone Vuforia image target data. Includes sample Skystone Vuforia Navigation op modes (Java). Includes sample Skystone Vuforia Navigation op modes (Blocks). Adds TensorFlow inference model (.tflite) for Skystone game elements. Includes sample Skystone TensorFlow op modes (Java). Includes sample Skystone TensorFlow op modes (Blocks). Removes older (season-specific) sample op modes. Includes 64-bit support (to comply with Google Play requirements). Protects against Stuck OpModes when a Restart Robot is requested. (Thanks to FROGbots-4634) (ftc_app issue #709) Blocks related changes: Fixes bug with blocks generated code when hardware device name is a java or javascript reserved word. Shows generated java code for blocks, even when hardware items are missing from the active configuration. Displays warning icon when outdated Vuforia and TensorFlow blocks are used (SkyStone issue #27) Version 5.1 (20190820-222104) Defines default PIDF parameters for the following motors: REV Core Hex Motor REV 20:1 HD Hex Motor REV 40:1 HD Hex Motor Adds back button when running on a device without a system back button (such as a Control Hub) Allows a REV Control Hub to update the firmware on a REV Expansion Hub via USB Fixes SkyStone issue #9 Fixes ftc_app issue #715 Prevents extra DS User clicks by filtering based on current state. Prevents incorrect DS UI state changes when receiving new OpMode list from RC Adds support for REV Color Sensor V3 Adds a manual-refresh DS Camera Stream for remotely viewing RC camera frames. To show the stream on the DS, initialize but do not run a stream-enabled opmode, select the Camera Stream option in the DS menu, and tap the image to refresh. This feature is automatically enabled when using Vuforia or TFOD—no additional RC configuration is required for typical use cases. To hide the stream, select the same menu item again. Note that gamepads are disabled and the selected opmode cannot be started while the stream is open as a safety precaution. To use custom streams, consult the API docs for CameraStreamServer#setSource and CameraStreamSource. Adds many Star Wars sounds to RobotController resources. Added SKYSTONE Sounds Chooser Sample Program. Switches out startup, connect chimes, and error/warning sounds for Star Wars sounds Updates OnBot Java to use a WebSocket for communication with the robot The OnBot Java page no longer has to do a full refresh when a user switches from editing one file to another Known issues: Camera Stream The Vuforia camera stream inherits the issues present in the phone preview (namely ftc_app issue #574). This problem does not affect the TFOD camera stream even though it receives frames from Vuforia. The orientation of the stream frames may not always match the phone preview. For now, these frames may be rotated manually via a custom CameraStreamSource if desired. OnBotJava Browser back button may not always work correctly It's possible for a build to be queued, but not started. The OnBot Java build console will display a warning if this occurs. A user might not realize they are editing a different file if the user inadvertently switches from one file to another since this switch is now seamless. The name of the currently open file is displayed in the browser tab. Version 5.0 (built on 19.06.14) Support for the REV Robotics Control Hub. Adds a Java preview pane to the Blocks editor. Adds a new offline export feature to the Blocks editor. Display wifi channel in Network circle on Driver Station. Adds calibration for Logitech C270 Updates build tooling and target SDK. Compliance with Google's permissions infrastructure (Required after build tooling update). Keep Alives to mitigate the Motorola wifi scanning problem. Telemetry substitute no longer necessary. Improves Vuforia error reporting. Fixes ftctechnh/ftc_app issues 621, 713. Miscellaneous bug fixes and improvements. Version 4.3 (built on 18.10.31) Includes missing TensorFlow-related libraries and files. Version 4.2 (built on 18.10.30) Includes fix to avoid deadlock situation with WatchdogMonitor which could result in USB communication errors. Comm error appeared to require that user disconnect USB cable and restart the Robot Controller app to recover. robotControllerLog.txt would have error messages that included the words "E RobotCore: lynx xmit lock: #### abandoning lock:" Includes fix to correctly list the parent module address for a REV Robotics Expansion Hub in a configuration (.xml) file. Bug in versions 4.0 and 4.1 would incorrect list the address module for a parent REV Robotics device as "1". If the parent module had a higher address value than the daisy-chained module, then this bug would prevent the Robot Controller from communicating with the downstream Expansion Hub. Added requirement for ACCESS_COARSE_LOCATION to allow a Driver Station running Android Oreo to scan for Wi-Fi Direct devices. Added google() repo to build.gradle because aapt2 must be downloaded from the google() repository beginning with version 3.2 of the Android Gradle Plugin. Important Note: Android Studio users will need to be connected to the Internet the first time build the ftc_app project. Internet connectivity is required for the first build so the appropriate files can be downloaded from the Google repository. Users should not need to be connected to the Internet for subsequent builds. This should also fix buid issue where Android Studio would complain that it "Could not find com.android.tools.lint:lint-gradle:26.1.4" (or similar). Added support for REV Spark Mini motor controller as part of the configuration menu for a servo/PWM port on the REV Expansion Hub. Provide examples for playing audio files in an Op Mode. Block Development Tool Changes Includes a fix for a problem with the Velocity blocks that were reported in the FTC Technology forum (Blocks Programming subforum). Change the "Save completed successfully." message to a white color so it will contrast with a green background. Fixed the "Download image" feature so it will work if there are text blocks in the op mode. Introduce support for Google's TensorFlow Lite technology for object detetion for 2018-2019 game. TensorFlow lite can recognize Gold Mineral and Silver Mineral from 2018-2019 game. Example Java and Block op modes are included to show how to determine the relative position of the gold block (left, center, right). Version 4.1 (released on 18.09.24) Changes include: Fix to prevent crash when deprecated configuration annotations are used. Change to allow FTC Robot Controller APK to be auto-updated using FIRST Global Control Hub update scripts. Removed samples for non supported / non legal hardware. Improvements to Telemetry.addData block with "text" socket. Updated Blocks sample op mode list to include Rover Ruckus Vuforia example. Update SDK library version number. Version 4.0 (released on 18.09.12) Changes include: Initial support for UVC compatible cameras If UVC camera has a unique serial number, RC will detect and enumerate by serial number. If UVC camera lacks a unique serial number, RC will only support one camera of that type connected. Calibration settings for a few cameras are included (see TeamCode/src/main/res/xml/teamwebcamcalibrations.xml for details). User can upload calibration files from Program and Manage web interface. UVC cameras seem to draw a fair amount of electrical current from the USB bus. This does not appear to present any problems for the REV Robotics Control Hub. This does seem to create stability problems when using some cameras with an Android phone-based Robot Controller. FTC Tech Team is investigating options to mitigate this issue with the phone-based Robot Controllers. Updated sample Vuforia Navigation and VuMark Op Modes to demonstrate how to use an internal phone-based camera and an external UVC webcam. Support for improved motor control. REV Robotics Expansion Hub firmware 1.8 and greater will support a feed forward mechanism for closed loop motor control. FTC SDK has been modified to support PIDF coefficients (proportional, integral, derivative, and feed forward). FTC Blocks development tool modified to include PIDF programming blocks. Deprecated older PID-related methods and variables. REV's 1.8.x PIDF-related changes provide a more linear and accurate way to control a motor. Wireless Added 5GHz support for wireless channel changing for those devices that support it. Tested with Moto G5 and E4 phones. Also tested with other (currently non-approved) phones such as Samsung Galaxy S8. Improved Expansion Hub firmware update support in Robot Controller app Changes to make the system more robust during the firmware update process (when performed through Robot Controller app). User no longer has to disconnect a downstream daisy-chained Expansion Hub when updating an Expansion Hub's firmware. If user is updating an Expansion Hub's firmware through a USB connection, he/she does not have to disconnect RS485 connection to other Expansion Hubs. The user still must use a USB connection to update an Expansion Hub's firmware. The user cannot update the Expansion Hub firmware for a downstream device that is daisy chained through an RS485 connection. If an Expansion Hub accidentally gets "bricked" the Robot Controller app is now more likely to recognize the Hub when it scans the USB bus. Robot Controller app should be able to detect an Expansion Hub, even if it accidentally was bricked in a previous update attempt. Robot Controller app should be able to install the firmware onto the Hub, even if if accidentally was bricked in a previous update attempt. Resiliency FTC software can detect and enable an FTDI reset feature that is available with REV Robotics v1.8 Expansion Hub firmware and greater. When enabled, the Expansion Hub can detect if it hasn't communicated with the Robot Controller over the FTDI (USB) connection. If the Hub hasn't heard from the Robot Controller in a while, it will reset the FTDI connection. This action helps system recover from some ESD-induced disruptions. Various fixes to improve reliability of FTC software. Blocks Fixed errors with string and list indices in blocks export to java. Support for USB connected UVC webcams. Refactored optimized Blocks Vuforia code to support Rover Ruckus image targets. Added programming blocks to support PIDF (proportional, integral, derivative and feed forward) motor control. Added formatting options (under Telemetry and Miscellaneous categories) so user can set how many decimal places to display a numerical value. Support to play audio files (which are uploaded through Blocks web interface) on Driver Station in addition to the Robot Controller. Fixed bug with Download Image of Blocks feature. Support for REV Robotics Blinkin LED Controller. Support for REV Robotics 2m Distance Sensor. Added support for a REV Touch Sensor (no longer have to configure as a generic digital device). Added blocks for DcMotorEx methods. These are enhanced methods that you can use when supported by the motor controller hardware. The REV Robotics Expansion Hub supports these enhanced methods. Enhanced methods include methods to get/set motor velocity (in encoder pulses per second), get/set PIDF coefficients, etc.. Modest Improvements in Logging Decrease frequency of battery checker voltage statements. Removed non-FTC related log statements (wherever possible). Introduced a "Match Logging" feature. Under "Settings" a user can enable/disable this feature (it's disabled by default). If enabled, user provides a "Match Number" through the Driver Station user interface (top of the screen). The Match Number is used to create a log file specifically with log statements from that particular Op Mode run. Match log files are stored in /sdcard/FIRST/matlogs on the Robot Controller. Once an op mode run is complete, the Match Number is cleared. This is a convenient way to create a separate match log with statements only related to a specific op mode run. New Devices Support for REV Robotics Blinkin LED Controller. Support for REV Robotics 2m Distance Sensor. Added configuration option for REV 20:1 HD Hex Motor. Added support for a REV Touch Sensor (no longer have to configure as a generic digital device). Miscellaneous Fixed some errors in the definitions for acceleration and velocity in our javadoc documentation. Added ability to play audio files on Driver Station When user is configuring an Expansion Hub, the LED on the Expansion Hub will change blink pattern (purple-cyan) to indicate which Hub is currently being configured. Renamed I2cSensorType to I2cDeviceType. Added an external sample Op Mode that demonstrates localization using 2018-2019 (Rover Ruckus presented by QualComm) Vuforia targets. Added an external sample Op Mode that demonstrates how to use the REV Robotics 2m Laser Distance Sensor. Added an external sample Op Mode that demonstrates how to use the REV Robotics Blinkin LED Controller. Re-categorized external Java sample Op Modes to "TeleOp" instead of "Autonomous". Known issues: Initial support for UVC compatible cameras UVC cameras seem to draw significant amount of current from the USB bus. This does not appear to present any problems for the REV Robotics Control Hub. This does seem to create stability problems when using some cameras with an Android phone-based Robot Controller. FTC Tech Team is investigating options to mitigate this issue with the phone-based Robot Controllers. There might be a possible deadlock which causes the RC to become unresponsive when using a UVC webcam with a Nougat Android Robot Controller. Wireless When user selects a wireless channel, this channel does not necessarily persist if the phone is power cycled. Tech Team is hoping to eventually address this issue in a future release. Issue has been present since apps were introduced (i.e., it is not new with the v4.0 release). Wireless channel is not currently displayed for WiFi Direct connections. Miscellaneous The blink indication feature that shows which Expansion Hub is currently being configured does not work for a newly created configuration file. User has to first save a newly created configuration file and then close and re-edit the file in order for blink indicator to work. Version 3.6 (built on 17.12.18) Changes include: Blocks Changes Uses updated Google Blockly software to allow users to edit their op modes on Apple iOS devices (including iPad and iPhone). Improvement in Blocks tool to handle corrupt op mode files. Autonomous op modes should no longer get switched back to tele-op after re-opening them to be edited. The system can now detect type mismatches during runtime and alert the user with a message on the Driver Station. Updated javadoc documentation for setPower() method to reflect correct range of values (-1 to +1). Modified VuforiaLocalizerImpl to allow for user rendering of frames Added a user-overrideable onRenderFrame() method which gets called by the class's renderFrame() method. Version 3.5 (built on 17.10.30) Changes with version 3.5 include: Introduced a fix to prevent random op mode stops, which can occur after the Robot Controller app has been paused and then resumed (for example, when a user temporarily turns off the display of the Robot Controller phone, and then turns the screen back on). Introduced a fix to prevent random op mode stops, which were previously caused by random peer disconnect events on the Driver Station. Fixes issue where log files would be closed on pause of the RC or DS, but not re-opened upon resume. Fixes issue with battery handler (voltage) start/stop race. Fixes issue where Android Studio generated op modes would disappear from available list in certain situations. Fixes problem where OnBot Java would not build on REV Robotics Control Hub. Fixes problem where OnBot Java would not build if the date and time on the Robot Controller device was "rewound" (set to an earlier date/time). Improved error message on OnBot Java that occurs when renaming a file fails. Removed unneeded resources from android.jar binaries used by OnBot Java to reduce final size of Robot Controller app. Added MR_ANALOG_TOUCH_SENSOR block to Blocks Programming Tool. Version 3.4 (built on 17.09.06) Changes with version 3.4 include: Added telemetry.update() statement for BlankLinearOpMode template. Renamed sample Block op modes to be more consistent with Java samples. Added some additional sample Block op modes. Reworded OnBot Java readme slightly. Version 3.3 (built on 17.09.04) This version of the software includes improves for the FTC Blocks Programming Tool and the OnBot Java Programming Tool. Changes with verion 3.3 include: Android Studio ftc_app project has been updated to use Gradle Plugin 2.3.3. Android Studio ftc_app project is already using gradle 3.5 distribution. Robot Controller log has been renamed to /sdcard/RobotControllerLog.txt (note that this change was actually introduced w/ v3.2). Improvements in I2C reliability. Optimized I2C read for REV Expansion Hub, with v1.7 firmware or greater. Updated all external/samples (available through OnBot and in Android project folder). Vuforia Added support for VuMarks that will be used for the 2017-2018 season game. Blocks Update to latest Google Blockly release. Sample op modes can be selected as a template when creating new op mode. Fixed bug where the blocks would disappear temporarily when mouse button is held down. Added blocks for Range.clip and Range.scale. User can now disable/enable Block op modes. Fix to prevent occasional Blocks deadlock. OnBot Java Significant improvements with autocomplete function for OnBot Java editor. Sample op modes can be selected as a template when creating new op mode. Fixes and changes to complete hardware setup feature. Updated (and more useful) onBot welcome message. Known issues: Android Studio After updating to the new v3.3 Android Studio project folder, if you get error messages indicating "InvalidVirtualFileAccessException" then you might need to do a File->Invalidate Caches / Restart to clear the error. OnBot Java Sometimes when you push the build button to build all op modes, the RC returns an error message that the build failed. If you press the build button a second time, the build typically suceeds. Version 3.2 (built on 17.08.02) This version of the software introduces the "OnBot Java" Development Tool. Similar to the FTC Blocks Development Tool, the FTC OnBot Java Development Tool allows a user to create, edit and build op modes dynamically using only a Javascript-enabled web browser. The OnBot Java Development Tool is an integrated development environment (IDE) that is served up by the Robot Controller. Op modes are created and edited using a Javascript-enabled browser (Google Chromse is recommended). Op modes are saved on the Robot Controller Android device directly. The OnBot Java Development Tool provides a Java programming environment that does NOT need Android Studio. Changes with version 3.2 include: Enhanced web-based development tools Introduction of OnBot Java Development Tool. Web-based programming and management features are "always on" (user no longer needs to put Robot Controller into programming mode). Web-based management interface (where user can change Robot Controller name and also easily download Robot Controller log file). OnBot Java, Blocks and Management features available from web based interface. Blocks Programming Development Tool: Changed "LynxI2cColorRangeSensor" block to "REV Color/range sensor" block. Fixed tooltip for ColorSensor.isLightOn block. Added blocks for ColorSensor.getNormalizedColors and LynxI2cColorRangeSensor.getNormalizedColors. Added example op modes for digital touch sensor and REV Robotics Color Distance sensor. User selectable color themes. Includes many minor enhancements and fixes (too numerous to list). Known issues: Auto complete function is incomplete and does not support the following (for now): Access via this keyword Access via super keyword Members of the super cloass, not overridden by the class Any methods provided in the current class Inner classes Can't handle casted objects Any objects coming from an parenthetically enclosed expression Version 3.10 (built on 17.05.09) This version of the software provides support for the REV Robotics Expansion Hub. This version also includes improvements in the USB communication layer in an effort to enhance system resiliency. If you were using a 2.x version of the software previously, updating to version 3.1 requires that you also update your Driver Station software in addition to updating the Robot Controller software. Also note that in version 3.10 software, the setMaxSpeed and getMaxSpeed methods are no longer available (not deprecated, they have been removed from the SDK). Also note that the the new 3.x software incorporates motor profiles that a user can select as he/she configures the robot. Changes include: Blocks changes Added VuforiaTrackableDefaultListener.getPose and Vuforia.trackPose blocks. Added optimized blocks support for Vuforia extended tracking. Added atan2 block to the math category. Added useCompetitionFieldTargetLocations parameter to Vuforia.initialize block. If set to false, the target locations are placed at (0,0,0) with target orientation as specified in https://github.com/gearsincorg/FTCVuforiaDemo/blob/master/Robot_Navigation.java tutorial op mode. Incorporates additional improvements to USB comm layer to improve system resiliency (to recover from a greater number of communication disruptions). Additional Notes Regarding Version 3.00 (built on 17.04.13) In addition to the release changes listed below (see section labeled "Version 3.00 (built on 17.04.013)"), version 3.00 has the following important changes: Version 3.00 software uses a new version of the FTC Robocol (robot protocol). If you upgrade to v3.0 on the Robot Controller and/or Android Studio side, you must also upgrade the Driver Station software to match the new Robocol. Version 3.00 software removes the setMaxSpeed and getMaxSpeed methods from the DcMotor class. If you have an op mode that formerly used these methods, you will need to remove the references/calls to these methods. Instead, v3.0 provides the max speed information through the use of motor profiles that are selected by the user during robot configuration. Version 3.00 software currently does not have a mechanism to disable extra i2c sensors. We hope to re-introduce this function with a release in the near future. Version 3.00 (built on 17.04.13) *** Use this version of the software at YOUR OWN RISK!!! *** This software is being released as an "alpha" version. Use this version at your own risk! This pre-release software contains SIGNIFICANT changes, including changes to the Wi-Fi Direct pairing mechanism, rewrites of the I2C sensor classes, changes to the USB/FTDI layer, and the introduction of support for the REV Robotics Expansion Hub and the REV Robotics color-range-light sensor. These changes were implemented to improve the reliability