giuliomoro Good Plan! Thank you.
I originally made a schematic that used all 8 analog inputs (for LFO CV control), but compromised down to 4 to keep the board from getting too big. It is currently sized to be 14HP.
I also broke out a load of digital pins to SMD switches, so that people could hotwire whatever DC stuff they wanted onto the pads, though I wanted to avoid adding too many more through-holes.
Would you have suggested going bigger and having the extra parts, to keep things flexible?
Also, as the SoC is susceptible to voltage on pins pre-boot, I chose to pull unconnected pins to ground.
Do you think I could drive the 1v2 (VCC) circuit off a digital pin (assuming minimal current draw from the JFET inputs of the TL074s), do you think it would be better to make a mechanism to pull the -10V down the ground before startup is complete, and not normal the analog input jacks to ground?