Home-Assistant-Water-Tank-Level-Indicator-Using-Arduino-and-MQTT

I have been using this project to measure sump (under ground) water tank water level with NodeMCU and ultrasonic sensor, implemented using Arduino, MQTT and Home Assistant

Home-Assistant-4-Channel-Relay-With-Physical-Button-Using-Arduino-and-MQTT

4 channel relay with physical button control, implemented using Arduino, NodeMCU, MQTT and Home Assistant