Has anyone built some kind of power step up to convert the USB ports 3.x volt to 5v? I'd like to power my DSLR directly from the usb port of the Pi4 and control its power availability (on/off). I've looked into using the 5v GPIO pins but everyone advises against it, something about the possibility of the Pi itself getting damaged if attached device(s) try to draw too much or something?
So far I can achieve this with the standard output on the pi's usb ports using uhubctl (https://github.com/mvp/uhubctl) but the 3v is too weak. I'm leaning towards seeing if I can control a powered usb hub with uhubctl, but if possible would prefer to do it direct from the Pi's usb ports.
So this is what I'd LIKE to achieve:
[Pi4's USB port for data only]------------------------------------------------------------------------------v
[Pi4's USB port for power]-->[Some kind of step-up solution/custom board]-->[DSLR happy it has 5v]
But this is what it looks like I'll have to do:
[Pi4's USB port for data only]--------------v
[Wall Outlet]-->[Powered USB hub]-->[DSLR happy it has 5v]
So far I can achieve this with the standard output on the pi's usb ports using uhubctl (https://github.com/mvp/uhubctl) but the 3v is too weak. I'm leaning towards seeing if I can control a powered usb hub with uhubctl, but if possible would prefer to do it direct from the Pi's usb ports.
So this is what I'd LIKE to achieve:
[Pi4's USB port for data only]------------------------------------------------------------------------------v
[Pi4's USB port for power]-->[Some kind of step-up solution/custom board]-->[DSLR happy it has 5v]
But this is what it looks like I'll have to do:
[Pi4's USB port for data only]--------------v
[Wall Outlet]-->[Powered USB hub]-->[DSLR happy it has 5v]
Statistics: Posted by JMCIVOR — Mon Dec 02, 2024 4:26 am