I’m thinking about making my buttons optical, so that they never break down. I’ve bought some photo-transistors. I looked up the datasheet on the photo-transistor, and wired up a prototype(running 5 volts) following the recommendation.
So now I’ve got 2 led’s sitting about 1/4" away from each other and when I block the path between them, I get the equivalent of a digital signal. That’s all you need, but I’m going to wire it backwards, and use an inverter to stabilize voltage.
-6 IR LED’s(edit: a high intensity red LED works as well)
-6 photo-transistors(edit: op550a)
-6 470 ohm resistors(in series with the emitter led)
-6 10k ohm resistors(in series with the photo-xstr)
-1 74hc14(hex inverter - schmitt style)
So I’m thinking it should be pretty easy to wire up 6 buttons with optics. The joystick I can’t modify. The start button I don’t really care about.
I’m gonna just leave the microswitch in for feel, since I’m used to that click confirmation.
So…anyone ever modified their shit to become optical? :badboy:
edit: forget about IR emitters, just use high intensity red. Also, I can buy the inverter for something like 50 cents, but you can always just skip that too.