Nanovolt scanner with rotary switches, first draft for experimentation only
Inspired by https://dataproof.com/Publications/NBS430.PDF https://iopscience.iop.org/article/10.1088/0957-0233/24/2/025008
Python software example https://github.com/marcoreps/multiinstrumentalist/blob/11b641b6d90bda38c73909955b253200de4179e4/main.py#L624