mqtt-volume-control

A simple mqtt client to control audio volume. I build this to fit my own use case. Maybe it's of use to others.

What this project does:

• Control and report back audio volume levels using mqtt
• Control alsa mixer levels
• Control PT2259 based digital potentiometer over i2c
• Make it work with my Home Assistant setup. https://www.home-assistant.io

I used this project for inspiration: https://github.com/Thyraz/snips-volume

Some C code examples for the PT2259 chip: https://forum.arduino.cc/index.php?topic=543100.0

The PT2259 datasheet: http://www.wlxmall.com/images/item_pdf_new/20180427/L20173131/PT2259-S-en.pdf