Rep counter
No I don't have one, I found a couple that wasn't very good and I couldn't figure out how to modify them so I moved on. I have typed so many things in to google I can't remember where I found them at. That's why I am posting here, it looked like one of the best forums during my search for the needle in the haystack.
What I need is a rep counter I can preset a number(3 digit) in, have it count down and trigger a relay at 0. I have a 555 one shot timer that I am hooking up to limit switches for the trigger but all of the counting circuits I can find (that I can understand)only go up with no preset and relay. I was hoping that someone had done something similar and could hook me up with a schematic.