Orange Pi PC power delivery capabilities

cbm80 · Published in 2016-2-25 14:26:38

Edited by cbm80 at 2016-2-25 18:49

Recently I have sucessfully connected 3 USB 3.0 2.5" harddrives to my Orange Pi PC. I'm very positively surprised because it works ok! Unfortunatley only in stock Chineese Android. Tried also on my favourite X2 Beelink but only one disk was visible despite all USB ports work ok with mouse/keyboard. According to the schematics vertical USB has 1A voltage regulator and dual horizontal ports have separate regulator. Also OTG port has high 680mA current limit but I was not able to connect harddisk, probably my cheap microUSB to USB adapter limits current too much.
In my config I use 5V 3.5A power supply connected directy to GPIO pins 4 and 6. I have some 2A ones too but I'm afraid it can be too little because 3 disks draw about 1.5A alone.
I looked at OPi One schematics and it seems this SBC has even no separate regulator for USB.
I haven't tested multi disk config in any Linux, but I will because OPiPC seems to be good candidate for NAS server.

crazykill · Published in 2016-2-25 22:44:53

Did you try a hub with independent power ?

cbm80 · Published in 2016-2-26 03:34:52

No, as I wrote - all disks are powered directly from Orange Pi PC. They will draw probably about 1.5A so for such configuration power adapter 2.5A+ is necessary.

crazykill · Published in 2016-2-29 03:05:06

Something like this seems a bit overkill http://www.amazon.com/SNANSHI-Sw ... amp;keywords=5v+10a