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 ...

Absolute encoders have an encoder disc which has marks or slots on a power-transmission shaft and a stationary pickup. The disc records a unique code for each shaft position.

Posted in how-to Tagged gray code, rotary encoder ← Arietta G25 Has Us Wondering Where ARM Boards Are Going Making A Speaker With Resin, Magnets, And Wire → ...

A new combined interface for Optocode absolute rotary encoders allows simultaneous communication of both absolute and incremental rotary position data.