Arbitrary function generator

This a modified version of an instructables by user Wolf2018:

https://www.instructables.com/Poor-Mans-Waveform-Generator-Based-on-RP2040-Raspb/

I added a 1K potentiometer in series with two 220ohm resistors in order to add offset to the function generator.

one end is connected to +12v and the other end to -12v.

the middle poimt of potemtiometer is connected between R30 and C12.

Note that this will not work well with bigger loads and very high frequentcies :(