Contribute to M0LTE/arduino-relay-control development by creating an account on GitHub. ... Connect to the Arduino's serial port with 9600 baud; Issue commands like 'r31' to turn relay 3 on, 'r00' to ...

Connect the relay module’s VCC to the 5V pin on the Arduino. Connect the relay module’s GND to the GND pin on the Arduino. Connect the relay module’s Signal (S) pin to Digital Pin 7 on the Arduino.

Simply connect the moisture sensor and the water pump (through the relay) to the Nano RP2040 Connect board, insert the moisture sensor in a flower pot, and put the pump in a recipient filled with ...

A new project has been published to the Hackster.io website providing a complete tutorial on how to build your very own Raspberry Pi smart garden complete with an Arduino connection to help ...