Hi Seth, I really appreciate the reply. I was afraid of that. My GPS module requires +5v. Is there another +5v source on the board that is switched off when the board powers down? What about the black power connector above the GPS UART port?
Otherwise it looks like I will be building a resistor circuit and triggering it from a GPIO pin. On Saturday, February 9, 2019 at 11:07:14 PM UTC-6, Mala Dies wrote: > > Sir, > > Seth here. I just got done dealing w/ someone on this subject. The 5v pin > from the GPS connection cannot be "un"powered. It stays powered on while > the board has power. > > Seth > > P.S. Try UART instead at 3.3v. This may help. > > On Saturday, February 9, 2019 at 2:58:12 AM UTC-6, Dan Hammans wrote: >> >> 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... >> >> >> -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/beca15f3-4b6f-4d5d-b240-9d791a9b39e8%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
