angelic_knight
TTyperactive.xyz
•Created by angelic_knight on 3/17/2025 in #🛟-help
Column isn't working - low voltage
I built a chocofly v3 with a nice!nano v2 and it was working, with all the keys functioning. Then the right most column of the matrix stopped working (so physically, the two rightmost columns of keys).
The pin for that column reads 2.3v over GND while the other columns read 3.3v.
I've tried a few things:
I poked around with a multimeter to try to verify continuity, diode directions, etc.
The most significant thing was using firmware to swap the column pin to use a different IO pin (the middle center one). After doing this, without bridging the pin to the matrix, it read 3.3v above GND. After bridging it to the matrix (via the original pin), it read 2.3v like the original pin did.
Here's my firmware repo:
https://github.com/angelic-knight/chocofly-zmk-config
Does anyone have suggestions on what to try next?
Maybe I should try to bridge to the matrix without using the original pin in case that pin is leaking within the nice!nano?
Do you think that getting a different nice!nano might resolve this, or do you think my issue is with the components on the PCB?
4 replies