Button Wiring Question?

billybob2236

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I just purchases a Game king 188 in 1, I wanted to create a Game Select button. You access the game selection menu by pressing 1 and 2 Player start for 3 secs. If I tie both wires to the one button, every time I press player 1 or 2 both trigger due to being connected through the "Game Select" button terminal. I should be able to use 2 diodes to fix this right?

Wired like so
Now can I use any diodes I have laying around or do they have to be specific? Can I rob them from something? bad Power supply of bad PCB?

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I tested it with electrical tape but it didnt work, but then I soldered the diodes in just like my diagram and then it worked.

Works great.

-Jake
 
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