Maybe someone can point me in the right direction on this DIY home project I've been considering. I have a metal mailbox with a magnet to hold the door -- similar to the magnet on kitchen cabinets. I want to replace that magnet with an electromagnet and timer -- both powered by battery. Basically I want the electromagnetic lock to activate at night (say 6pm to 6am) without my intervention.
So what I need is a very small programmable timer that can trip a circuit with the electromagnet. (I think I saw this done with a quartz wrist watch by tapping into the alarm circuit). Any ideas on timers and electromagnets? Tell me if this won't work!
So what I need is a very small programmable timer that can trip a circuit with the electromagnet. (I think I saw this done with a quartz wrist watch by tapping into the alarm circuit). Any ideas on timers and electromagnets? Tell me if this won't work!