Hi, This isnt really arduino realted, although one is used in the end scpe of the project. I want to power a device which normally needs external power without using a powered usb hub.
its an external hdd that I want to connect to the Raspberry pi3 without the need to pay for a powered usb hub to run it through, this is to reduce cost, and to reduce footprint.
My idea was to desolder the usb votlage input socket on the Pi, and change it for a barrell conector that is a bit more robust, then have a 5v power brick which connects to the barrell, which is soldered to the Pi.
Then the plan (which i dont know is a good one or not) is to jump some wires over to the usb external hdd from the barrell conenctor,
This in theory will give me a direct power link from the power brick to the usb hdd, but what I dont know is if injecting 5v into the output side of a usb port will bugger it up?
Could I cut the 5v rail of the usb port and avoid that potential problem?
If anyone has any experience or ideas im all ears!
Ta in advance.