arnlen / relay_control_from_serial

Arduino: Control relay switch based on serial data input

Arduino: Control relay switch

Goal: Switch a relay based on data received on the serial port.

How to use it?

• Connect the relay to the PIN #7 of your Arduino
• Connect your Arduino with serial to your computer
• Send 0 or 1 on the serial port to switch the relay from one position to the other (on/off).

Why this?

I need to control motors connected to my Arduino, from my Raspberry. The relay is a first step into that direction.