Real rotary position encoders use Gray code to prevent slight misalignments ... If you look closely at a rotary encoder disk, you can see the pattern. The wheel has eight pie slices.

That means that any time you want to, you can read the encoder pins and get the correct positon without having to always keep track. Wikipedia has a great Gray Code Page for those who want to deep ...

Arduino library for reading rotary encoders that output a 2-bit gray code. Rotary r = Rotary(2, 3); void setup() { r.begin(); } void loop() { result = r.process(); if ...

Absolute encoders contain multiple detectors and up to 20 tracks of segment patterns. For each encoder ... to produce a binary output called Gray code. The advantage of Gray code over straight ...

An absolute encoder utilizes a code disc with probably a unique pattern or an absolute scale either in binary or Gray code. One of these detects changes in the disk or scale. As it concerns the type ...

Abstract: A slight increase in the physical dimensions of the single-track gray code (STGC) encoders in exchange for using fewer reading heads (fewer bits) is the subject that is addressed in this ...

(Click here to download the file from DI-SIG, #2048.) Designed for the 2-bit gray-code encoder sequence (Figure 1b), using a table to provide the state-sequence processing allows you to modify the ...