Some code from playing around with getting a menu, or set of menus, to work by using a rotary encoder.

The output of this is very specifically for a 128x32 OLED display that uses the SSD1306 chip.

This uses the Adafruit_SSD1306 library (or, at least, I took the files I wanted to use and modified them to only be specifically about a 128x32 display using IC2) as well as RPi.GPIO and PIL for drawing the display image.