PCB test

New PCB arrived, first test to (not) let the magic smoke out worked.

I’ll probably do another revision to add space for a zener diode on the board input just in case(tm), and an on/off switch, and move the 3.3v, 5v, gnd to a separate pin header than the gpio’s, and maybe finalize the SD card pins, but it works, and i’m happy(ish).