I needed a rotary encoder — I pulled a cheap one out of one of those “49 boards for Arduino” kits you see around. Not the finest encoder in the land, I’m sure, but it should do the job.

The quadrature encoder with acceleration would seem easiest, but it still needs coding. My bright (I claim…) idea is to use two potentiometers connected to two analogue arduino inputs (method below), ...

Arduino sent over one of the first boards ... I2C, UART, reading a quadrature encoder, and NeoPixel. There’s also a few headers that don’t exist (and presumably won’t get the define to ...

Typical encoder output, a series of quadrature signals, consists of two full square Encoders are widely used to help control machine position and speed. Typical encoder output, a series of ...

If you are a novice to rotary encoders for human-machine interface, there is a potential pit-fall. Otherwise called quadrature encoders, they deliver two-bit gray-scale binary on rotation, with the ...