well, I have some problems with one of mine LoRa Node 151’s.
I looks like that the LiSOCl2 and USB(external power) switching is not working
correctly. Perhaps some kind of loosen solder point.
Is the a schematic available for that board ? The supply switching part will be enough
and do the thing.
After inserting a LiSOCl2-battery and disconnecting the USB-cable there is no
powersupply at all. The positive connection is ok - so i think the switching is done on the
negative part, and there might be the problem.