Not to take away from this thread, but here's a fun project I did a few years ago to make a SD based external floppy emulator for Ataris like the 800XL: https://nuxx.net/wiki_archive/A/SDrive_NUXX
I reused an existing OSS project and sold some kits and nice enclosures and stuff to make it more than a DIY PCB-based project. Was fun and a nice learning experience, and it also gave me a reason to start poking around with the old Atari hardware that I grew up with.
I reused an existing OSS project and sold some kits and nice enclosures and stuff to make it more than a DIY PCB-based project. Was fun and a nice learning experience, and it also gave me a reason to start poking around with the old Atari hardware that I grew up with.