I'm not sure that I understand the difference between the Beagleboard forum 
and the Beaglebone forum, but thought I would try posting here as well.

I have a Beaglebone Blue connected to a GPS module via the GPS micro JST 
connector. I selected this one because it has +5v, which is what is needed 
for my GPS as opposed to 3.3v on the other UARTs. 

The GPS module works correctly, but my issue is I can't power it down. It's 
been suggested that the 5v rail can't be shut down with the battery 
connected, but that seems rather odd to me. The also suggested solution was 
to use a transistor to switch 5v power via a 3.3v GPIO pin. I suppose 
that's a solution but not a very elegant one if the board can be somehow 
configured to power off the 5v rail. It seems like this should be possible, 
albiet not easily accessible. There doesn't seem to be much/any 
documentation available about this at all.

I made a Youtube video showing what's going on;
https://www.youtube.com/watch?v=9xrXKRy97Yk

Any suggestions appreciated, otherwise I think I'm going to have to go down 
the path of the transistor relay...


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