You're going to need a 1A + supply if you use more than just ethernet. So if you're using ethernet, and CANBUS for instance.
One thing to note about those powered USB hubs. Sometimes they have power on the USB line going back to the host. This power may have to be "cut" in order for it to work correctly. Some people on these groups have had that issue . . . On Wed, Dec 9, 2015 at 8:36 AM, Piotr C <cerber...@gmail.com> wrote: > Thank you for your answer. > So as I understand a powerful eg. 2.5 A power supply is essential only > when I want to connect a lot of higher current devices straight to BBB GPIO > pins? > > Another question that popped to my mind: > I have read here > https://groups.google.com/forum/#!msg/beagleboard/ka8Nba41YMY/2_QrS9w-A7sJ > that I may need to disconnect the power line coming from the hub. What if > the only cable that goes to the board is the USB plug? How do I do it then? > > W dniu środa, 9 grudnia 2015 01:47:39 UTC+1 użytkownik RobertCNelson > napisał: >> >> On Tue, Dec 8, 2015 at 6:27 PM, Piotr C <cerb...@gmail.com> wrote: >> > Dear Community, >> > I have bought a BBB and now I am going to buy some accesories, eg. USB >> hub. >> > I am not sure whether I should get a passive or an active one if I have >> a >> > 5V, 2.5 A power supply. >> > Will BBB power the hub sufficiently (with keyboard, mouse and a TP-LINK >> wifi >> > dongle)? Or maybe it should be the other way round -> smaller power >> supply >> > and an active hub? >> >> Get an active, you can only source a max 5v 500mA from the bbb's host >> port.. the wifi will want that.. >> >> Regards, >> >> -- >> Robert Nelson >> https://rcn-ee.com/ >> > -- > 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. > For more options, visit https://groups.google.com/d/optout. > -- 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. For more options, visit https://groups.google.com/d/optout.
