November 29, 2022
EBAZ4205 Bitcoin miner board - Extras
All of the IO is on those doggone "data" connectors.
This wouldn't be so bad except the pins are on 2.0 mm centers
rather than the 2.54 mm (0.10 inch) centers that would make everything
easy. After a bunch of searching, I stumbled upon this listing on
AliExpress. I immediately ordered 30 of the 2x10 version on 11-29-2022
They arrived 12-13-2022. Only a 2 week wait!
I found these after I stumbled upon this on Tindie:
He says you can power the Ebaz with from 6 to 12 volts, which is new information, but plausible.
I am unsure about having one gigantic 54 pin (if I count right) connector.
I would be happier with 50 pins and some things left out (I have plenty of
50 pin ribbon cables and blocks to connect them to.
The board is out of stock and $15 when available. He offers the Gerber files.
He also says he worked up a 3D printed base using OpenSCAD, but doesn't share the files.
The designer is Andrew Kay. He says he uses JLCPCB to make the PCB's
I got a "back in stock notice" and ordered two - $30 plus $10.50 postage, so $20 each.
Accessory board on AliExpress
This has some kind of color screen and a variety of other stuff. Perhaps most importantly
it mates to those darn 2mm pitch connectors and I bought several for just that reason.
The price is $12 with the LCD and $10 without. I should track down the specifications before they vanish.
I wish they would just make a good sized proto board mated to those connectors
(and maybe add a barrel jack to route power to one of them.)
Feedback? Questions?
Drop me a line!
Tom's Computer Info / tom@mmto.org