here's a raspi user, currently driving 3 moonlander2 and an old rpi2 for bfgminer off a 'rather pricey' and very powerful USB hub at 796, above they become unstable in a rather unpredictable way. i suspect the usb WLAN dongle i have to use in my setup as a part of the problem - i think i read about USB bus saturation being a possible problem SOMEWHERE, but didn't debug in this direction any further yet...
anyways, the basic setup worked like a breeze. plug your MLDs in, run bfgminer as described in a lot of places, watch your MLDs have fun. however 9 more moonlanders are on their way to me, and i am eager to see if i can drive all i then have reliably with a bunch of hubs and one rpi3, which will eliminate the need of a seperate dongle.
considering that could actually fail, i have a bunch of rpi2 around, and a bananapi routerboard (BPI-R1). i'm kinda sure i'll find a way to make it work reliably, somehow.
sweet, i might be slightly better off as the odroid is usb 3, I'm looking at this hub:
https://www.scan.co.uk/products/icybox-ib-ac6702-7-port-usb-30-hub-7-charging-ports-led-amp-digital-display?v=c
I'm worried about this line though:
[edit]
found some cheaper hubs from a company called orico claim 36 watt on a 10 port, 12v 3a psu
There's a better deal... 13 port ones... 60W 2.1 A per port. Fits 7 MLDs at 700MHz