I'm trying to wire a photo interrupter to 2 wires that I soldered to 2 opposite ends of a button circuit on a game controller. The reason I'm doing this is because I want to use the photo interrupter as a coin slot for my arcade machine. So instead of pressing a button, a coin is passed through the photo interrupter, thus closing the circuit. The photo interrupter has 4 pins but I'm trying to wire it to only 2 wires. What should I do? Thanks for your help.

 

I don't know what photo interruptor that you are using. But in general, I would expect four wires. Two for a light source and two for the sensor. If we are to help, it would be nice to know the specific photo interrupter that you have and it's datasheet.

 

If the circuit you are triggering has only 2 wires, you cannot use a photo interrupter.

The interrupter light source needs constant power, you can make it work if you have another source of DC power available.

This then uses 3 wires-

1) Constant power
2) Switch output
3) Ground.

 

Can i supply another power source like connecting to some batteries?

 

Yes, but why do you ask? Do you know how long the batteries would have to last?

 

Yes, but why do you ask? Do you know how long the batteries would have to last?

I'll just install them whenever I want to use it.is it possible?

 

I'll just install them whenever I want to use it.is it possible?

Yes

 

Yes

Ok how many and what type of batteries do I use? The voltage on a game controller is typically 5v.

 

Once again if you provide a link to a datasheet or part number of the device you are intending to use your queries will be able to answered more quickly. No one is here to steal your ideas.

It's like asking someone how to cook a vegetable, without letting them know the vegetable you are wanting to cook.

Ok sorry the photo interrupter # is HY870P thanks for your help

 

Sorry I'm not good with reading diagrams, can you please just tell me how to connect the batteries to the interrupter?

 

Yeah but the guy in the video is using 6v the controller I'm using is 5v so maybe I need a different setup

 

You can use the same setup.

 

You can use the same setup.

Do I still need to use a ohm resistor? And if so what kind? Also, if the voltage of the controller that I'm wiring the photo interrupter to is 5v, what type of batteries do I use to wire to the other 2 pins and how many?