I'm building a saber carrier for a Nightbrother hilt from Watto's Junkyard. After I connected power to my Prizm 5.5, I methodically built my carrier one circuit at a time. I tested the functionality of each item I added, before moving on to solder another item. My switches and speaker were connected and working fine, even the power-on LED connected to the 3.3V pad worked as the manual indicated. I plugged in my charger to bring my KeepPower 26650 to a full charge. Things seemed good!
I then set my pixel count on the SD card (to 127), and soldered the ground and data wires for the Neopixel PCB connector to the board. Everything seemed fine, so I plugged in the blade and powered up the saber.
My switches and speaker worked fine, but the blade lit erratically. I could easily switch fonts and colors, as well as activate FOC and AccuBolt. I assumed the blade was lighting erratically because I had overlooked that the ls0 and ls1 settings were configured for WS2812. I adjusted the SD card's ls0 and ls1 settings for my SK6812, and tried the blade again. The LEDs still lit erratically.
That's when I noticed that my power-on LED was no longer staying lit. I'm not sure WHEN it started blinking, but I know it was after trying to power the blade.
I have de-soldered the blade ground and data wires from the Prizm 5.5, but the power-on LED still starts blinking shortly after the kill switch is removed. Every other feature of the board works fine, except I don't have a working blade or the solidly lit power-on LED.
Can anyone advise of any troubleshooting tips I can follow? I searched for a troubleshooting guide, but didn't find one. Perhaps I overlooked it. I'm grateful for any guidance! I'm concerned the saber-lighting portion of this board is fried. I have a second carrier to build and want to ensure I don't fry my second board, as well.
Thank you for reading!