I’m picking up a Photon/WS2812B project that I’ve neglected for a few months, and having issues that I hope someone can help with. I’m not much an electronics guy, so it’s probably something silly.
I have a Photon running a short length of 43 WS2812Bs. For now its just a test pattern using the Neopixel library (although I’ve tried FastLED as well). My super professional test setup looks like this: http://i.imgur.com/zh7HgpK.jpg . Pretty simple. Data is connected with a long spliced wire to D3, have a tiny cap on the power because thats a good idea apparently, and a resistor from D3 to nothing (I’ll get to that). The button isn’t anything.
If I run it as is, most of the time it flickers and the colors are wrong, like this: https://gfycat.com/FormalMelodicFallowdeer
If I hold the data line at the splice point, it works great: https://gfycat.com/TestyThunderousBass
There is a splice because I’m going to need the data line to be a foot or two long, and I’ve been testing longer distances.
The resistor is because it’s supposed to be a good idea to put a small resistor on the data line, but if I use it the lights dont change at all.
So, any thoughts on whats wrong, and how I can fix it?