I am trying to make my own coin op machines. I am new to electronics and this is a bit harder for me. The big problem I have is having a circuit timed to stop after turning on as well as accepting money. I had a friend make a schematic of one and I am not sure it will work I think he misunderstood me. I am looking to do a couple of different things. I was wondering if a momentary switch would work or one of those little push button type things and have the coin directed to fall on it or a attached thing to hit it to start. Then the other problem is time. The schematic he made should give me a set time but for some other ones I want to make I wondered if I could use a timer schematic from a 555 using a pot. and add to the rest of the schematic to make the thing work but for a certain duration when it was turned on.
So ultimatley I need to know:
1. How to get something falling to start the machine.
2. How to limit the machine to work for a short time.
3. Also once it is off to be able to start up again.
I have attached my schematic for a love tester machine my friend helped make it should have the time part solved but turning on and off from a coin he used a microswitch and not sure if that is right. If it is let me know. I still have some other things I want to make too which will need help with a timer of some kind.
So ultimatley I need to know:
1. How to get something falling to start the machine.
2. How to limit the machine to work for a short time.
3. Also once it is off to be able to start up again.
I have attached my schematic for a love tester machine my friend helped make it should have the time part solved but turning on and off from a coin he used a microswitch and not sure if that is right. If it is let me know. I still have some other things I want to make too which will need help with a timer of some kind.