Spinning the rotary encoder cycles through a menu of programs on the 16×2 LCD, and the key map just updates automatically for the chosen program.

It works by using two absolute rotary encoders that each have a whopping 1024 positions available. One encoder is stuck into the South Pole, and it reads the lines of longitude as the user spins ...

It can be programed either using ST-LINK/V2 or Arduino IDE, and is open source & open hardware. This rotary encoder is suitable for integration into projects as a unique user interface, or can be ...