[Hugatry] wanted to replace the adjustment pot on an LM2596 buck converter with a microprocessor-controlled voltage. The regulator IC uses a divider to generate a 1.25V reference from the output. T… ...

Microcontrollers tend to be cheap, small, and very power efficient. As you can see in the picture above, the Pico 2 W has dozens of input and output pins on the sides (the small yellow holes all ...