Best posts made by Raman

@kowshik1729 it working properly after using a 1N4007 diode

While connecting Arduino with Relay module (Not self made) some times it flickering. May be due to back EMF. How can I avoid this problem.

@kowshik1729 ok i will sent you bro

@kowshik1729 thank sir its not for our project its for our product bro