> > *So in case I buy a defective hub I have to cut such a USB cable leading > back to BBB and remove +5 V from there?What if I connect such a hub to BBB > right away? Can I damage the board?* >
I've not heard of anyone damaging their board. And it's not so much a defective hub, some devices can / do operate this way. On Wed, Dec 9, 2015 at 10:03 AM, Piotr C <cerber...@gmail.com> wrote: > So in case I buy a defective hub I have to cut such a USB cable leading > back to BBB and remove +5 V from there? > What if I connect such a hub to BBB right away? Can I damage the board? > > W dniu środa, 9 grudnia 2015 16:47:09 UTC+1 użytkownik William Hermans > napisał: >> >> 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 <cerb...@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...@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. > -- 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.
