Corner Case: 90-deg turns for WS2812 josh.com NeoCorner from josh.com If you’re working with the WS2812B and need to turn corners, you’ll want to check out this NeoPixel Corner adapter PCB from josh.com. It’s a pretty simple board. I came across it as a solution for an upcoming lighting project. In josh’s example, he used a CNC to mill the PCBs. If you’re using one-sided FR4, that might work well. You’ll want to double-check thicknesses if you want to use OSHPark or similar. You can check out the full write-up here or the NeoPixel Corner Board project GitHub. On a related link, this document explains differences between WS2812 and WS2812B.