[GreenKeys] Arduino Project on Hackaday

Jeff G jeffg at junknet.net
Thu Feb 13 00:11:51 EST 2020


Not sure if this was discussed here before, but I'm curious to throw this
to the wolves, er experts. I was sent this project on Hackaday, and having
a Model 32 around I slapped it together and tried it out. Lo and behold, it
actually worked great. (To be clear, it's not my project)

That said I understand the cheapo chinese relays on the arduino shields may
not hold up to switching 100+ volts DC, but just curious to ask the experts
if there's any reason -not- to use this, even if just for periodic
demonstration purposes. I'm wondering if I could take this, and build a
basic 120v power supply out of an ISO xfmr and put this in a little project
case for rudimentary teletype testing.

I tested it out by putting it in the loop between the teletype and my Hal
ST-6, with the ST-6 on standby, and save for an occasional glitch (teletype
does need some love), it worked/printed fine.

Project link: https://hackaday.io/project/2836-arduino-teletype

Jeff
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