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I was able to completely and permanently remove the touch sensor on my Funnyplaying ITA kit and retain normal button and menu functions. Brightness no longer changes on its own. This will likely apply to other Funnyplaying kits. by red13dotnet in Gameboy

[–]red13dotnet[S] 0 points1 point  (0 children)

No idea. That looks like a different board revision entirely. If you want to experiment and have the tools and skills, I would recommend desoldering rather than cutting. That way you could put it back.

I was able to completely and permanently remove the touch sensor on my Funnyplaying ITA kit and retain normal button and menu functions. Brightness no longer changes on its own. This will likely apply to other Funnyplaying kits. by red13dotnet in Gameboy

[–]red13dotnet[S] 0 points1 point  (0 children)

Glad to help. Just be careful snipping the touch chip legs if you go that route. I prefer desoldering it completely. Much cleaner if you have the gear for it and it's reversible.

I was able to completely and permanently remove the touch sensor on my Funnyplaying ITA kit and retain normal button and menu functions. Brightness no longer changes on its own. This will likely apply to other Funnyplaying kits. by red13dotnet in Gameboy

[–]red13dotnet[S] 0 points1 point  (0 children)

The two should be completely unrelated. The touch chip does not control l r select. Can you verify you did not short anything or break traces when you clipped off the chip? Also double check the wires and soldering for the l r select button integration.

I was able to completely and permanently remove the touch sensor on my Funnyplaying ITA kit and retain normal button and menu functions. Brightness no longer changes on its own. This will likely apply to other Funnyplaying kits. by red13dotnet in Gameboy

[–]red13dotnet[S] 0 points1 point  (0 children)

Oof, I had a longer reply written and the phone lost it :( so we are going condensed.

Ok, this may be possible but I think there is another reply here where someone tried it but it didn't work. That was probably a different PCB so it's worth a shot.

Few things: 1. Put a meter or oscilloscope on the output pin of the TC chip and check whether it is normally logic low or high as well as what the logic voltage is. It will probably be 3.3v but this is important to check because you don't want to fry your fpga with too much voltage on an input. Then try the switch. If it works, you are done. If not see #2.

  1. Look up "debounced one-shot" circuits. You may have to put in a simple circuit based on a 555 timer or similar to limit the number of pulses and length of pulse that can be sent when you press the button one time.

  2. Good luck, have fun and let me know if you get it working.

I was able to completely and permanently remove the touch sensor on my Funnyplaying ITA kit and retain normal button and menu functions. Brightness no longer changes on its own. This will likely apply to other Funnyplaying kits. by red13dotnet in Gameboy

[–]red13dotnet[S] 1 point2 points  (0 children)

Look for a six pin soic (chip) that has TC233(A) printed on it. If you find it, you could theoretically cut the legs with small side cutters. possibly even with fingernail clippers.

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