good day, i am doing a project for controling an electric fan using arduino and a keyes 5v relay module , but i dont know how to wire the connection of the fan to the relay module. I want to control the speed of the fan, how will i wire the connections of it to the reley module? thanks
Is it mains fan? Does the fan have a speed switch? If it's a mains fan without speed switch you're not able to control the speed with a relay.