[GreenKeys] Model 19 on ITTY

[Al Klase]

Hi Ralph, /et al/

The point is we don't have a TU.  We'll be running a PC anyway if we 
monitor ITTY.  Logic level to current loop isn't a problem, and I've 
found an Arduino "sketch" that will go from ASCII to baudot.

I'm exploring RTTYT which looks like it will handle the PC chore. The 
scheme is complicated by the fact that modern PC's don't have RS-232 
ports, and the UART's in the USB dongles don't support 5-bit formats.

73,
Al

On 1/23/2020 5:00 PM, Ralph Mowery wrote:
>
> Doesn’t the audio come out of your computer speakers ?   If so you 
> could just run that audio into any modem/TU and then to the machine.  
> I think that is what I did a year or so back.
>
> Ralph ku4pt
>
> *From:*greenkeys-bounces at mailman.qth.net 
> [mailto:greenkeys-bounces at mailman.qth.net] *On Behalf Of *Al Klase
> *Sent:* Thursday, January 23, 2020 4:40 PM
> *To:* greenkeys at mailman.qth.net
> *Subject:* [GreenKeys] Model 19 on ITTY
>
> Gang,
>
> We're still klutzing around with TTY's at the Radio Technology Museum, 
> and we're starting to make some progress.  So, how do we get data from 
> ITTY out to the machine?
>
> I have MMTTY copying the stream FB, but don't see the hooks to get the 
> data out.  Even 8-bit ASCII on a COM Port would be OK, as we can use 
> TinyFSK on an Arduino to get to Baudot.
>
> I may just be dense. :-(
>
> Al
>

-- 
Al Klase – N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/

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