[Elecraft] Windows 8.1 tablet power

Bill Frantz frantz at pwpconsult.com
Tue Jul 7 20:42:51 EDT 2015


Back feeding a Raspberry Pi from USB bypasses the fuse in the 
Pi. It is probably a good idea to include one in the power 
supply to the hub. That is how I powered my Pi.

When I changed to a Beaglebone Black, the USB wouldn't work. I 
had to remove power to the hub and power it from the Beaglebone 
before I could connect USB devices.

73 Bill AE6JV

On 7/7/15 at 9:29 AM, hullspeed21 at gmail.com (Warren Merkel) wrote:

>In the case of the Raspberry Pi, I have had luck with some powered hubs
>being able to back feed 5V on the USB data connection and actually power
>the Pi via it's USB dataport.   This also may work for your tablet if
>luck is with you :)
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