and resiliency of the FTC control system. Please note, however, that version 3.00 is considered "alpha" code. This code is being released so that the FIRST community will have an opportunity to test the new REV Expansion Hub electronics module when it becomes available in May. The developers do not recommend using this code for critical applications (i.e., competition use). *** Use this version of the software at YOUR OWN RISK!!! *** Changes include: Major rework of sensor-related infrastructure. Includes rewriting sensor classes to implement synchronous I2C communication. Fix to reset Autonomous timer back to 30 seconds. Implementation of specific motor profiles for approved 12V motors (includes Tetrix, AndyMark, Matrix and REV models). Modest improvements to enhance Wi-Fi P2P pairing. Fixes telemetry log addition race. Publishes all the sources (not just a select few). Includes Block programming improvements Addition of optimized Vuforia blocks. Auto scrollbar to projects and sounds pages. Fixed blocks paste bug. Blocks execute after while-opModeIsActive loop (to allow for cleanup before exiting op mode). Added gyro integratedZValue block. Fixes bug with projects page for Firefox browser. Added IsSpeaking block to AndroidTextToSpeech. Implements support for the REV Robotics Expansion Hub Implements support for integral REV IMU (physically installed on I2C bus 0, uses same Bosch BNO055 9 axis absolute orientation sensor as Adafruit 9DOF abs orientation sensor). - Implements support for REV color/range/light sensor. Provides support to update Expansion Hub firmware through FTC SDK. Detects REV firmware version and records in log file. Includes support for REV Control Hub (note that the REV Control Hub is not yet approved for FTC use). Implements FTC Blocks programming support for REV Expansion Hub and sensor hardware. Detects and alerts when I2C device disconnect. Version 2.62 (built on 17.01.07) Added null pointer check before calling modeToByte() in finishModeSwitchIfNecessary method for ModernRoboticsUsbDcMotorController class. Changes to enhance Modern Robotics USB protocol robustness. Version 2.61 (released on 16.12.19) Blocks Programming mode changes: Fix to correct issue when an exception was thrown because an OpticalDistanceSensor object appears twice in the hardware map (the second time as a LightSensor). Version 2.6 (released on 16.12.16) Fixes for Gyro class: Improve (decrease) sensor refresh latency. fix isCalibrating issues. Blocks Programming mode changes: Blocks now ignores a device in the configuration xml if the name is empty. Other devices work in configuration work fine. Version 2.5 (internal release on released on 16.12.13) Blocks Programming mode changes: Added blocks support for AdafruitBNO055IMU. Added Download Op Mode button to FtcBocks.html. Added support for copying blocks in one OpMode and pasting them in an other OpMode. The clipboard content is stored on the phone, so the programming mode server must be running. Modified Utilities section of the toolbox. In Programming Mode, display information about the active connections. Fixed paste location when workspace has been scrolled. Added blocks support for the android Accelerometer. Fixed issue where Blocks Upload Op Mode truncated name at first dot. Added blocks support for Android SoundPool. Added type safety to blocks for Acceleration. Added type safety to blocks for AdafruitBNO055IMU.Parameters. Added type safety to blocks for AnalogInput. Added type safety to blocks for AngularVelocity. Added type safety to blocks for Color. Added type safety to blocks for ColorSensor. Added type safety to blocks for CompassSensor. Added type safety to blocks for CRServo. Added type safety to blocks for DigitalChannel. Added type safety to blocks for ElapsedTime. Added type safety to blocks for Gamepad. Added type safety to blocks for GyroSensor. Added type safety to blocks for IrSeekerSensor. Added type safety to blocks for LED. Added type safety to blocks for LightSensor. Added type safety to blocks for LinearOpMode. Added type safety to blocks for MagneticFlux. Added type safety to blocks for MatrixF. Added type safety to blocks for MrI2cCompassSensor. Added type safety to blocks for MrI2cRangeSensor. Added type safety to blocks for OpticalDistanceSensor. Added type safety to blocks for Orientation. Added type safety to blocks for Position. Added type safety to blocks for Quaternion. Added type safety to blocks for Servo. Added type safety to blocks for ServoController. Added type safety to blocks for Telemetry. Added type safety to blocks for Temperature. Added type safety to blocks for TouchSensor. Added type safety to blocks for UltrasonicSensor. Added type safety to blocks for VectorF. Added type safety to blocks for Velocity. Added type safety to blocks for VoltageSensor. Added type safety to blocks for VuforiaLocalizer.Parameters. Added type safety to blocks for VuforiaTrackable. Added type safety to blocks for VuforiaTrackables. Added type safety to blocks for enums in AdafruitBNO055IMU.Parameters. Added type safety to blocks for AndroidAccelerometer, AndroidGyroscope, AndroidOrientation, and AndroidTextToSpeech. Version 2.4 (released on 16.11.13) Fix to avoid crashing for nonexistent resources. Blocks Programming mode changes: Added blocks to support OpenGLMatrix, MatrixF, and VectorF. Added blocks to support AngleUnit, AxesOrder, AxesReference, CameraDirection, CameraMonitorFeedback, DistanceUnit, and TempUnit. Added blocks to support Acceleration. Added blocks to support LinearOpMode.getRuntime. Added blocks to support MagneticFlux and Position. Fixed typos. Made blocks for ElapsedTime more consistent with other objects. Added blocks to support Quaternion, Velocity, Orientation, AngularVelocity. Added blocks to support VuforiaTrackables, VuforiaTrackable, VuforiaLocalizer, VuforiaTrackableDefaultListener. Fixed a few blocks. Added type checking to new blocks. Updated to latest blockly. Added default variable blocks to navigation and matrix blocks. Fixed toolbox entry for openGLMatrix_rotation_withAxesArgs. When user downloads Blocks-generated op mode, only the .blk file is downloaded. When user uploads Blocks-generated op mode (.blk file), Javascript code is auto generated. Added DbgLog support. Added logging when a blocks file is read/written. Fixed bug to properly render blocks even if missing devices from configuration file. Added support for additional characters (not just alphanumeric) for the block file names (for download and upload). Added support for OpMode flavor (“Autonomous” or “TeleOp”) and group. Changes to Samples to prevent tutorial issues. Incorporated suggested changes from public pull 216 (“Replace .. paths”). Remove Servo Glitches when robot stopped. if user hits “Cancels” when editing a configuration file, clears the unsaved changes and reverts to original unmodified configuration. Added log info to help diagnose why the Robot Controller app was terminated (for example, by watch dog function). Added ability to transfer log from the controller. Fixed inconsistency for AngularVelocity Limit unbounded growth of data for telemetry. If user does not call telemetry.update() for LinearOpMode in a timely manner, data added for telemetry might get lost if size limit is exceeded. Version 2.35 (released on 16.10.06) Blockly programming mode - Removed unnecesary idle() call from blocks for new project. Version 2.30 (released on 16.10.05) Blockly programming mode: Mechanism added to save Blockly op modes from Programming Mode Server onto local device To avoid clutter, blocks are displayed in categorized folders Added support for DigitalChannel Added support for ModernRoboticsI2cCompassSensor Added support for ModernRoboticsI2cRangeSensor Added support for VoltageSensor Added support for AnalogInput Added support for AnalogOutput Fix for CompassSensor setMode block Vuforia Fix deadlock / make camera data available while Vuforia is running. Update to Vuforia 6.0.117 (recommended by Vuforia and Google to close security loophole). Fix for autonomous 30 second timer bug (where timer was in effect, even though it appeared to have timed out). opModeIsActive changes to allow cleanup after op mode is stopped (with enforced 2 second safety timeout). Fix to avoid reading i2c twice. Updated sample Op Modes. Improved logging and fixed intermittent freezing. Added digital I/O sample. Cleaned up device names in sample op modes to be consistent with Pushbot guide. Fix to allow use of IrSeekerSensorV3. Version 2.20 (released on 16.09.08) Support for Modern Robotics Compass Sensor. Support for Modern Robotics Range Sensor. Revise device names for Pushbot templates to match the names used in Pushbot guide. Fixed bug so that IrSeekerSensorV3 device is accessible as IrSeekerSensor in hardwareMap. Modified computer vision code to require an individual Vuforia license (per legal requirement from PTC). Minor fixes. Blockly enhancements: Support for Voltage Sensor. Support for Analog Input. Support for Analog Output. Support for Light Sensor. Support for Servo Controller. Version 2.10 (released on 16.09.03) Support for Adafruit IMU. Improvements to ModernRoboticsI2cGyro class Block on reset of z axis. isCalibrating() returns true while gyro is calibration. Updated sample gyro program. Blockly enhancements support for android.graphics.Color. added support for ElapsedTime. improved look and legibility of blocks. support for compass sensor. support for ultrasonic sensor. support for IrSeeker. support for LED. support for color sensor. support for CRServo prompt user to configure robot before using programming mode. Provides ability to disable audio cues. various bug fixes and improvements. Version 2.00 (released on 16.08.19) This is the new release for the upcoming 2016-2017 FIRST Tech Challenge Season. Channel change is enabled in the FTC Robot Controller app for Moto G 2nd and 3rd Gen phones. Users can now use annotations to register/disable their Op Modes. Changes in the Android SDK, JDK and build tool requirements (minsdk=19, java 1.7, build tools 23.0.3). Standardized units in analog input. Cleaned up code for existing analog sensor classes. setChannelMode and getChannelMode were REMOVED from the DcMotorController class. This is important - we no longer set the motor modes through the motor controller. setMode and getMode were added to the DcMotor class. ContinuousRotationServo class has been added to the FTC SDK. Range.clip() method has been overloaded so it can support this operation for int, short and byte integers. Some changes have been made (new methods added) on how a user can access items from the hardware map. Users can now set the zero power behavior for a DC motor so that the motor will brake or float when power is zero. Prototype Blockly Programming Mode has been added to FTC Robot Controller. Users can place the Robot Controller into this mode, and then use a device (such as a laptop) that has a Javascript enabled browser to write Blockly-based Op Modes directly onto the Robot Controller. Users can now configure the robot remotely through the FTC Driver Station app. Android Studio project supports Android Studio 2.1.x and compile SDK Version 23 (Marshmallow). Vuforia Computer Vision SDK integrated into FTC SDK. Users can use sample vision targets to get localization information on a standard FTC field. Project structure has been reorganized so that there is now a TeamCode package that users can use to place their local/custom Op Modes into this package. Inspection function has been integrated into the FTC Robot Controller and Driver Station Apps (Thanks Team HazMat… 9277 & 10650!). Audio cues have been incorporated into FTC SDK. Swap mechanism added to FTC Robot Controller configuration activity. For example, if you have two motor controllers on a robot, and you misidentified them in your configuration file, you can use the Swap button to swap the devices within the configuration file (so you do not have to manually re-enter in the configuration info for the two devices). Fix mechanism added to all user to replace an electronic module easily. For example, suppose a servo controller dies on your robot. You replace the broken module with a new module, which has a different serial number from the original servo controller. You can use the Fix button to automatically reconfigure your configuration file to use the serial number of the new module. Improvements made to fix resiliency and responsiveness of the system. For LinearOpMode the user now must for a telemetry.update() to update the telemetry data on the driver station. This update() mechanism ensures that the driver station gets the updated data properly and at the same time. The Auto Configure function of the Robot Controller is now template based. If there is a commonly used robot configuration, a template can be created so that the Auto Configure mechanism can be used to quickly configure a robot of this type. The logic to detect a runaway op mode (both in the LinearOpMode and OpMode types) and to abort the run, then auto recover has been improved/implemented. Fix has been incorporated so that Logitech F310 gamepad mappings will be correct for Marshmallow users. Release 16.07.08 For the ftc_app project, the gradle files have been modified to support Android Studio 2.1.x. Release 16.03.30 For the MIT App Inventor, the design blocks have new icons that better represent the function of each design component. Some changes were made to the shutdown logic to ensure the robust shutdown of some of our USB services. A change was made to LinearOpMode so as to allow a given instance to be executed more than once, which is required for the App Inventor. Javadoc improved/updated. Release 16.03.09 Changes made to make the FTC SDK synchronous (significant change!) waitOneFullHardwareCycle() and waitForNextHardwareCycle() are no longer needed and have been deprecated. runOpMode() (for a LinearOpMode) is now decoupled from the system's hardware read/write thread. loop() (for an OpMode) is now decoupled from the system's hardware read/write thread. Methods are synchronous. For example, if you call setMode(DcMotorController.RunMode.RESET_ENCODERS) for a motor, the encoder is guaranteed to be reset when the method call is complete. For legacy module (NXT compatible), user no longer has to toggle between read and write modes when reading from or writing to a legacy device. Changes made to enhance reliability/robustness during ESD event. Changes made to make code thread safe. Debug keystore added so that user-generated robot controller APKs will all use the same signed key (to avoid conflicts if a team has multiple developer laptops for example). Firmware version information for Modern Robotics modules are now logged. Changes made to improve USB comm reliability and robustness. Added support for voltage indicator for legacy (NXT-compatible) motor controllers. Changes made to provide auto stop capabilities for op modes. A LinearOpMode class will stop when the statements in runOpMode() are complete. User does not have to push the stop button on the driver station. If an op mode is stopped by the driver station, but there is a run away/uninterruptible thread persisting, the app will log an error message then force itself to crash to stop the runaway thread. Driver Station UI modified to display lowest measured voltage below current voltage (12V battery). Driver Station UI modified to have color background for current voltage (green=good, yellow=caution, red=danger, extremely low voltage). javadoc improved (edits and additional classes). Added app build time to About activity for driver station and robot controller apps. Display local IP addresses on Driver Station About activity. Added I2cDeviceSynchImpl. Added I2cDeviceSync interface. Added seconds() and milliseconds() to ElapsedTime for clarity. Added getCallbackCount() to I2cDevice. Added missing clearI2cPortActionFlag. Added code to create log messages while waiting for LinearOpMode shutdown. Fix so Wifi Direct Config activity will no longer launch multiple times. Added the ability to specify an alternate i2c address in software for the Modern Robotics gyro. Release 16.02.09 Improved battery checker feature so that voltage values get refreshed regularly (every 250 msec) on Driver Station (DS) user interface. Improved software so that Robot Controller (RC) is much more resilient and “self-healing” to USB disconnects: If user attempts to start/restart RC with one or more module missing, it will display a warning but still start up. When running an op mode, if one or more modules gets disconnected, the RC & DS will display warnings,and robot will keep on working in spite of the missing module(s). If a disconnected module gets physically reconnected the RC will auto detect the module and the user will regain control of the recently connected module. Warning messages are more helpful (identifies the type of module that’s missing plus its USB serial number). Code changes to fix the null gamepad reference when users try to reference the gamepads in the init() portion of their op mode. NXT light sensor output is now properly scaled. Note that teams might have to readjust their light threshold values in their op modes. On DS user interface, gamepad icon for a driver will disappear if the matching gamepad is disconnected or if that gamepad gets designated as a different driver. Robot Protocol (ROBOCOL) version number info is displayed in About screen on RC and DS apps. Incorporated a display filter on pairing screen to filter out devices that don’t use the “-“ format. This filter can be turned off to show all WiFi Direct devices. Updated text in License file. Fixed formatting error in OpticalDistanceSensor.toString(). Fixed issue on with a blank (“”) device name that would disrupt WiFi Direct Pairing. Made a change so that the WiFi info and battery info can be displayed more quickly on the DS upon connecting to RC. Improved javadoc generation. Modified code to make it easier to support language localization in the future. Release 16.01.04 Updated compileSdkVersion for apps Prevent Wifi from entering power saving mode removed unused import from driver station Corrrected "Dead zone" joystick code. LED.getDeviceName and .getConnectionInfo() return null apps check for ROBOCOL_VERSION mismatch Fix for Telemetry also has off-by-one errors in its data string sizing / short size limitations error User telemetry output is sorted. added formatting variants to DbgLog and RobotLog APIs code modified to allow for a long list of op mode names. changes to improve thread safety of RobocolDatagramSocket Fix for "missing hardware leaves robot controller disconnected from driver station" error fix for "fast tapping of Init/Start causes problems" (toast is now only instantiated on UI thread). added some log statements for thread life cycle. moved gamepad reset logic inside of initActiveOpMode() for robustness changes made to mitigate risk of race conditions on public methods. changes to try and flag when WiFi Direct name contains non-printable characters. fix to correct race condition between .run() and .close() in ReadWriteRunnableStandard. updated FTDI driver made ReadWriteRunnableStanard interface public. fixed off-by-one errors in Command constructor moved specific hardware implmentations into their own package. moved specific gamepad implemnatations to the hardware library. changed LICENSE file to new BSD version. fixed race condition when shutting down Modern Robotics USB devices. methods in the ColorSensor classes have been synchronized. corrected isBusy() status to reflect end of motion. corrected "back" button keycode. the notSupported() method of the GyroSensor class was changed to protected (it should not be public). Release 15.11.04.001 Added Support for Modern Robotics Gyro. The GyroSensor class now supports the MR Gyro Sensor. Users can access heading data (about Z axis) Users can also access raw gyro data (X, Y, & Z axes). Example MRGyroTest.java op mode included. Improved error messages More descriptive error messages for exceptions in user code. Updated DcMotor API Enable read mode on new address in setI2cAddress Fix so that driver station app resets the gamepads when switching op modes. USB-related code changes to make USB comm more responsive and to display more explicit error messages. Fix so that USB will recover properly if the USB bus returns garbage data. Fix USB initializtion race condition. Better error reporting during FTDI open. More explicit messages during USB failures. Fixed bug so that USB device is closed if event loop teardown method was not called. Fixed timer UI issue Fixed duplicate name UI bug (Legacy Module configuration). Fixed race condition in EventLoopManager. Fix to keep references stable when updating gamepad. For legacy Matrix motor/servo controllers removed necessity of appending "Motor" and "Servo" to controller names. Updated HT color sensor driver to use constants from ModernRoboticsUsbLegacyModule class. Updated MR color sensor driver to use constants from ModernRoboticsUsbDeviceInterfaceModule class. Correctly handle I2C Address change in all color sensors Updated/cleaned up op modes. Updated comments in LinearI2cAddressChange.java example op mode. Replaced the calls to "setChannelMode" with "setMode" (to match the new of the DcMotor method). Removed K9AutoTime.java op mode. Added MRGyroTest.java op mode (demonstrates how to use MR Gyro Sensor). Added MRRGBExample.java op mode (demonstrates how to use MR Color Sensor). Added HTRGBExample.java op mode (demonstrates how to use HT legacy color sensor). Added MatrixControllerDemo.java (demonstrates how to use legacy Matrix controller). Updated javadoc documentation. Updated release .apk files for Robot Controller and Driver Station apps. Release 15.10.06.002 Added support for Legacy Matrix 9.6V motor/servo controller. Cleaned up build.gradle file. Minor UI and bug fixes for driver station and robot controller apps. Throws error if Ultrasonic sensor (NXT) is not configured for legacy module port 4 or 5. Release 15.08.03.001 New user interfaces for FTC Driver Station and FTC Robot Controller apps. An init() method is added to the OpMode class. For this release, init() is triggered right before the start() method. Eventually, the init() method will be triggered when the user presses an "INIT" button on driver station. The init() and loop() methods are now required (i.e., need to be overridden in the user's op mode). The start() and stop() methods are optional. A new LinearOpMode class is introduced. Teams can use the LinearOpMode mode to create a linear (not event driven) program model. Teams can use blocking statements like Thread.sleep() within a linear op mode. The API for the Legacy Module and Core Device Interface Module have been updated. Support for encoders with the Legacy Module is now working. The hardware loop has been updated for better performance.

