I bought a Universal video poker machine but it didn't have a motherboard in it. It seemed to have everything else so I figured I'd just connect all the peripherals to a PC and run poker software. Been a fun project so far but requires me to reverse engineer everything.
Anyone know how the coin comparators work? It's the grey U shaped ones and says "U-87P". It has three wires coming off, I assume one is power, one ground, and one signal. I'm not sure if the power would be 5V, 3.3V, or something weird. I assume the signal is 0V with no coin passing through and matches power voltage when a coin is there.
It's got a high speed hopper in there with 8 wires coming out which I think I lack the patience to reverse engineer
but if anyone has an owner's manual for the machine I'd love a copy!