DOOM Running on a Digital Pregnancy Test

Yes geeks, that right: Twitter user Foone got DOOM running on a digital pregnancy test. Behold:

https://twitter.com/Foone/status/1302823968198389761

And to clarify what I’m doing here: This is a replacement display AND a replacement microcontroller. I’m not using any of the original tester other than the shell.

The existing CPU can’t be reprogrammed and the existing LCD can only show 4 things, so I had to replace both to make any changes.
And the current version doesn’t even fit into the shell! (although I’m certain it will when complete.)

[Foone on Twitter]