Long, rambling, sorry. TL;DR - logistics assistance requested to initiate 4xCompac mining on a cheaply powered CPU without incurring too much more in the way of additional expenditures. See below for what has already been purchased and where the bottleneck is (hint - UK cheap computer for $5)
I hope this hits the right thread. (fingers crossed)
NOOB here to mining, Gekko Compacs, and PI.. Yes there will be no ROI, not looking to make a profit, but looking to sink as little as possible into it even tho its fun.
So I found the thread, and while I can't afford an S7, I found the Compac here in the states for my son for Christmas. And getting it running was a hoot, drove her up to 17.85GH/s and have made a whopping 12 cents in my 48+ hours of mining lol. So, I got bit by the bug, and dropped for three more, two USB fans to cool them with, and an Anker 60w 7port USB 3.0 powered hub with an extra three charging ports. YAY! But of course I have to have the computer on 24x7 to keep her mining, which decreases what meager profit there might be, etc etc etc
Then I found the PI 0. $5 NBD right? Got the HDMI and USB adapters for another 8, bought a nice wood case with heatsink for another 8, bought a 128gb SD for 65 for the blockchain, money's flying out the window at this point. I think I'm approaching the cost of the XB1 my son got for Christmas because *I* have been bitten by the bug. Anker works fine on the laptop, not so much with the Pi 0.
Yes, have searched, googled, bing'd (I feel dirty, but at least it wasn't yahoo) and searched this thread. And all over the 'net RPIs are notoriously poor when it comes to 3.0 support, but 3.0 power 900ma is what I Need to overclock! Oh I can spend $75 from China on a monster 2.5a/port x 20 ports that will take a month and and then some to arrive, just to run 4 Compacs? I can't find an inline 10 port USB 2.0 that will go > 500ma in specs (whether it will allow you to do 1000ma every other port or not in reality I haven't found), and since I have the RPI 0, daisy chaining 3 -> 2 -> PI doesn't work, whether or not the 2 is powered. I can GET the Compac recognized in the 2 while powered, haven't tried running (was going 310mhz @ approx 740mv I think - but she was stable, hot but stable) - but even if she does work the layout wont allow for 4 sticks + 2 fans + a power line for the RPI 0. I can get the nic/mouse/kbd daisy-chained to an unpowered 2.0 hub off the powered 2.0 hub, but i just can't see how I'm going to get it all to work together.
So, I can return the Anker (btw I love Anker products, its the RPI 0 that I have issue with), but the only inline properly oriented USB 2.0 10 port hubs on Amazon all specifically say NOT FOR ASIC MINING and warn max output is 500ma (which I don't even think is enough to power the RPI 0 which I believe takes 700ma).
Even with 10 ports and Y bridges on 2.0 you're looking at having to daisy chain two of them together which is... drumroll.... about $70 (at least its in the USA and can be shipped from Amazon - but I haven't sourced the bridges/y-adapters yet)
I could B+ maybe, some in this thread have gotten it to work, but nothing on the poor 0. I haven't opened the 128gb SD yet so I can still take that back, the fans are amazon so I could return them, for a fee that makes them might as well keepers, and the sticks are already en route from Canada, so no refunds there.
I'm at a loss... Ideas? Anyone? Bueller?
i guess you did not find my post on pi zero somewhere earlier.
We are probably two people who tried zero, most are using pi 2 (which also works in configuration outlined below).
https://bitcointalksearch.org/topic/m.13098911setup is described there ^^^ and in followup posts.
Several things:
1. maybe usb 2.0 bridge is not needed, i don't know.
2. your pi will be up in the air as cables are much more formidable that the pi 0 itself.
3. Exact same Anker did not work for me either, but 7 slot 70W USB 3.0 Superpag (Amazon delivers this one pretty fast; many others used this hub as well) definitely works with 4, maybe 5 sticks (did not try more) on pi zero using bfgminer.
Cheers