This is my third neopixel build using TCSS neopixel strips (2) and the wiring setup posted by TCSS. I have wired and re-wired this setup and cannot get the blade to work in either of the other two sabers I built using the same setup. I replaced the PCB (even using a TCSS pre-soldered resistor just to be sure). Can anyone share how I can bench test the setup of the pcb to be sure the resistor is soldered correctly and that the LED strips are working?

I would add that as I write this, I realized that the LED strip is about 12 LEDS longer than either of the other two sabers, so do I need to tell the board a new length to test this longer blade?

Thanks in advance for any advice!