Thanks Phil, nearly got it right then.... I mistook a darkish solder joint for a track cut and had the end of the link to GND shifted to the right by one holePhil_G wrote: ↑03 Jun 2019, 13:19 I think it's a mis-count Max, D2 isn't connected to anything, but gnd is right next to it. All the blue jumpers are gnd. The only thing to watch is the track breaks between the Digispark power pins as they are between adjacent holes. As you say, the DigiSpark Vin isn't used.
Power to the Nano is 12v via the header link seen top-left of the 3rd photo, next to the display header.
If I get time I'll do a layout drawing maybe tonight or soon.
Cheers
Phil
Edit: Done during tea-break! added to 1st post
And, in doing the schematic, I overlooked the link between the battery minus and GND, hence my observation on that.
Cheers,
Max.