Relay with arduino/microcontroller, diode needed? - Electrical Engineering Stack Exchange
Conecting a relay - General Electronics - Arduino Forum
arduino - Where to put the Flyback Diode in a Relay Module? - Electrical Engineering Stack Exchange
Relay for Arduino - General Electronics - Arduino Forum
Flyback diodes and why you need them - General Electronics - Arduino Forum
Are flyback diodes needed in my circuit ? - General Electronics - Arduino Forum
Where would I add a diode on this relay to mitigate fly back EMF? This project is an automatic plant waterer using a capacitor soil moisture sensor along with a simple small