Much like the Instructable that inspired him, [Markus] used a Digispark board and a rotary encoder. The color comes from a WS2812 LED ring that ... built around a bare ATtiny85 (which is the ...
The board running [designer2k2]’s project is a Digispark, a USB powered board by Digistump which contains an ATtiny85. The LEDs, four different sized NeoPixel rings, plus a single pixel for the ...