EncoderTool

EncoderTool is a library to manage and read out rotary encoders with Teensy ARM boards.

Key features

Supports directly connected and multiplexed encoders
Supports all common types of encoders, i.e., full (no detents, 4 counts per period), half (two detents and two counts per period) and quarter (1 detent and one count per period) and some variants of those.
A callback mechanism allows for easy event based menu systems. Callbacks use std::function and can call non static member functions.
Fully bounce free without additional hardware
Provides hard and cyclic count limits
Supports and debounces encoder push buttons. Callback for notification of button events available
Currently 74165 and 4067 based multiplexers are supported but the class structure allows for easy extension to any other multiplexer.
Schematics and Eagle files for multiplexed encoders available in the Extras folder