MIT Introduction to Deep Learning (6.S191) Instructors: Alexander Amini and Ava Soleimany Course Information Summary Prerequisites Schedule Lectures Labs, Final Projects, Grading, and Prizes Software labs Gather.Town lab + Office Hour sessions Final project Paper Review Project Proposal Presentation Project Proposal Grading Rubric Past Project Proposal Ideas Awards + Categories Important Links and Emails Course Information Summary MIT's introductory course on deep learning methods with applications to computer vision, natural language processing, biology, and more! Students will gain foundational knowledge of deep learning algorithms and get practical experience in building neural networks in TensorFlow. Course concludes with a project proposal competition with feedback from staff and a panel of industry sponsors. Prerequisites We expect basic knowledge of calculus (e.g., taking derivatives), linear algebra (e.g., matrix multiplication), and probability (e.g., Bayes theorem) -- we'll try to explain everything else along the way! Experience in Python is helpful but not necessary. This class is taught during MIT's IAP term by current MIT PhD researchers. Listeners are welcome! Schedule Monday Jan 18, 2021 Lecture: Introduction to Deep Learning and NNs Lab: Lab 1A Tensorflow and building NNs from scratch Tuesday Jan 19, 2021 Lecture: Deep Sequence Modelling Lab: Lab 1B Music Generation using RNNs Wednesday Jan 20, 2021 Lecture: Deep Computer Vision Lab: Lab 2A Image classification and detection Thursday Jan 21, 2021 Lecture: Deep Generative Modelling Lab: Lab 2B Debiasing facial recognition systems Friday Jan 22, 2021 Lecture: Deep Reinforcement Learning Lab: Lab 3 pixel-to-control planning Monday Jan 25, 2021 Lecture: Limitations and New Frontiers Lab: Lab 3 continued Tuesday Jan 26, 2021 Lecture (part 1): Evidential Deep Learning Lecture (part 2): Bias and Fairness Lab: Work on final assignments Lab competition entries due at 11:59pm ET on Canvas! Lab 1, Lab 2, and Lab 3 Wednesday Jan 27, 2021 Lecture (part 1): Nigel Duffy, Ernst & Young Lecture (part 2): Kate Saenko, Boston University and MIT-IBM Watson AI Lab Lab: Work on final assignments Assignments due: Sign up for Final Project Competition Thursday Jan 28, 2021 Lecture (part 1): Sanja Fidler, U. Toronto, Vector Institute, and NVIDIA Lecture (part 2): Katherine Chou, Google Lab: Work on final assignments Assignments due: 1 page paper review (if applicable) Friday Jan 29, 2021 Lecture: Student project pitch competition Lab: Awards ceremony and prize giveaway Assignments due: Project proposals (if applicable) Lectures Lectures will be held starting at 1:00pm ET from Jan 18 - Jan 29 2021, Monday through Friday, virtually through Zoom. Current MIT students, faculty, postdocs, researchers, staff, etc. will be able to access the lectures during this two week period, synchronously or asynchronously, via the MIT Canvas course webpage (MIT internal only). Lecture recordings will be uploaded to the Canvas as soon as possible; students are not required to attend any lectures synchronously. Please see the Canvas for details on Zoom links. The public edition of the course will only be made available after completion of the MIT course. Labs, Final Projects, Grading, and Prizes Course will be graded during MIT IAP for 6 units under P/D/F grading. Receiving a passing grade requires completion of each software lab project (through honor code, with submission required to enter lab competitions), a final project proposal/presentation or written review of a deep learning paper (submission required), and attendance/lecture viewing (through honor code). Submission of a written report or presentation of a project proposal will ensure a passing grade. MIT students will be eligible for prizes and awards as part of the class competitions. There will be two parts to the competitions: (1) software labs and (2) final projects. More information is provided below. Winners will be announced on the last day of class, with thousands of dollars of prizes being given away! Software labs There are three TensorFlow software lab exercises for the course, designed as iPython notebooks hosted in Google Colab. Software labs can be found on GitHub: https://github.com/aamini/introtodeeplearning. These are self-paced exercises and are designed to help you gain practical experience implementing neural networks in TensorFlow. For registered MIT students, submission of lab materials is not necessary to get credit for the course or to pass the course. At the end of each software lab there will be task-associated materials to submit (along with instructions) for entry into the competitions, open to MIT students and affiliates during the IAP offering. This includes MIT students/affiliates who are taking the class as listeners -- you are eligible! These instructions are provided at the end of each of the labs. Completing these tasks and submitting your materials to Canvas will enter you into a per-lab competition. MIT students and affiliates will be eligible for prizes during the IAP offering; at the end of the course, prize-winners will be awarded with their prizes. All competition submissions are due on January 26 at 11:59pm ET to Canvas. For the software lab competitions, submissions will be judged on the basis of the following criteria: Strength and quality of final results (lab dependent) Soundness of implementation and approach Thoroughness and quality of provided descriptions and figures Gather.Town lab + Office Hour sessions After each day’s lecture, there will be open Office Hours in the class GatherTown, up until 3pm ET. An MIT email is required to log in and join the GatherTown. During these sessions, there will not be a walk through or dictation of the labs; the labs are designed to be self-paced and to be worked on on your own time. The GatherTown sessions will be hosted by course staff and are held so you can: Ask questions on course lectures, labs, logistics, project, or anything else; Work on the labs in the presence of classmates/TAs/instructors; Meet classmates to find groups for the final project; Group work time for the final project; Bring the class community together. Final project To satisfy the final project requirement for this course, students will have two options: (1) write a 1 page paper review (single-spaced) on a recent deep learning paper of your choice or (2) participate and present in the project proposal pitch competition. The 1 page paper review option is straightforward, we propose some papers within this document to help you get started, and you can satisfy a passing grade with this option -- you will not be eligible for the grand prizes. On the other hand, participation in the project proposal pitch competition will equivalently satisfy your course requirements but additionally make you eligible for the grand prizes. See the section below for more details and requirements for each of these options. Paper Review Students may satisfy the final project requirement by reading and reviewing a recent deep learning paper of their choosing. In the written review, students should provide both: 1) a description of the problem, technical approach, and results of the paper; 2) critical analysis and exposition of the limitations of the work and opportunities for future work. Reviews should be submitted on Canvas by Thursday Jan 28, 2021, 11:59:59pm Eastern Time (ET). Just a few paper options to consider... https://papers.nips.cc/paper/2017/file/3f5ee243547dee91fbd053c1c4a845aa-Paper.pdf https://papers.nips.cc/paper/2018/file/69386f6bb1dfed68692a24c8686939b9-Paper.pdf https://papers.nips.cc/paper/2020/file/1457c0d6bfcb4967418bfb8ac142f64a-Paper.pdf https://science.sciencemag.org/content/362/6419/1140 https://papers.nips.cc/paper/2018/file/0e64a7b00c83e3d22ce6b3acf2c582b6-Paper.pdf https://arxiv.org/pdf/1906.11829.pdf https://www.nature.com/articles/s42256-020-00237-3 https://pubmed.ncbi.nlm.nih.gov/32084340/ Project Proposal Presentation Keyword: proposal This is a 2 week course so we do not require results or working implementations! However, to win the top prizes, nice, clear results and implementations will demonstrate feasibility of your proposal which is something we look for! Logistics -- please read! You must sign up to present before 11:59:59pm Eastern Time (ET) on Wednesday Jan 27, 2021 Slides must be in a Google Slide before 11:59:59pm Eastern Time (ET) on Thursday Jan 28, 2021 Project groups can be between 1 and 5 people Listeners welcome To be eligible for a prize you must have at least 1 registered MIT student in your group Each participant will only be allowed to be in one group and present one project pitch Synchronous attendance on 1/29/21 is required to make the project pitch! 3 min presentation on your idea (we will be very strict with the time limits) Prizes! (see below) Sign up to Present here: by 11:59pm ET on Wednesday Jan 27 Once you sign up, make your slide in the following Google Slides; submit by midnight on Thursday Jan 28. Please specify the project group # on your slides!!! Things to Consider This doesn’t have to be a new deep learning method. It can just be an interesting application that you apply some existing deep learning method to. What problem are you solving? Are there use cases/applications? Why do you think deep learning methods might be suited to this task? How have people done it before? Is it a new task? If so, what are similar tasks that people have worked on? In what aspects have they succeeded or failed? What is your method of solving this problem? What type of model + architecture would you use? Why? What is the data for this task? Do you need to make a dataset or is there one publicly available? What are the characteristics of the data? Is it sparse, messy, imbalanced? How would you deal with that? Project Proposal Grading Rubric Project proposals will be evaluated by a panel of judges on the basis of the following three criteria: 1) novelty and impact; 2) technical soundness, feasibility, and organization, including quality of any presented results; 3) clarity and presentation. Each judge will award a score from 1 (lowest) to 5 (highest) for each of the criteria; the average score from each judge across these criteria will then be averaged with that of the other judges to provide the final score. The proposals with the highest final scores will be selected for prizes. Here are the guidelines for the criteria: Novelty and impact: encompasses the potential impact of the project idea, its novelty with respect to existing approaches. Why does the proposed work matter? What problem(s) does it solve? Why are these problems important? Technical soundness, feasibility, and organization: encompasses all technical aspects of the proposal. Do the proposed methodology and architecture make sense? Is the architecture the best suited for the proposed problem? Is deep learning the best approach for the problem? How realistic is it to implement the idea? Was there any implementation of the method? If results and data are presented, we will evaluate the strength of the results/data. Clarity and presentation: encompasses the delivery and quality of the presentation itself. Is the talk well organized? Are the slides aesthetically compelling? Is there a clear, well-delivered narrative? Are the problem and proposed method clearly presented? Past Project Proposal Ideas Recipe Generation with RNNs Can we compress videos with CNN + RNN? Music Generation with RNNs Style Transfer Applied to X GAN’s on a new modality Summarizing text/news articles Combining news articles about similar events Code or spec generation Multimodal speech → handwriting Generate handwriting based on keywords (i.e. cursive, slanted, neat) Predicting stock market trends Show language learners articles or videos at their level Transfer of writing style Chemical Synthesis with Recurrent Neural networks Transfer learning to learn something in a domain for which it’s hard or risky to gather data or do training RNNs to model some type of time series data Computer vision to coach sports players Computer vision system for safety brakes or warnings Use IBM Watson API to get the sentiment of your Facebook newsfeed Deep learning webcam to give wifi-access to friends or improve video chat in some way Domain-specific chatbot to help you perform a specific task Detect whether a signature is fraudulent Awards + Categories Final Project Awards: 1x NVIDIA RTX 3080 4x Google Home Max 3x Display Monitors Software Lab Awards: Bose headphones (Lab 1) Display monitor (Lab 2) Bebop drone (Lab 3) Important Links and Emails Course website: http://introtodeeplearning.com Course staff: introtodeeplearning-staff@mit.edu Piazza forum (MIT only): https://piazza.com/mit/spring2021/6s191 Canvas (MIT only): https://canvas.mit.edu/courses/8291 Software lab repository: https://github.com/aamini/introtodeeplearning Lab/office hour sessions (MIT only): https://gather.town/app/56toTnlBrsKCyFgj/MITDeepLearning

