ErgoMechKeyboards @lemmy.world Psaldorn @lemmy.world 1y ago

Sofle RGB LED question

Hi, I'm in the process of soldering up a left and right sofle v2.1 deck, but for both after following the wiring guide I get to the final led and it doesn't work (indicator, backlights and all per key lights work, bar the final per key light)

Is this expected? Solder looks good but I was thinking there might need to be something else done to complete the last led in the chain? Or just unlucky that this has happened at the end of both. I've replaced the LEDs twice and used same process as all the other LEDs. I don't want to add all the diodes and sockets only to have to start again. Now I've replaced and resoldered a few times I'm worried about PCB integrity. These are my 5th and 6th boards 😖😔

2 comments

I had to set this in my config.h (qmk firmware) to have all the LEDs light up:

#define RGBLED_NUM 72 #define RGBLED_SPLIT \ { 36, 36 }

While the standard Sofle RGB only has 70 LEDs defined.
When one of these lights doesnt work, it's often the previous light in the series that's not fully connected. That being said, the fact that you have the same issue on both halves suggests the possibility that they are not being signaled in the firmware. I'd check both.