Apple II Raspberry card

[James Davis]

Does anybody know who makes this Apple II Raspberry interface card (for sale on ebay)?

https://www.ebay.com/itm/Apple-II-Raspberry-card/323506214965?hash=item4b52791835:g:8WoAAOSwzINbyP3e:rk:2:pf:0

[gro...@gmail.com]

John Pham
https://www.linkedin.com/pulse/introducing-our-cluster-back-plane-john-pham/

[Steven Hirsch]

On 1/6/19 3:48 AM, gro...@gmail.com wrote:
> John Pham
> https://www.linkedin.com/pulse/introducing-our-cluster-back-plane-john-pham/
>

Interesting. Aside from a rather uninformative LinkedIn page and equally
terse eBay listing, I can find no detailed information on either the backplane
or the carrier card. Any documentation available?

[gro...@gmail.com]

On Sunday, January 6, 2019 at 12:14:54 PM UTC-10, Steven Hirsch wrote:
> Interesting. Aside from a rather uninformative LinkedIn page and equally
> terse eBay listing, I can find no detailed information on either the backplane
> or the carrier card. Any documentation available?

According to the one YouTube video I saw earlier, out of the box the card doesn't interact with the Apple II motherboard. All the Apple II does is supply power to the card - that's it! The Apple II card is simply a prototype card with a Raspberry Pi connection. You'd have to build additional circuitry to tie the Raspberry Pi to the Apple II hardware. It looks like a really nice prototype board - it has access to all the power rails, a couple of 74HCT244's, a small prototype area, and a 50-pin header to connect a logic analyzer.

As for the backplane, it is 100-percent proprietary. Nothing Apple II about the backplane. The designer simply chose to use the Apple II's 50-pin edge connector. So he's able to fulfill two markets: the Apple II prototype market, and the cluster market for those who maybe want to build a cheap crypto mining machine or something.

[Steven Hirsch]

Thanks much for posting! Doesn't seem like anything of interest to me.