Actually I think I was recommended a PLC type of thing, do you guys mean like a PIC microcontroller?
Theirs got to be a simpler way to get a 15 second count down timer. What about a digital timer, something like these, and split it part to find the beeper or what ever and hook that to a...
well, I might be in over my head.
My only experience with this stuff is a 4 credit college course in digital electronics, I thought it was in depth stuff.
I don't know what a optoisolator is, or a pullup resistor is. And we never played with microcontrollers. I think someone recommended...
Guys,
I need a simple timer that will count down from 1-20 seconds and then have a continuous output of high to run a electric motor. And time can easily be adjusted (potentiometer?)
Ive been playing with 555 timers and timer circuits from diagrams of "555 timer" through google, but...