Just managed to add a ESP32 to my dehumidifier to allow me to turn it on and off using home assistant.

I added two cables to the RX and TX lines and could see and send data over uart.

Working on getting the humidity values from the sensor next. I was suppriesed how easy it was to read the data off.

Full write up coming soon.

#hardware #esp32 #homeassistant #hardwarehacking