Alternative firmware for ESP8266 and ESP32 based devices with easy configuration using webUI, OTA updates, automation using timers or rules, expandability and entirely local control over MQTT, HTTP, Serial or KNX. Full documentation at

Control WS2812B and many more types of digital RGB LEDs with an ESP32 over WiFi!

ESP8266 core for Arduino

Affordable WiFi hacking platform for testing and learning

ESPHome is a system to control your ESP32, ESP8266, BK72xx, RP2040 by simple yet powerful configuration files and control them remotely through Home Automation systems.

A suite of WiFi/Bluetooth offensive and defensive tools for the ESP32

Your Gateway to Embedded Software Development Excellence :alien:

Lua based interactive firmware for ESP8266, ESP8285 and ESP32

ESP8266 WiFi Connection manager with web captive portal

📟 JSON library for Arduino and embedded C++. Simple and efficient.

A full functional WiFi Repeater (correctly: a WiFi NAT Router)

A collection of scripts to flash Tuya IoT devices to alternative firmwares

An IoT Solution,Blinker library for embedded hardware. Works with Arduino R4, ESP32.

High Performance Open Source Radio Control Link

Arduino and PlatformIO IDE compatible TFT library optimised for the Raspberry Pi Pico (RP2040), STM32, ESP8266 and ESP32 that supports different driver chips

An IoT Solution,Blinker library for embedded hardware. Works with ESP8266, ESP32 (idf)

Async Web Server for ESP8266 and ESP32

MQTT gateway for ESP8266 or ESP32 with bidirectional 433mhz/315mhz/868mhz, Infrared communications, BLE, Bluetooth, beacons detection, mi flora, mi jia, LYWSD02, LYWSD03MMC, Mi Scale, TPMS, BBQ thermometer compatibility & LoRa.

Blynk library for IoT boards. Works with Arduino, ESP32, ESP8266, Raspberry Pi, Particle, ARM Mbed, etc.

Latest ESP8266 SDK based on FreeRTOS, esp-idf style.

Easy MultiSensor device based on ESP8266/ESP32

Infrared remote library for ESP8266/ESP32: send and receive infrared signals with multiple protocols. Based on: https://github.com/shirriff/Arduino-IRremote/

Home automation firmware for ESP8266-based devices

esp8266 wifi-serial bridge, outbound TCP, and arduino/AVR/LPC/NXP programmer

Advanced firmware to add native Apple HomeKit and custom configurations, compatible with any SoC based on ESP32, ESP32-S, ESP32-C and ESP8266 series. (Shelly, Sonoff, Electrodragon, Tuya...)

Wireless keystroke injection attack platform

:musical_note: :rainbow: Real-time LED strip music visualization using Python and the ESP8266 or Raspberry Pi

PJON (Padded Jittering Operative Network) is an experimental, arduino-compatible, multi-master, multi-media network protocol.

Mongoose OS - an IoT Firmware Development Framework. Supported microcontrollers: ESP32, ESP8266, CC3220, CC3200, STM32F4, STM32L4, STM32F7. Amazon AWS IoT, Microsoft Azure, Google IoT Core integrated. Code in C or JavaScript.

Universal wireless communication library for embedded devices