I've made some progress turning my typewriter into a computer, and now I can print much larger ASCII art using it! I added software flow control, and added code to process escape sequences to use the typewriter's formatting features.
I got a Brother AX-25 electronic typewriter from the 80s a few weeks ago, and I've been working on modernizing it with an Arduino and a Raspberry Pi. The Arduino controls two multiplexers that emulate the typewriter's keyboard, and the Arduino is hooked up to a Raspberry Pi over serial. This lets me use my typewriter as a Linux terminal, or as a teletype.
Check out my first video if you want to see how it works:
https://www.youtube.com/watch?v=JvhT_Bru0AASource code:
https://github.com/artillect/serial-typewriterChat with me on Discord:
https://discord.com/invite/NxEQNwrQWtFollow me on twitter:
https://twitter.com/ArtillectYTChapters:
0:00 Intro
0:37 Updates
2:11 New features
2:53 Printing the Mona Lisa
#arduino #raspberrypi #typewriting #linux