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Audio input switch and volume control device firmware

This repository contains MCU firmware for a device which can be used to switch between multiple audio inputs and control volume using an IR remote controller.

The project electronics are custom designed and include, among other things:

  • A PIC16F15344 microcontroller
  • Analog MUX circuitry for input selection
  • A motor controller potentiometer for volume control
  • MOSFET H-bridge motor driver for controlling the potentiometer
  • An IR receiver for remote control

Copyright Eero Talus 2022

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