v32

23

10-Dec-2020

15. Adding a Rotary Encoder

The following section shows the recommended pins / GPIO to use when adding a Rotary Encoder

(physical volume control). Sample software is available on our GitHub page:

www.github.com/iqaudio/tools) that converts physical rotation to ALSA audio volume commands.

With the rotary encoder shaft facing you and pins facing downwards:

RIGHT Pin

-> GPIO 24

(Pi pin 16)

CENTRE Pin

-> Ground

(Pi pin 14)

LEFT Pin

-> GPIO 23

(Pi pin 18)