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rasberry pi - USB powered

  • 08-10-2015 11:05pm
    #1
    guano_jim
    Registered Users, Registered Users 2 Posts: 119 ✭✭


    Is anyone powering their raspberry pi from a USB port on a tv?


Comments

  • #2
    mordeith
    Registered Users, Registered Users 2 Posts: 5,278 ✭✭✭mordeith


    guano_jim wrote: »
    Is anyone powering their raspberry pi from a USB port on a tv?

    Haven't tried. I'm using a powered hub which works fine. I've only got one external hdd coming off the pi though.


  • #3
    mordeith
    Registered Users, Registered Users 2 Posts: 5,278 ✭✭✭mordeith


    guano_jim wrote: »
    Is anyone powering their raspberry pi from a USB port on a tv?

    Haven't tried. I'm using a powered hub which works fine. I've only got one external hdd coming off the pi though.


  • #4
    Duggy747
    Registered Users, Registered Users 2 Posts: 13,295 ✭✭✭✭Duggy747


    guano_jim wrote: »
    Is anyone powering their raspberry pi from a USB port on a tv?

    I did for a while on mine but had to stop because there wasn't enough juice going to it. (Rainbow box appears in the top right corner to let you know it's not getting enough)

    Granted, I was using it for emulation but if you're just using it to run something like Openelec you should be grand.

    Was handy because the software could detected the TV supported CEC (most modern ones do I think) so I could automatically use the TV remote to control it and it turned on / off with the TV appropriately.


  • #5
    PrzemoF
    Registered Users, Registered Users 2 Posts: 1,931 ✭✭✭PrzemoF


    http://raspberrypi.stackexchange.com/questions/11701/power-issues-when-connected-to-tv-via-usb
    https://www.raspberrypi.org/forums/viewtopic.php?f=2&t=5630
    https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=42873

    It might work on some models, but it might not work on others


  • #6
    davo2001
    Registered Users, Registered Users 2 Posts: 3,323 ✭✭✭davo2001


    Yes, using it with my LG TV for the last couple of years, powered through the USB port in the TV, no issues.


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  • #7
    Orion
    Closed Accounts Posts: 12,807 ✭✭✭✭Orion


    Duggy747 wrote: »
    Was handy because the software could detected the TV supported CEC (most modern ones do I think) so I could automatically use the TV remote to control it and it turned on / off with the TV appropriately.

    This works via HDMI too. That's the way I have it set up with Kodi on it. Using mains power to the Pi though.


  • #8
    Ste-
    Registered Users, Registered Users 2 Posts: 4,751 ✭✭✭Ste-


    I use to power two of them this way.
    That rainbox box can also be turned off.


  • #9
    Alanstrainor
    Registered Users, Registered Users 2 Posts: 23,157 ✭✭✭✭Alanstrainor


    I run my OpenElec Pi from the USB port in my Samsung tv. Never had issues.


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