This is my first post so I'm going to try to explain my problem the best I can.
I need a circuit that will trigger 20-30 seconds after the switch is open. I considered using NOT gate and then normal RC delay but I think that would consume more power than just using better circuit. If this could be powered by 5v 500mA it would be great because I already have phone charger like that but 5,6,9,12 or 220 V is fine.
I need a circuit that will trigger 20-30 seconds after the switch is open. I considered using NOT gate and then normal RC delay but I think that would consume more power than just using better circuit. If this could be powered by 5v 500mA it would be great because I already have phone charger like that but 5,6,9,12 or 220 V is fine.