[Pete] needed a rotary encoder for one of his project so ... The pattern of outputs is known as Gray Code and can be parsed using a look-up table or with simple logic. This concept is exceedingly ...

There’s a problem with rotary encoders, though: it’s going to use Gray code or something weird, and getting a rotary encoder to work with your code isn’t as easy as a simple button.

All rotary encoders consist of a light source ... encoders often are arranged to produce a binary output called Gray code. The advantage of Gray code over straight binary is that only one bit ...