Current raw encoder position (counts). Current angle normalized between 0° and 360° (or -360° to +360° depending on interpretation, here it's cumulative then normalized). Total accumulated angle since ...

In Arduino IDE menu, go to Sketch -> Include Libray -> Add .ZIP Library... and then select the zipped library. After including it, you can add the include headers to your current sketch with Sketch -> ...

Ecology is a strange discipline. At its most basic, it’s the study of how living things interact with their environment. It doesn’t so much seek to explain how life works, but rather how lives work ...