Amazon crawler - this configuration will extract items for a keywords that you will specify in the input, and it will automatically extract all pages for the given keyword. You can specify more keywords on the input for one run.

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The earliest work in computerized knowledge representation was focused on general problem solvers such as the General Problem Solver (GPS) system developed by Allen Newell and Herbert A. Simon in 1959. These systems featured data structures for planning and decomposition. The system would begin with a goal. It would then decompose that goal into sub-goals and then set out to construct strategies that could accomplish each subgoal. In these early days of AI, general search algorithms such as A* were also developed. However, the amorphous problem definitions for systems such as GPS meant that they worked only for very constrained toy domains (e.g. the "blocks world"). In order to tackle non-toy problems, AI researchers such as Ed Feigenbaum and Frederick Hayes-Roth realized that it was necessary to focus systems on more constrained problems. These efforts led to the cognitive revolution in psychology and to the phase of AI focused on knowledge representation that resulted in expert systems in the 1970s and 80s, production systems, frame languages, etc. Rather than general problem solvers, AI changed its focus to expert systems that could match human competence on a specific task, such as medical diagnosis. Expert systems gave us the terminology still in use today where AI systems are divided into a Knowledge Base with facts about the world and rules and an inference engine that applies the rules to the knowledge base in order to answer questions and solve problems. In these early systems the knowledge base tended to be a fairly flat structure, essentially assertions about the values of variables used by the rules.[2] In addition to expert systems, other researchers developed the concept of frame-based languages in the mid-1980s. A frame is similar to an object class: It is an abstract description of a category describing things in the world, problems, and potential solutions. Frames were originally used on systems geared toward human interaction, e.g. understanding natural language and the social settings in which various default expectations such as ordering food in a restaurant narrow the search space and allow the system to choose appropriate responses to dynamic situations. It was not long before the frame communities and the rule-based researchers realized that there was synergy between their approaches. Frames were good for representing the real world, described as classes, subclasses, slots (data values) with various constraints on possible values. Rules were good for representing and utilizing complex logic such as the process to make a medical diagnosis. Integrated systems were developed that combined Frames and Rules. One of the most powerful and well known was the 1983 Knowledge Engineering Environment (KEE) from Intellicorp. KEE had a complete rule engine with forward and backward chaining. It also had a complete frame based knowledge base with triggers, slots (data values), inheritance, and message passing. Although message passing originated in the object-oriented community rather than AI it was quickly embraced by AI researchers as well in environments such as KEE and in the operating systems for Lisp machines from Symbolics, Xerox, and Texas Instruments.[3] The integration of Frames, rules, and object-oriented programming was significantly driven by commercial ventures such as KEE and Symbolics spun off from various research projects. At the same time as this was occurring, there was another strain of research that was less commercially focused and was driven by mathematical logic and automated theorem proving. One of the most influential languages in this research was the KL-ONE language of the mid-'80s. KL-ONE was a frame language that had a rigorous semantics, formal definitions for concepts such as an Is-A relation.[4] KL-ONE and languages that were influenced by it such as Loom had an automated reasoning engine that was based on formal logic rather than on IF-THEN rules. This reasoner is called the classifier. A classifier can analyze a set of declarations and infer new assertions, for example, redefine a class to be a subclass or superclass of some other class that wasn't formally specified. In this way the classifier can function as an inference engine, deducing new facts from an existing knowledge base. The classifier can also provide consistency checking on a knowledge base (which in the case of KL-ONE languages is also referred to as an Ontology).[5] Another area of knowledge representation research was the problem of common sense reasoning. One of the first realizations learned from trying to make software that can function with human natural language was that humans regularly draw on an extensive foundation of knowledge about the real world that we simply take for granted but that is not at all obvious to an artificial agent. Basic principles of common sense physics, causality, intentions, etc. An example is the frame problem, that in an event driven logic there need to be axioms that state things maintain position from one moment to the next unless they are moved by some external force. In order to make a true artificial intelligence agent that can converse with humans using natural language and can process basic statements and questions about the world, it is essential to represent this kind of knowledge. One of the most ambitious programs to tackle this problem was Doug Lenat's Cyc project. Cyc established its own Frame language and had large numbers of analysts document various areas of common sense reasoning in that language. The knowledge recorded in Cyc included common sense models of time, causality, physics, intentions, and many others.[6] The starting point for knowledge representation is the knowledge representation hypothesis first formalized by Brian C. Smith in 1985:[7] Any mechanically embodied intelligent process will be comprised of structural ingredients that a) we as external observers naturally take to represent a propositional account of the knowledge that the overall process exhibits, and b) independent of such external semantic attribution, play a formal but causal and essential role in engendering the behavior that manifests that knowledge. Currently one of the most active areas of knowledge representation research are projects associated with the Semantic Web. The Semantic Web seeks to add a layer of semantics (meaning) on top of the current Internet. Rather than indexing web sites and pages via keywords, the Semantic Web creates large ontologies of concepts. Searching for a concept will be more effective than traditional text only searches. Frame languages and automatic classification play a big part in the vision for the future Semantic Web. The automatic classification gives developers technology to provide order on a constantly evolving network of knowledge. Defining ontologies that are static and incapable of evolving on the fly would be very limiting for Internet-based systems. The classifier technology provides the ability to deal with the dynamic environment of the Internet. Recent projects funded primarily by the Defense Advanced Research Projects Agency (DARPA) have integrated frame languages and classifiers with markup languages based on XML. The Resource Description Framework (RDF) provides the basic capability to define classes, subclasses, and properties of objects. The Web Ontology Language (OWL) provides additional levels of semantics and enables integration with classification engines.[8][9]

