If you were around before desktop computers were commonplace in-home, then you probably remember the teletype. Well folks, the old school communication device is making a comeback, thanks to the efforts of a self-proclaimed nerd by the name of Robert Coggeshall (co-programmer of sudo), and of course, the popular Raspberry-Pi SBC.
Teletypes fell off the radar with the advent of the fax machine and personal computer, but for some (like Sudo Bob), having retro devices that are much more difficult to use than the newer gadgets brings a certain level of nostalgia. It’s like rushing home to use your corded home phone, even though you have a cell phone, just because you still like wrapping that curly cord all around the living room furniture. Ah. It gets you every time.
Regardless, Sudo Bob resurrected the teletype just because he can. He snagged a spare teletype from another 70s kid from the NYC Resistor crew at the 2013 Maker Faire and the rest is history. Oh glorious teletype, you have returned!
With a 2-Channel Relay Module, Raspberry-Pi, N-Channel Mosfet, 200 OHM 1 Watt Resistor, 24VDC Wall Wart, F<>F Rainbow Jumper Wiring and a little rewiring, the 50-year-old device has been fully restored. Bob also used the Raspbian Wheezy distro and ran the Ras Pi headless for coding, but use your own discretion if you’re building your own.
If you’ve got an old teletype you’re looking to restore as well, check out Sudo Bob’s blog for the full specs and building process for making your own.