Hi,
I made a circuit for a simple serial temperature system, it worked on the breadboard, but something has gone wrong since.
Before I apply power to the board I have 4.3V (3xAA), when I apply power the voltage drops to 2.5 and keeps dropping, I added a LED to see if it worked, and it dosent.
-So im guessing its a short circuit right ?
The "diagram" is here
I have tested the connections from the jack (bottom right) and they look ok, however several places in the circuit where traces shouldnt be connected together I get 5MOhm+ instead of a O.L. on my meter, is this ok ? VDC+ to VDC- gives 11MOhm in disconnected state.
I checked the solder and traces and it looks ok, is there some mistake in my diagram ?
Thanks, Jan