Arduino Nano V3 case w/3-pin WS2811/WS2812b plug

thingiverse

This is a straightforward build for an Arduino Nano V3 with an opening for a 3-pin connector. It enables a very compact WS2811 light controller that can easily fit in your pocket or under your shirt for DIY LED garments. The measurements are 50x23x15mm without the plug installed. The holes on top are for the LED status lights. If you want proper lighting guides, cut off lock pins from four RJ45 connectors and push them in from underneath. As shown, it works well. One Arduino Nano can power 100 WS2811 LEDs solely using USB power, except if you run them at 255,255,255 color with 255 brightness for extended periods. Designed in Sketchup and exported to STL, just run it through your preferred slicer and you're ready to go. Be cautious while pressing the Arduino into the plastic clips when printing it in PLA. You may need to trim some of your PCB if you have a Chinese clone, as they tend to vary slightly in size.