I’ve noticed most references to the core socket pin functions are reversed and hence don’t match core pinouts of the Pico/Pico2 etc when viewed from the socket/core front itself. So here it is reversed and reduced…
As time goes by I intend to add notes as to where pins go, which I/O are totally free etc. I did note the 3.3V out was 0.9% low with two full batteries so an external quality voltage reference needed for more accurate A-D measurements.
NOTE I TAKE NO RESPONSIBILITY FOR ERRORS IN THIS DIAGRAM OR WITHIN THE NOTES OF THIS POST. USE AT YOUR OWN RISK.