This is my dream ZX81 keyboard, has a space bar and two shift keys as well as a larger enter key. This is modeled after the Suntronics KD-81 case, and is going with my case reconstruction project to replicate that experience. This keyboard is tested and known to be working, currently I am in the process of designing custom mounting panels for a market available industrial sloped enclosure case

note:

I have not attempted to use PCB assembly for this project, but I did build the BOM in a template and technically everything is there however there may be some legwork required up to and including being totally wrong. So big "your milage will vary notice"

License: CERN-OHL-P

The hack-a-day project site is here:

https://hackaday.io/project/189795-hbkd-81

The GitHub is here:

https://github.com/lindoran/HBKD-81