Hello John, I have looked at the link you have sent and it is a good idea but i can just hook up a multimeter and see the current consumption that way since i don't have time to wait for the device to come.
Anyway as a slightly different question: I have been looking into the datasheet of the BBB and it says i can power the board thorugh the expansion header but doesn't specify much else about that and the internet isn't too clear on some details. So what i want to know is the following: - Are the pins i am supposed to power the beaglebone through pin 5 and 6 on P9? ( i am asking this beacuse when i powered the board through the barrel connector those pins outputted 5V ). - Is there a limit to how much power can be drawn through those pins, or does it draw however much the BBB needs ( i am estimating that with wifi and everything else it can get up to 600-700mA). The reference manual states that those pins can dish out 1A for supplying any add-ons, is it the same for when you supply power to them. On the board i am making the 5V voltage regulator that supplies the BBB can handle 2A so i am covered on that end. 2014-07-05 21:49 GMT+02:00 John Syn <[email protected]>: > > From: Cristian Mitu <[email protected]> > Reply-To: "[email protected]" <[email protected]> > Date: Saturday, July 5, 2014 at 12:37 PM > To: "[email protected]" <[email protected]> > Subject: Re: [beagleboard] BeagleBone Black Current Consumption > > Ok now i see it specifies above the cnditions in which the test was done > with practically everything connected. The only thing i need to know now is > by how much the currentconcumtion rises while using wifi. Probably a litle > bit over 500mA. > > http://www.hardkernel.com/main/products/prdt_info.php?g_code=G137361754360 > > If you don’t have a way to measure the current consumption, this device > might be handy. > > > > > 2014-07-05 20:29 GMT+02:00 Cristian Mitu <[email protected]>: > >> Oh yes i have seen that part, i wasn't sure beacuse it said TBD in the >> table but now i see that that is only for the reset state only. And from >> what i understand the USB's are limited to 500mA, and the kernel booting >> peak is 460mA. But it doesn't specify for the other devices. >> >> >> 2014-07-05 20:11 GMT+02:00 William Hermans <[email protected]>: >> >> Cristian, >>> >>> There is a table of power consumption conditions in the TRM for the >>> Beaglebone black. 460 ish mA when everything like USB / ethernet / hdmi >>> etc is used( if memory serves ) But do double check, as my memory for such >>> things isnt always perfect. >>> >>> >>> On Sat, Jul 5, 2014 at 10:42 AM, Cristian Mitu <[email protected]> >>> wrote: >>> >>>> Hello, >>>> >>>> I need to know how much current does the beaglebone black need in two >>>> situations: >>>> >>>> - worst case scenario - where everything is used (except extension >>>> headers) >>>> - specific setup - where i use the usb for wifi , data cable plugged >>>> in and debuger at once. >>>> >>>> The data sheet says 1A is sufficient for powering the board but if i >>>> have power hungry devices like the wifi more may be needed. >>>> >>>> Regards, >>>> Cristian >>>> >>>> -- >>>> 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 [email protected]. >>>> >>>> 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 a topic in the >>> Google Groups "BeagleBoard" group. >>> To unsubscribe from this topic, visit >>> https://groups.google.com/d/topic/beagleboard/A9I79N2WyqM/unsubscribe. >>> To unsubscribe from this group and all its topics, send an email to >>> [email protected]. >>> 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 [email protected]. > 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 a topic in the > Google Groups "BeagleBoard" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/beagleboard/A9I79N2WyqM/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
