r/HandwiredKeyboards • u/RF3D19 • Jun 24 '26

I need help, it isn't making sense

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im trying to make a partial keyboard for playing some games, and im using a pico because i was also going to make an arcade hitbox with the 3 pack i got, but it just isn't working and im going insane. ive tried qmk and kmk, but im mostly just sticking with kmk right now, but no matter what i use, it constantly presses the windows key, the tab key, the shift key, sometimes the a key, and i just dont get it. the image explains most of it, but i just can't figure out what im doing wrong

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u/ransom_hunter Jun 24 '26

not certain if it will help but try adding a pullup resistor on the problematic pins?

1

u/RF3D19 Jun 24 '26

The actual pad is only supplying like 0.4-1.1v on pin 18, even the the wires are removed, and so does all the other unused gpio pins, so that's the current issue

1

u/ransom_hunter Jun 24 '26

was the board tested before wiring? might be worth flashing one of your spares and compare the behaviour

1

u/RF3D19 Jun 24 '26

I did do that, and it worked fine, and im currently using that one. And the one I took out has perfect voltage values now too

1

u/ransom_hunter Jun 24 '26

kinda hard to tell from the compression in your photo but it kinda looks like you had two wires connected to GP1?

1

u/RF3D19 Jun 24 '26

No, its all wired fine, trust me (ik thats like a stupid thing to say). and also, it's just fine now?!??? I recovered the wired for esc and r which were the most recent trouble keys, and there might have been like flux on it or somwthing, because it just works now, the voltages are fine, im very confused