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Search engine optimization (SEO) refers to methods that used to increase traffic to a website by increasing its search engine page rank. SEO is most often involves improving the quality of the content, ensuring that it is rich in relevant keywords and organizing it by using subheads, bullet points, and bold and italic characters. SEO also ensures that the site’s HTML is optimized such that a search engine can also determine what is on the page and display it as a search result in relevant searches. These standards involve the use of metadata, including the title tag and Meta description also. Get your keyword research on. If you’re going to post content on your website anyway, you might as well take the time to make sure Google takes a notice of your effort that you have done. Find out which keywords and phrases people are searching for as well as what you can be competitive, and make yourself a keyword spreadsheet to keep a track. When keep track of how many times you work the keywords into your content, and use the right tools to track where you rank for the keywords you target. Put the keywords to work. However, being an SEO content writer just meant dumping keywords into your copy but that’s not how the game is played anymore. While it’s still a good idea to include your target keyword throughout your content, peppering your copy with forced keywords won’t really move the dial much also. As the case with any bit of SEO strategy, you’ve got to be more tactical. Remember, the people using search engines are searching for that particular kind phrase because they want to know more about it/buy it, so it makes sense to give them what they’re looking for. You’ll get more of clicks if you do it’s one of the tricks of the trade for professional SEO article writers. Write about something people care about. We’re not being facetious, here too often, and article writers just to pump out content for no real reason, with no real strategy behind it. They forget that actual humans need to want to read this stuff you’re not really writing for mainly for Google’s algorithms, you’re writing for people! When you’re writing, you should always seek to offer some sort of value added things to your readers. What can you tell them that no one else can? What service can you provide that’s unique? What knowledge can you share that can’t be found anywhere else? Know the basics of technical SEO All the keyword optimization in the world won’t help you if your site isn’t even indexed. As a writer, you aren’t expected to know how to migrate a website, or to enable HTTPS across an entire domain. You don’t really have to know about how to maximize a crawl budget as well, and you don’t have to know about minifying JavaScript. Yet, knowing a few things about technical of search engine optimization specialists can make you a better SEO writer. Mostly, understanding how Google crawls pages and hands out link authority can help you build a strategy. After all, content writing isn’t just about writing about a singular blog post it’s about writing and linking up a bunch of them together. If you have a good understanding of how your blog should be structured, you can help make everything work with little bit more efficient which means that a backlink to one of your posts will give your site the maximum benefit. Keeping your images small, ensuring that there aren’t too many popups on any particular page, or simply being able to make sure that your blog posts are indexed are all skills you should have as a search engine optimization service writer. Watch your analytics. SEO writing isn’t fire-and-forget you shouldn’t just post your content and walk away from it. In fact, you should be regularly monitoring your content using Google Analytics. According to data gathered by the folks, time on site, bounce rate, and pages per session are all as important if not more important than keyword density. When you think about it, that’s not that surprising much. If your website has a high bounce rate, that means that visitors to your site aren’t staying for long, likely because your page isn’t providing them with the information what they’re looking for. If your bounce rate is high, there’s a good chance your page isn’t optimized properly for the appropriate keywords so search engine optimization agency.

