You could try replacing the pot with this board: https://cdn-learn.adafruit.com/downloads/pdf/ds3502-i2c-potentiometer.pdf https://cdn-learn.adafruit.com/downl

You could try replacing the pot with this board: https://cdn-learn.adafruit.com/downloads/pdf/ds3502-i2c-potentiometer.pdf https://cdn-learn.adafruit.com/downloads/pdf/ds3502-i2c-pote... I pick this one because it has a good guide to go with it... but this digital pot is a different value. It's 10K ohms, and the one on the board is 2K ohms. Even so, it might work (it depends on the circuit). You need to remove the pot, and connect the RL, RW, and RH pins from the board to the pot pins.