[GreenKeys] ITTY URL address update

Fri Mar 9 22:46:30 EST 2018

I made up a couple of devices for some very close friends. I hooked up an LED an a pushbutton for each. The push button is used to change stations or to shut down the unit; the LED shows when it is running or buffering. 

You can’t just unplug a raspberry pi, so you need to make sure things are safely shut down before pulling the plug, so a long press of the button goes into shutdown mode. 

Of the two I made for others, the first one has the LED and pushbutton mounted in the raspberry PI case; the second one has the LED and pushbutton wired up and is being put into a rack panel.  The report from both people was that it works well for them.

After making those two, I made two more for myself and put them in a rack panel, one for ITTY and one for Autostart.   Photo is attached. I can use the button to change stations or to just shut things down safely before pulling the plug.

Note: these only stream the audio. You still need to take that audio and feed it into a suitable TU.

I promised one of these to Stephen Jones at the Living Computer Museum when he is ready to put a teletype on display. Otherwise I’m just too busy to start making them for others. 

But I could load for you an SD card and you could use your own raspberry PI if you like.  It would be plug and play if you want to use ethernet, and would require some minimal configuration by you if you want to hook it to your wifi. It would work without the LED and/or pushbutton and would play only ITTY, and in the case of no button you would (should) have to log into it to safely shut it down. 

Or hook up your own LED and/or pushbutton if you like - I’ll let you know how. 

If anyone wants me to load an SD card, contact me off list. I’ll ask you to mail me an SD card, or funds for me to buy one for you, and I’ll load one for you. You supply your own raspberry PI and, if desired, LED, resistor and pushbutton.

It works headless. Upon startup it runs a python program that controls MPD (music player daemon). It is working well for me and the two others who are using it.

NOTE: For those who are technical, I did not load a full desktop version of raspbian. So if you go with my SD card, you will be able to hook up and HDMI monitor and keyboard to it but you will use the shell if you want to log in for any reason (e.g.  to configure the wifi or to shut it down).

As Steve said, there is much more you can do.

73,
Paul
W2TTY
i-Telex: 80003

IITTY:  		HTTP://INTERNET-TTY.NET:8000/ITTY
AUTOSTART:  HTTP://INTERNET-TTY.NET:8030/AUTOSTART
EUROPE: 	HTTP://INTERNET-TTY.NET:8040/EUROPE

> On Mar 9, 2018, at 5:53 PM, Steve Garrison <steve.n4tty at gmail.com> wrote:
> 
> Using the GUI interface on the RasPi, start the browser, connect to the ITTY stream and the audio is available at audio jack. Now that way does mean you video monitor/keyboard/mouse connected, but there are ways to do it from the command line (or on boot up) as well.
> And 5 to 7 inch screens are everywhere for the RasPi.
> 
> I have a complete 7" screen and RasPi in a small case that I run Nagle's BaudotRSS software along with his TTYLOOPDRIVER device to do demos of sending and receiving text messages while "listening" to iTTY News through a Dovetron to a tty all the time.
> 
> Steve G./N4TTY
> Sent from my iPhone
> 
>> On Mar 9, 2018, at 6:26 PM, tony.podrasky <tony.podrasky at gmail.com> wrote:
>> 
>> What do you have to do to get it to decode MP4 data?
>> 
>> Or even a data stream of audio?
>> 
>> UE,
>> K2EAA - TONY
>> NNNN
>> ZCZC
>> 
>>> On 03/09/2018 02:47 PM, Steve Garrison wrote:
>>> Using the RasPi is a piece of cake.
>>> 
>>> Steve G./N4TTY Sent from my iPhone
>>> 
>>>> On Mar 9, 2018, at 5:03 PM, Mark J. Blair <nf6x at nf6x.net> wrote:
>>>> 
>>>> 
>>>>> On Mar 9, 2018, at 12:51 PM, tony.podrasky
>>>>> <tony.podrasky at gmail.com> wrote:
>>>>> 
>>>>> THIS is the only one that works at my QTH:
>>>>> 
>>>>> /usr/local/bin/mplayer http://internet-tty.net:8000/ITTY
>>>> 
>>>> That URL works fine for me on my Mac, whether I open it in Safari
>>>> or with mplayer (after installing mplayer vis MacPorts). What I
>>>> still haven't figured out is how to redirect an internet stream
>>>> into fldigi (or any other RTTY modem software) on a Mac, without
>>>> resorting to either a patch cable or just listening to the speaker
>>>> output with the built-in microphone. Is there a clean way to do
>>>> that without tying up the Mac's audio hardware?
>>>> 
>>>> I'd also like to set up something like a Raspberry Pi as a
>>>> dedicated ITTY player, to be routed into my Dovetron modem for copy
>>>> with real TTY gear. But that seems pretty straightforward, at
>>>> least.
>>>> 
>>>> -- Mark J. Blair, NF6X <nf6x at nf6x.net> http://www.nf6x.net/
>>>> 
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>> 
>> -- 
>> MicroSoft error messages written in Haiku:
>> 
>>       Windows NT crashed.
>>  I am the Blue Screen of Death.
>>    No one hears your screams.
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