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demsley
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Using a Powered USB Hub

Fri Oct 11, 2013 9:07 am

OK this may have been answered but I couldn't find it anywhere.

I've just bought a powered hub. Can I connect the HUB to the RasPi for both power and data? It seems odd connecting the same device to both ends, if that makes sense. I don't want to break either the RasPi or the hub by doing so.

Cheers

Dave
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Davespice
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Re: Using a Powered USB Hub

Fri Oct 11, 2013 12:51 pm

Hi there;
Sometimes the Hub will back power the Pi, as in supply power to it through the USB A port.
You can easily test this by leaving the micro USB port on the Pi disconnected and just connect the USB hub uplink cable.
If the Pi gets power then you're all good.

There is nothing wrong with doing what you want to do as far as I know.
But if you're worried about it you can just cut the red wire in the data uplink cable, then the Pi is forced to get its power from the micro USB connector.

Other people have done this before, see here;
http://www.raspberrypi.org/phpBB3/viewt ... 2&p=330024

Joe Schmoe
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Re: Using a Powered USB Hub

Fri Oct 11, 2013 12:56 pm

To the OP: Yes! I do this all the time. It is my standard setup.

My setup does not "back-power". I have a USB cable running from a port on the hub to the micro-USB of the Pi. It doesn't power up until I connect that wire.
And some folks need to stop being fanboys and see the forest behind the trees.

(One of the best lines I've seen on this board lately)

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