Onkyo Amplifier Mechanical IR Remote

A mechanical remote volume control solution for my older Onkyo Integra amplifier. The wheel presses on top of the volume control knob of the amp. A stepper turns this wheel and thus can change the volume on the receiver. The stepper is controlled by an arduino nano with an attached IR receiver, so any IR remote can be used to control this abomination.

**BOM:**
1x TSOP4838 38 KHz IR Receiver Module
1x 28YBJ-48 Stepper motor
1x ULN2003 Stepper driver
1x Arduino Nano
1x Sponge wheel of appr