So I’m building a prototype of this cube LED thing. I solder on a section of 4 LEDs, test it, it works. Put on 4 more, test it, it works. Rinse and repeat. I’m down to 2 more segments and then bam, the newly added LEDs don’t turn on. This can be seen in the picture on the right vertical part.
I get my voltmeter out and start poking around and I think I figured out what happened. It looks like the voltage of the data line has gone down from .7V at the beginning to .08V at the strip that won’t turn on. I have a level shifter chip that should be supplying a 5V data signal but maybe the voltmeter doesn’t read it properly since it’s a signal line, idk. It looks like the data line drops about .08 - .1 volts as it goes through 4 LEDs on each side of the cube.
Does this sound right to you guys? I guess I have to run another data line for these last 2 sides?
edit: ws2812b LEDs btw