eysi
Posts: 14
Joined: Wed Feb 26, 2014 9:40 am

What usb hub would I need?

Tue Oct 07, 2014 4:20 am

Hi guys! I am confused if I would need a powered usb hub or not because currently I have a Raspberry Pi Model B,I am planning to connect a canon printer, an Edimax EW-7811U,keyboard,mouse?


Thanks!!

elatllat
Posts: 1337
Joined: Sat Dec 17, 2011 5:05 pm

Re: What usb hub would I need?

Tue Oct 07, 2014 5:48 am

Get a powered usb hub and isolate it so you can plug in anything without worrying about it.
If you want to avoid a powered hub look up how much wattage your devices pull... or you know just try it.
SBC with 32GB RAM: https://hardkernel.com

FAQ : https://raspberrypi.stackexchange.com

Unanswered: https://www.raspberrypi.org/forums/search.php?search_id=unanswered

eysi
Posts: 14
Joined: Wed Feb 26, 2014 9:40 am

Re: What usb hub would I need?

Wed Oct 08, 2014 4:32 pm

I bought a powered hub but when I plugged it into the RPI it booted without the power supply but its full of error :'( so what I did is that I plugged the Micro usb and the hub, would it backfeed?

User avatar
pluggy
Posts: 3635
Joined: Thu May 31, 2012 3:52 pm
Location: Barnoldswick, Lancashire,UK
Contact: Website

Re: What usb hub would I need?

Wed Oct 08, 2014 4:46 pm

Cheap hubs will back feed power with a Pi B, yes. You can stop it it doing this several ways, or you can live with it, its not usually a problem in my experience.
Don't judge Linux by the Pi.......
I must not tread on too many sacred cows......

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