Group Project II: E-Commerce Build your own-designed E-Commerce Project following the below requirements: The project should have three user types: Admin, Client, Seller. Admin: Admin shall be able to view all registered clients on the website Admin shall be able to ban clients from entering the website Admin shall be able to add / edit / delete seller (or service provider) Admin shall be able view general statistics using graphs (Best seller of the week / month / year, Top Client per week/ month / year, total number of products on the website, total number of sellers, total number of sellers, etc. ) Admins shall have a Desktop App built using Electron.js Client: Client shall be able to login / register on the website Client shall be able to surf the website and check posted products / items Client shall be able to favorite items and check favorited items Client shall be able to view single item Client shall be able to search for a specific item by entering keywords Client shall be able to add items to cart and then checkout (on checkout, we assume that the user paid so a message will be shown saying congratulations, payment succeeded) Client shall be able to edit profile Client shall be able to add items to wishlist. Items in wishlist can be automatically go to checkout through on click. Client shall be able to send vouchers to their friends (optional through QR Code) Client shall be able to apply discounts when checking out. Clients shall be able to chat (not necessarily live) with the sellers. Clients shall be able to reset password (by sending it by email) Client shall have a web interface (typical website) Seller: Seller shall be able to add categories Seller shall be able to add products under category Seller shall be able to edit / delete products Seller shall be able to check the revenue of a certain period of time (last week. last month, last year) Seller shall be able to create its own discount codes. Seller shall be able to view Top 5 Products Viewed Seller shall be able to upload ads that will be displayed on the landing page of the website Sellers shall have a web interface (with the look and feel of a panel with left menu) Start designing the wireframes and the mockups. Julien can meet up with you tomorrow only. Please team leaders book a meeting with him ASAP. Ugly projects will lead to immediate contract termination. You are asked to use Jira (Project Tracking Software for Agile Methodology) and to do standup meetings everyday. Team Leaders should have 5 different screenshots or other types of proofs during the presentation day. Team Leaders should learn Jira, understand it, and pitch it in front of the team members. Teams who link Jira to their GitHub Repos will have an advantage! You will be using GitHub with different branches. Pull Requests are big plus. Team Leader is the only one who is allowed to merge branches to Main / Origin. You are obliged to use Axios through the whole project. Bonus: Implement a lottery system. Clients choose a combination of three numbers. Admins trigger the draw. If 3 numbers are matched, respective clients win 100$ Voucher. Else if 2 numbers are matched, 50$ voucher. Else, 20$ Voucher. Deadline: Sunday 25th at 11:59 PM. Deliverable: One Repo Link (containing four folders: client-frontend, seller-frontend, admin-electron, and ecommerce-server) Enjoy the Process !

The SEO manager module developed to add meta description and meta keywords and change the page title with one click

Find web pages that contain keywords near each other (like PublicWWW “Snippets”) using the free Common Crawl dataset. This script searches Common Crawl WET files (text-only renditions of crawled pages), requiring at least one hit per group of keywords within a sliding window (NEAR/N). It can also emit a short snippet and capture date per match.

Page-Selection-By-Keyword-Matching is a project that was developed using python at my institute in a one week WISE program

The assignment is creating a Web search engine that incorporates concepts from three to five different classes. Individual or group projects can be developed, however group work is encouraged. In the case of group work, each group member will receive an individual grade. Students are encouraged to submit their own suggestions for things that should be included in the Web search engine. Finding patterns using regular expressions, converting HTML to text, ranking web pages using sorting, heaps, or other data structures, finding keywords using string matching, using inverted index, analysing frequencies using hash tables or search trees, using large dictionaries/datasets, sorting techniques, search trees, spellchecking keywords or HTML files, and so on are just a few examples. Some concepts were discussed in class, while others were included in the assignments (as optional work). It's worth noting that a graphical user interface for your search engine isn't needed, even if you want to use one.

Ask, Mindspark I want to restore my Home Page I want to restore my Search Engine I want to disable search from my New Tab page I want to reset my Chrome Address bar Are you curious why you're seeing Ask.com search results? Need more help? Visit our Support Center. I want to restore my Home Page IE 9+ IE 8 IE 7 Firefox 1. Navigate to the page you want set as your home page. 2. At the top of the Firefox window on the menu bar, click on the "Tools" tab, and select "Options". 3. If it isn't already selected, click the "General" icon. 4. Under the "Startup" section, click on "Use Current Page" or type your preferred home page URL into the box. (If you have a group of tabs open, the entire group of tabs will be set as your home page. You can also use the "Use Bookmark" button to set one of your bookmarks as your home page.) 5. Click the "OK" button to close the Options window. I want to restore my Search Engine IE 9 IE 10+ IE 8 IE 7 Firefox 1. Click on the arrow located to the left of the search box -- at the top right of your browser window. 2. From the drop-down menu, select "Manage Search Engines" 3. You can remove any unwanted search engines by selecting them and clicking the "Remove" button. Your default search will be the first search engine listed. 4. After you have finished editing the list, click the "OK" button. Occasionally during the uninstall process, Firefox search settings are not restored to their default value. Please try the following method to manually restore your browser's settings: 1. Open your Firefox browser and type the following into the address bar: about:config. You will see a warning message after doing so, please click the "I'll be careful, I promise" button. 2. In the filter box near the top, type in "Ask Web Search" and hit enter. 3. Look for an entry labeled "keyword.URL" and confirm that it is set to a url that corresponds with "Ask Web Search". 4. Click on the line to highlight it, and then right-click it to bring up its menu options. 5. Select "Modify" from the menu, and entry can be reset to a value of the user's choice (blank or "Google" http://www.google.com/search?ie=UTF-8&oe=UTF-8&q=). 6. Close the browser, and reopen it. 7. To verify that you have successfully restored your browser's default settings, type a search term into your address bar (e.g. weather) and hit Enter. Your browser should now refrain from directing to Ask Web Search. If this still does not resolve your issue, please let us know. I want to disable search from my New Tab page IE 9+ IE 8 IE 7 Chrome 1. Access the "Internet Options" menu by clicking the cog icon in the upper right-hand corner of your browser. 2. Under the "General" tab, find the "Tabs" section. Click the "Settings" button. 3. Under "when a new tab is opened, open:" section select "The new tab page" option from the drop-down menu 4. Click "Ok" and your new tab page will be reset. I want to reset my Chrome Address bar Chrome 1. Click on the three horizontal lines icon in the upper right-hand corner of your Chrome browser. 2. Go to "Settings" 3. Find the Search section and select your preferred search provider from the dropdown list. You can also remove undesired search providers by clicking the "Manage Search Engines" button. ™, ® + © 2014 Mindspark Interactive Network, Inc. All rights reserved. An IAC Company.

