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

sourcecode for reading sensor data

Full RGB LED matrix, based on an ESP32 and WS2812B LEDs.

ESP8266 MQTT Roomba controller (Useful for hooking up old Roombas to Home Assistant)

ESP8266 based bidirectional bridge between MQTT and IR (change MQTT message to IR signal and change received IR signal to MQTT message)

Arduino I2C scanner that scans all addresses at multiple speeds.