This Arduino lights dimmer project is based on Doug Hitchcock’s comment: “I need to have a lamp dimmer that can “cascade” from one lamp to the next (up to 4 lamps). Basically, when you close a switch, ...

I want to monitor the rotation of a 3 phase supply, 400v. So what I really want to do to have an Arduino control a couple of 750w 3 phase motors. First I must determine which direction the motor(s) ...