What is digital marketing ? Digital marketing services is a multifaceted strategy aimed to target, reach out To and build relationship with customer online, across a broad range Of channels, ultimately getting them to make purchases in the future. The results of digital marketing are dramatic. Blogging alone can help Brands bring in 71 percent more leads compared to those that never Post and more. Seo services also boasts a conversion rate of 14.7 percent, which is dramatically higher than the 1.7 percent conversion rate that traditional Outbound method deliver. Digital marketing consists of the following tactics: Search engine optimization (seo) Content marketing Email marketing Social media marketing Facebook ads Google ads Mobile marketing Online marketing digital marketing agencince employs a wide variety of differents tactics, Strategies, and more online tools to help a business attain its marketing and Sales goals. This can make planning and executing a successful digital Marketing campaign a challenge prospect for most solopreneurs and smaller marketing departments. Given the scope of digital marketing, it’s helpful to look at the most popular Types of digital marketing agencies and the services they offer and more. 7 types of digital marketing agencies Choosing a digital marketing agency can be challenging if you aren’t with the industry. Some agencies specialize in one industry of service while others offer a broad range of services. Remember that the Best one for your business will depend on your budget. Your digital marketing goals and objectives, and how hands on you want to be in your Digital marketing. 1. Digital marketing agency A digital marketing agency reaches customer online through omnichannel Marketing, multichannel marketing. Or single-channel marketing. With Multichannel and single-channel marketing, agencies interact with customers in one or multiple channel such as website, blogs, email, Social media facebook ads youtube ads, and more. Omnichannel marketing refers to marketing that Provides a seamless customer experience across channels and devices Throughout their lifecycle a digital marketing agency typically won’t offer Traditional marketing services 2. Full-services digital marketing agency A full-services digital marketing agency tends to be larger than most other Types of agencies and offer a variety of digital marketing agency. Businesses often partner with full-services digital marketing agencies because they have the experience doing specific projects that the businesses need done, such as lead nurture campaigns or a website Redesign. 3. Inbound marketing agency Inbound marketing agencies offer inbound marketing tactics and strategies, which differ from traditional outbound strategies. Inbound agency seek to position a business online where customers can find them, build trust over time and eventually generate sales. Inbound strategies can yield significant results over time, but they typically retire A longer time horizon before leads and sales “Hockey stick” up. 4.seo agency Digital marketing agencies that specialize in seo(search angine optimization) help their clients’ website and website content to rank High on search results. They will have a special performance the following. Keyword research Website audits Backlink audits Website and blog content Metadata assessment (checking the quality of URL, title tags, meta descriptions, etc and more) Video description optimization Link building And more 5.online ad agency/ppc agency Paid search, also called paid advertising, is another way to generate Traffic to a website. Spending money to bid on keywords and ad placement on search Results. Digital ads can appear on websites, search results pages (SERPs), social media channels and more. This can bring you leads quickly, But your campaign must be properly set up to reach your target audience. Digital marketing agencies that focus on online marketing ads know how to produceAttention-getting, optimized ads that conform to best practices. 6. Social media agency When companies turn to Social Media Agencies, they need helps with starting and maintaining a social media presence on the Internet. Social Media Agency provides service on many platforms like Facebook Ads, Instagram Ads, YouTube Ads and more.They may also offer influencer Marketing for cross promotion. 7. Web design agency A web designing agency is a group of creative designers who build customized websites or web pages for businesses or for personal use. Web Designer will handle the look, feel, and outcome of the pages, Whether it’s for a fresh website, a website and also for redesigners. There are many common services between web designers and ui/ui designers.

<p>Are you looking to move your business online to expand your reach, but you don't know where to start?</p> <p><span style="font-weight: 400;">If the answer is yes, you've come to the right place.</span></p> <p><span style="font-weight: 400;">The recent COVID-19 pandemic has pushed most small businesses into the digital environment because of lockdowns introduced all over the globe. However, this transition has been challenging for many traditional business owners.</span></p> <p><span style="font-weight: 400;">The good news is that building a prominent online presence doesn't have to be an impossible task.&nbsp;</span></p> <p><span style="font-weight: 400;">In this article, we'll cover everything you need to know about the basics of SEO, content marketing, website creation, and other techniques that will make your site visible on Google.</span></p> <ul> <li> <h2><strong><strong>Complete SEO Guide for Beginners</strong></strong></h2> </li> </ul> <p><span style="font-weight: 400;">We put this guide together to guide you through the most important steps of creating a website for your business.&nbsp;</span></p> <p><span style="font-weight: 400;">The information you'll find here is just the tip of the iceberg, so if you want to know more, you can contact a </span><a href="https://www.digitalsilk.com/web-design-company/new-york"><span style="font-weight: 400;">New York web design company</span></a><span style="font-weight: 400;"> for expert advice. Now, let's jump right into it.</span></p> <ul> <li> <h3><strong><strong>1. Choose Your Website's Domain Name Wisely</strong></strong></h3> </li> </ul> <p><span style="font-weight: 400;">You might think that getting a domain name that suits your brand and goals is easy, but you'd be wrong.&nbsp;</span></p> <p><span style="font-weight: 400;">Google's algorithms are designed to scan the domain name to figure out what it's about. So instead of simply putting your business name as the domain, you should sit down and do some brainstorming first.&nbsp;</span></p> <p><span style="font-weight: 400;">There are a few important rules to consider when picking a domain name. Here's a quick overview:</span></p> <ul> <li style="font-weight: 400;"><span style="font-weight: 400;">Choose a name that's relevant to your niche</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">The name should be catchy and easy to remember</span></li> <li style="font-weight: 400;"><span style="font-weight: 400;">It should include the main keyword you want to rank for</span></li> </ul> <p><span style="font-weight: 400;">If you can't fit everything into one domain name, you shouldn't force things. Sometimes, using your company name for the domain name works great.&nbsp;</span></p> <p><span style="font-weight: 400;">However, you might want to add a relevant keyword and your company name to help visitors better understand what you offer.&nbsp;</span></p> <p><span style="font-weight: 400;">Let's say that you sell custom-printed T-shirts and that your company is called Black Swan. Something like www.blackswantshirts.com should do just fine.</span></p> <p><span style="font-weight: 400;">With that said, you should know that lots of domain names are already taken, so check if they are available before picking the final combination.</span></p> <ul> <li> <h3><strong><strong>2. Use Everything Available To Increase Online Visibility</strong></strong></h3> </li> </ul> <p><span style="font-weight: 400;">It doesn't matter what type of business you're running: the moment you create a website, you will be competing against thousands of businesses offering similar products and services.&nbsp;</span></p> <p><span style="font-weight: 400;">The competition is fierce, and you'll have to use everything available to get ahead. The first thing you should do is to open a Google My Business profile.</span></p> <p><span style="font-weight: 400;">You can create one for free and it will make sure that your business appears in relevant searches on Google. You can also use the account as a form of communication with Google as well as you're your customers.&nbsp;</span></p> <p><span style="font-weight: 400;">Update your business information, add details on your work hours and make sure that you fit into the most relevant categories. You can also use the platform to inform Google users about upcoming events, respond to customer reviews, share posts, and provide relevant updates.&nbsp;</span></p> <ul> <li> <h3><strong><strong>3. Keyword Research and Overall Website Design</strong></strong></h3> </li> </ul> <p><span style="font-weight: 400;">Keyword research is the most important part of any SEO effort since search engine ranking mostly depends on the keywords you use.&nbsp;</span></p> <p><span style="font-weight: 400;">You can't possibly optimize your website without the right keywords. As such, you have to find the main terms and subjects you want to focus your SEO efforts on.&nbsp;</span></p> <p><span style="font-weight: 400;">There are all kinds of tools designed to help you find keywords based on the amount of traffic generated by your competitors. As a new brand, you should start with less popular keywords, especially long-tail keywords, and work your way up from there.</span></p> <p><span style="font-weight: 400;">Once you figure out the base of your SEO operations, the next thing to do is to come up with the architecture of the entire website.&nbsp;</span></p> <p><span style="font-weight: 400;">In other words, you have to find the best way to organize your product or service offerings. The homepage is always on top of the pyramid, and the information is then divided into subpages and categories.&nbsp;</span></p> <p><span style="font-weight: 400;">Remember to keep things simple, or your visitors will get lost while navigating between the pages.</span></p> <ul> <li> <h3><strong><strong>4. Stock Up On Website Content</strong></strong></h3> </li> </ul> <p><span style="font-weight: 400;">When you got everything above in order, it's time to populate your website with SEO-optimized content.&nbsp;</span></p> <p><span style="font-weight: 400;">Start with your landing pages, homepage, and other pages where the content won't change in the near future. Make sure that you use the keywords you found across all these pages, as that will help increase your Google ranking.</span></p> <p><span style="font-weight: 400;">However, that's just the first step in the long process of achieving a better ranking. You'll have to keep digging for as many relevant keywords as possible and create high-quality content around them.</span></p> <p><span style="font-weight: 400;">The idea is to find questions that include these keywords and answer them to attract a wider audience. The process never stops, as Google demands that you keep adding new, unique content to your website at least every month.</span></p> <ul> <li> <h3><strong><strong>5. On-Site and Off-Site SEO are a Must</strong></strong></h3> </li> </ul> <p><span style="font-weight: 400;">Great content won't be enough to help you optimize your new website's SEO. You have to create every page according to the best SEO practices. That includes both on-site and off-site content.&nbsp;</span></p> <p><span style="font-weight: 400;">Apart from finding the right keywords, you'll also have to come up with the appropriate tags, meta titles, descriptions, and other details that all work together to improve your website's ranking.</span></p> <p><span style="font-weight: 400;">You'll also have to include outbound links to bigger websites and link all internal pages, as well as add social media sharing widgets.</span></p> <p><span style="font-weight: 400;">Expect your SEO efforts to be hard at first, as it takes some time to build a strong backlink strategy. However, if you build a website with a strong architecture coupled with compelling content that shares an expert view on things, it shouldn't be too hard to link up with other high-authority websites and boost your rank.</span></p> <ul> <li> <h3><strong><strong>6. Master the Art of Data Analytics</strong></strong></h3> </li> </ul> <p><span style="font-weight: 400;">Google Analytics will become your best friend that will aid your future website's ranking. That's why you should get familiar with how these tools work and what metrics matter the most.&nbsp;</span></p> <p><span style="font-weight: 400;">It's a good idea to learn the ropes before your website goes live. Google Analytics and similar data analytics tools can give you insight into extremely useful information on customer behavior, conversion rates, the effectiveness of your marketing campaigns, and so on.</span></p> <p><span style="font-weight: 400;">When you know where your website users come from, how much time they spend on different pages, and their bounce rate, you will pinpoint the weak spots in your content and replace them with something more engaging.&nbsp;</span></p> <p><span style="font-weight: 400;">By using other tools, such as heatmaps or overview tools, you will be able to enhance your SEO efforts further, resulting in better website ranking, higher conversion rates, and improved organic traffic.</span></p> <ul> <li> <h3><strong><strong>7. Update Your Strategy According to the Best Practices</strong></strong></h3> </li> </ul> <p><span style="font-weight: 400;">SEO is an ever-evolving practice that never stops. Website owners have to keep testing their pages and optimizing keywords as well as other features constantly.&nbsp;</span></p> <p><span style="font-weight: 400;">You must check the data regularly to identify problems and make necessary changes.&nbsp;</span></p> <p><span style="font-weight: 400;">Staying one step ahead of your competition isn't that easy, so it's a good idea to subscribe to blogs, YouTube channels, and forums where SEO experts share advice and useful tips you can use to improve your website's ranking.</span></p> <ul> <li> <h3><strong><strong>8. Ask Experts for Help</strong></strong></h3> </li> </ul> <p><span style="font-weight: 400;">As you can see, a lot of work and knowledge goes into running a successful website. With other things going on, learning how everything works and applying it to your site won't be easy. The good news is that many digital marketing companies can get your website's SEO for a price.</span></p> <p><span style="font-weight: 400;">We spoke with the CEO of a New York web design company called Digital Silk, and this is what he said:&nbsp;</span></p> <p><span style="font-weight: 400;">"The recent COVID pandemic has changed the rules businesses operate all over the globe. Brick-and-mortar shops and stores keep closing down due to lockdowns, pushing thousands of companies to move their operations online. As a result, the competition has reached a new level making it harder for individuals to keep up with the latest SEO trends. If you want your website to succeed, hiring digital marketing professionals will give you the best chances."</span></p> <p><span style="font-weight: 400;">The process of digitalization is entering its final stages, making SEO efforts even harder. That's why you should consider hiring an expert to guide you through the entire process and boost your website's Google ranking in accordance with the best industry practices.</span></p> <ul> <li> <h2><strong><strong>Final Words</strong></strong></h2> </li> </ul> <p><span style="font-weight: 400;">It takes a lot of time and practice to master SEO, and if you're a beginner, it may seem too complex.&nbsp;</span></p> <p><span style="font-weight: 400;">However, with a little bit of hard work and high-quality website content, you will be able to put together an SEO strategy that will boost your website's ranking.&nbsp;</span></p> <p><span style="font-weight: 400;">As a website owner, you'll have to update your SEO knowledge frequently if you want to stay ahead of your competition. Good luck with your future SEO projects!</span></p>

