Re: [beagleboard] beaglebone white doesn't work when powered from the barrel connector

Clearly you have to load the power supply to get an accurate voltage measurement. You could use a purely resistive load for a current of about 100mA and that would give you an accurate voltage measurement. Using the formula R = V/I, select a resistor that would give you close to 100mA. Remember

Re: [beagleboard] beaglebone white doesn't work when powered from the barrel connector

Measuring a power supply with no load will not give you a good reading. On 7/18/2016 7:20 AM, scma...@gmail.com wrote: > first thanks for your reply. > > i am measuring without the BB connected since i want to know if i am > able to provide the required voltage..Also if i am not mistaken the BB

Re: [beagleboard] beaglebone white doesn't work when powered from the barrel connector

5V On Mon, Jul 18, 2016 at 9:20 AM, wrote: > first thanks for your reply. > > i am measuring without the BB connected since i want to know if i am able > to provide the required voltage..Also if i am not mistaken the BB white has > a voltage regulator so there is no reason to

Re: [beagleboard] beaglebone white doesn't work when powered from the barrel connector

first thanks for your reply. i am measuring without the BB connected since i want to know if i am able to provide the required voltage..Also if i am not mistaken the BB white has a voltage regulator so there is no reason to count with the BB connected because there will be a voltage drop if i

Re: [beagleboard] beaglebone white doesn't work when powered from the barrel connector

Are you measuring the power supply voltage with the BBB connected? You need to load the power supply to measure the output voltage. Regards, John > On Jul 15, 2016, at 10:22 AM, scma...@gmail.com wrote: > > first of all thank you for your reply.. > > If you could suggest me though

Re: [beagleboard] beaglebone white doesn't work when powered from the barrel connector

first of all thank you for your reply.. If you could suggest me though something more specific (i.e what voltage should i test?) i would appreciate it.. Now, what i noticed has really driven me crazy... Since i have the bb RevA6, i checked in the system reference manual (

Re: [beagleboard] beaglebone white doesn't work when powered from the barrel connector

Time to grab a volt ohm meter and do some troubleshooting. On 7/14/2016 10:31 AM, scma...@gmail.com wrote: > hello everybody from a newbie, > > well, happily, my beaglebone white works just fine when connected to > my pc via usb. The power led is on and everything is fine, therefore > i suppose

[beagleboard] beaglebone white doesn't work when powered from the barrel connector

hello everybody from a newbie, well, happily, my beaglebone white works just fine when connected to my pc via usb. The power led is on and everything is fine, therefore i suppose that my bb board is still functional. The case is though that i am going to need to provide external power supply