So the TSR1 is dropping down the 12v input (on the barrel) to 5v for the 5v rails, which indeed powers the pi via the header pins.
So do you do it from the PCB and that generates the Breadboard then? or is that just one directional?
Also I’ve updated it a bit (attached).
Lastly I’ve got that 40pin header on the PCB but it’s not on the breadboard any more, I’ve no idea how that’s happened.
James.
Door Pi.fzz (78.2 KB)