Google paid search Marketing A Beginner's Guide Google paid search Marketing When you search for something on Google, the first thing you see in search engine results pages (SERPs) will not always be a list of organic websites. It won't always be a SERP (featured snippet or "people also ask" list) either. In fact, there is only one thing that can trump both: advertising(online advertising). online advertising What you see here is the outcome of paid search(online advertising)advertising(online advertising) inquiry showcasing. It very well may be an important strategy in your promoting procedure. But paid search marketing(online advertising) is not as simple as giving Google money to publish your ad(paid search advertising). There are a lot of them, and on schedule, you'll comprehend why paid inquiry is completely helpless before the nature of your site's substance. But first: What is paid search marketing? Paid search marketing (google digital marketing) is any pay-per-click search engine marketing(web marketing) service offered by Google, Bing, and other search engines that allows companies to advertise directly on search results pages. Advertisers bid on the amount they are willing to pay each time a searcher clicks on their ad. This fee is called cost-per-click (CPC)(pay-per-click audit). What is the difference between search engine marketing, search engine marketing (PPC), and paid search, online advertising? Different names for paid request fuse web search device advancing (SEM), search publicizing, paid pursuit promoting, or basically search displaying. You may likewise have heard that paid search, online advertising are utilized reciprocally with pay-per-click (PPC) promoting. For instance, you might discover PPC ads on another advertising(online advertising) channel, such as Facebook or LinkedIn. Just remember that search engine marketing(web marketing) campaigns focus entirely on driving traffic from search engine results pages to your website. What is the qualification between Digital marketing and organic search? Digital marketing experts might utilize a two-dimensional methodology when drawing in rush hour gridlock from web search tools. The primary strategy, portrayed in the past area, utilizes paid advertisement organizations to convey relevant messages within search engine results. The second method uses search engine optimization (SEO) to drive organic traffic - which consists of people who naturally search for and click on links to your website. In this case, you do not pay anything to Google, your content is self-contained. Why use paid search marketing, online advertising? Search ads can help build brand awareness - they are, after all, the first thing a user sees in SERPs. Even though search advertisements have a lower active clicking factor than the initial three natural outcomes, they convert guests at over two times the rate of natural outcomes. Search ads have a higher CTR (3%-5%) than ad networks such as image and paid social networks (about 1%). Paid search ads(online advertising) can be an abbreviation of your product or service pages. They are immune to ad blockers. Short, paid search for a long story gives you a good impact on your profit, providing a higher CTR than any other type of pay-per-click advertising(online advertising) and a stronger average conversion rate than organic search. Paid search marketing examples: The three most normal kinds of paid pursuit promotions that will show up in SERPs are: 1. Paid search listings These text promotions are shown as connections to site pages at the highest point of the SERPs,, and are accompanied by an "ad" disclaimer, title tag, and meta description: Paid search marketing 2. Shopping lists These will generally show up as a sidebar in the SERPs and will show product advertisements that lead straightforwardly to an internet-based retail location. Paid search marketing 3. Local Service Ads google paid advertising Local Service Ads are sponsored listings of services in your area; To display these ads, )google paid advertising(online advertising) must know your location. Unlike shopping and text ads, local service ads operate on a cost-per-lead basis, with the lead calculated as phone calls, reservations, or messages made directly through the ad. How Paid Search Marketing Works Paid Search Marketing Works A glimpse of key terms: Monthly search volume: The number of keyword searches per month. Impression: When your ad is displayed on the page. click: When a client taps on your promotion. Click-through rate (CTR): The percentage of times an impression leads to a click. Conversion: When a user completes the requested action once they reach your ad page. Conversion rate: the percentage of users who visit your page and complete the requested action. Average CPC: The average cost per click. All paid searches begin with the Google Ads program(google paid advertising), formerly known as Google AdWords. (Bing is an option too, but we'll focus on Google ads for the purpose of this guide.)

When it comes to highlighting your online presence, there are several things that you need to put into great consideration also. What happens if actually imply to online marketers? Moreover, the act of establishing your online presence does not simply end by just creating a basic website for your business and/or company. Mostly, if not all, websites have gained success through their online marketing efforts by incorporating the right kind SEO tactics and constantly feeding it with the right elements. It may not provide you with instantaneous positive outcomes, but in due time, it will. The Importance of Website Design There are different factors that lead to a successful online presence. There are various ways to look at the whole standing of your site as well. But before going on any further, let’s focus first on one of the most basic yet important elements that make up your online identity your website design. How exactly important is it? The design of your website can either make or break your business while trying to deliver it. It actually makes a difference on how your target audience views your business or company and potential to turn them into your customers. Developing a website design that has an impressive user interface will result in a much better conversion rate that leads to better business and revenue. How Website Design Becomes an Asset to Business Although it can cost you a substantial amount of money, investing in a website design can generate an outstanding profit for your business. To ensure that your investment works according to your advantage from it, you must hire an efficient website designer who is capable of dealing with the following key points in designing a website: Navigation This is essential especially when your website has so many pages in. It basically includes a well-labelled navigation bar or a menu that shows a list of the different web pages. When the website navigation is developed properly, users can easily explore and understand your website. Settle for simple yet intuitive navigation that can make visitors come back for more info. Content and Visual Elements These also include the choice of font and another kind of details. Such aspects of web design should go along together to deliver an accurate kind message to the audience. In most cases, readers tend to remember the message when it is concise and something that the readers can identify. To avoid that from happening, it is best to streamline the content wherein website designers can easily incorporate the text. However, designers are able to add negative or empty spaces that let the readers’ eyes rest in the middle of their reading. Brand Uniformity Your brand is what sets you apart from your competitors, and it is usually identified in the logo. If your business or company has a unique logo that is placed on all print materials, then all the logo’s elements must be integrated into the business website design for the sake of consistency. It is very important for your target market to recognize your business brand in all types of a medium also. If for instance, there are slight changes in your brand and visual communication, then it can result in confusion among your customers and make them feel that there is something wrong with your business type. Engagement Website pages should have an exceptional layout so that they can appear more appealing to the users and make them want to engage with your page. It needs to feed people’s eyes because the truth is; this is where every engagement will begin from. For this, the need for website design and development is an indispensable factor that should be measured carefully by every website. Organization and Search Engine Optimization It increases the chances of relaying a message to the visitors who can become your customers from the market. Aside from the organization, utilizing the visible areas for the important website details can also improve your search engine optimization or SEO. This happens when you incorporate business-related keywords in the HTML text tag. When search engines like Google, Yahoo, and Bing can crawl on your website, it results in higher search engine placement, which means your website development services become more visible and searchable.

Auto SEO is a quick, simple way to add title, meta keywords, and meta descriptions to your site all at one from a single page.

Simple bashscript that finds pdfpages by keyword and merges the pages into one document

Creates a basic search bar for one HTML page that filters the possible results according to their keywords.

One page script that pulls in last.fm listening history and plays music by grabbing google videos with keywords

This short program will help you to analyze your web page. Currently, this one is available in only the CLI version and can scan the only title, image and meta description and keywords. I'm currently developing an advanced version of it. Follow to get updates. Thank you for everything.

This application uses Jquery to generate buttons in addition to the already supplied ones. The buttons make calls to Giphy to supply the page with 10 gifs matching the keyword.

A search engine that takes keyword queries as input and retrieves a ranked list of relevant results as output. It scraps a few thousand pages from one of the seed Wiki pages and uses Elasticsearch for a full-text search engine.

looking Foe Expert SEO Sydney services is your website ranking for your keywords are you on page one of top search engines for your target keywords ? i offer complete tailored search engine optimisation services website design and internet marketing for small businesses to large local or abroad.

VogueMate is a simple one-page fashion chatbot that provides quick outfit tips based on user inputs. Built with HTML, CSS, and JavaScript, it uses keyword matching to give fashion suggestions for seasons, occasions, and styles. It’s easy to use, responsive, and requires no backend.