Bought a tinyduino main board from a local retailer - it was the starter kit that comes with the board, USB and proto board, so it had the bracket on the back to hold batteries. Using this format because of size (making a cat toy) I desoldered the bracket.
Soldered wires to the board at the locations marked here:
While soldering, I slipped and accidentally bridged the + to the SMD component to the left of it in the picture above. I desoldered the bridge and ensured there was no connection. I mention this in case heat damage, or a possible disconnect of the SMD is causing my problem.
The board will not run under the power of 2 LR44's or even 2 AA batteries. Even tried 3 AA's in case 3.1v wasnt enough.
But it runs when plugged into my PC via USB.
Did something break when I messed up the solder (if it did I'd imagine it would NOT run under USB, but it does), or am I doing something wrong? I'm at a total loss here.