[GreenKeys] Teletype Demo

[ad7i]

Hi Al --

I'm very near you, in Middletown NJ.  I don't know if this would be useful
to you, but I'm just finishing up a project that consists of an Arduino Uno
that takes serial data from the USB port (driven by a W10 computer, R-Pi,
etc) and will output that data as 5 unit baudot code at either 60, 66, 75
or 100 WPM; it also outputs a signal for motor control output with
appropriate timing.  The USB side requires that the data source honor
XonXoff flow control, and it seems to work well at USB serial speeds up to
250,000 (not that I like to run it that fast!).  An in-development
embellishment of the device is also the ability to send canned messages
from the Arduino code ROM to the TTY, triggered by a push button or
external input (like a motion sensor).  My thought was to do something that
might be helpful as a demo for museum situations.

I also have a low voltage selector magnet driver in development, but that
probably won't be finalized until early January.

Best wishes,
Paul Newland, ad7i




On Sat, Nov 23, 2019 at 8:25 PM Al Klase <ark at ar88.net> wrote:

> Gang,
>
> I volunteer at the Radio Technology Museum, here in New Jersey.
> http://www.rtm.ar88.net/Tac_Comm/Tac_Comm.html  Scrool dow for a brief
> TTY video.
>
> Years ago, I set up a Model 19 in our WWII communications display.
> Initially, we ran this via "Heavy Metal" and a cobbles up loop converter.
> Then one of our guys built a Raspberry Pie device that grabs news from the
> Internet , and types it out when someone trips a motion sensor.
>
> We're now looking to expand the display, and get another machine running.
> I'm looking for some windows software that will output 5-bit Baudot to a
> serial port for testing purposes.  I tried to use Heavy Metal, but it seems
> unhappy on Win 7/10.  I think we were running XP in the old days.
>
> Any suggestion greatly appreciated.
>
> Regards,
> Al
>
> --
> Al Klase – N3FRQ
> Jersey City, NJhttp://www.skywaves.ar88.net/
>
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