- Joined Mar 6, 2020
the end goal is to activate one button or another, either by sending 12 to the buttons switched wire or with a relay between the buttons wires. the activation must be momentary. The source I want to use is the buzzer on a different product. When it beeps twice in quick succession i want to activate button 1, when it only beeps once I want to activate button two. How might I do this without making things too complicated or spending too much money? I could probably just get an Arduino but they are $20 ish and Ide rather not spend that much. This is also in my car and i would rather something that won't drain my car battery if I'm not careful and can run on 12v. Any help is appreciated.