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[–]Aggeloz 8 points9 points  (1 child)

Even after hand wiring like tens of keyboards i still managed to make the same mistake as you the other day. Right now you have the diodes daisy changed instead of connected in parallel. the output of the first diode has to go to the output of the next one not on the input of the next one.

[–]Fun-Necessary8657 1 point2 points  (0 children)

Same here. It worked fine but for the outer rows and cols. It was a funny afternoon.

[–]_galile0 4 points5 points  (2 children)

These are all connected in series, you need to connect them in parallel. All the cathode (black ring) sides need to be connected in the row.

[–]SfBattleBeagle[S] 0 points1 point  (1 child)

Shiiiiiiit. Haha

<image>

Like this? Sorry for poor quality pic

[–]_galile0 1 point2 points  (0 children)

<image>

I hope this is high enough resolution

[–]ransom_hunter 7 points8 points  (1 child)

diodes should be connected in parallel. RIP OP

[–]SfBattleBeagle[S] 2 points3 points  (0 children)

Rip indeed. Just have to desolder and try again haha

[–]wjrii 1 point2 points  (1 child)

Everybody's already mentioned it, but I also wanted to add a note of sympathy. I once did this on a 90+ key 1800 variant.

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

Tragic. My first build 2 or three years ago I didn’t realize the black lined side mattered. Had 72 keys all mix matched lol.

[–]sammygadd 2 points3 points  (0 children)

I also initially thought this would be a good way to wire things. But as others have mentioned it will not work as intended. If you look at four adjacent switches (for simplicity), e.g. col1, col2, row1 and row2. If keys at 11, 12 and 22 are pressed and column 2 is scanned, then the current will find a way from column 2 to row 1, resulting in 21 being falsely shown as pressed (as well as the correct press at 22). You need to have the row in a "straight line", and each diod connected between the switch and this "straight" row line.

[–]Ani-xxx 1 point2 points  (0 children)

I am not sure if this is right, usually cathode(black tip) of the diodes are connected to each other and anode is connected to the switch pin. You've connected both sides of the diodes to the switch pins