I'm trying to make a simple circuit module that i can tie into an already existing push button switch that will turn ON/OFF an external relay. I've looked into getting a latching relay for the task but i can't find anything that match's my needs.
Its a 12v relay that I'm trying to activate with a 5v signal from the push button switch. When i push the button i want it too turn the relay on and hold it on. When I push the button again i want it too turn the relay off. Rinse and repeat.
It seems like a simple task but i can't figure out what I need to make it happen. I'd also like to try and make this as cheap and RadioShack friendly as i can.
Does anyone think they can give me a hand? I would be greatly appreciative.
What about a little relay logic? Have a look at the attached circuit. It works (I hope it works) with a clean switch contact; if you only have the switched 5V signal, then use an additional 5V relay to provide the clean switch contact.
Ya... the switch i'm required to use is already in place and thats half the problem. Its a two pole switch that when pressed makes contact between the sig wires and tells the controler that the button has been pushed. It may be easier to just swap the operating voltage to 12v so that i don't get any odd side effects from the controller.
Now i liked Mike2545's idea... i'm not 100% sure how i would have to wire in the entire thing and if it would work for a 12v line as well.