NodeMCUexp_v1 board


Power supply : 220V (with insulated CC/DC 5V HI-LINK on board) or 5V by USB

Inputs :

3x DS18B20 (temperature)

4x I2C

1X HC-04 ultrasonic

1x relay 220V on board

1x serial TTL (TX/RX) : solder 2 wires on TX/RX (for DWIN display for example)


Schematic and implantation+ BOM are provided in project description.


Enjoy !

;-)