A fun fidget thing made with Arduino IDE with Neopixels - Ordinary3/Rotary-Encoder-NeoPixel-Fidget ...

Arduino UNO R3 + NeoPixel ring + Rotary Encoder = Something Nice Learn how to use NeoPixel rings with Arduino UNO and a rotary encoder. NeoPixels are great, because you need only one data wire to ...

The main components are the Adafruit Trinket M0 microcontroller and the EC11 rotary encoder itself. To provide nice visual feedback he added in a NeoPixel ring, but that’s not strictly necessary ...