A FreeRTOS-based IoT project performing local FFT analysis and adaptive sampling on the Heltec WiFi LoRa V3 board, with MQTT & LoRaWAN communication.

An ESP32-based IoT application for adaptive data sampling, FFT analysis, and statistical aggregation. Publishes results via MQTT over WiFi to AWS IoT Core and via LoRaWAN (TTN), with FreeRTOS task management, deep sleep for power efficiency, and Grafana visualization support.