B7971 x8 - Ideas on Caller ID, etc.

[Cogwheel Circuitworks]

(from neonixie-l google group)

 

Regarding Caller ID, one could go to a pure hardware solution and solder chips, but my tendency would be to use a PC, an off-the-shelf USB modem dongle and a little Perl script to monitor the modem for the Caller ID and get it to the display.

 

The demo video was done using a very small Perl script, BTW. But any programming language w/access to the peripherals would work just as well.

 

Regarding more than 8 tubes, you would just need to build two B7971x8s systems and communicate with both of them independently through two virtual serial ports. The scroll shifting would probably work w/o any modification to the display driver board firmware.

 

You are lucky you if you have 16 B7971s; They might fetch over $1500 in today's market.

 

..c

 

On May 11, 7:50 pm, Wayne de Geere III <wa...@deGeere.com> wrote:

> I'm thinking your B7971x8 display support landline caller ID functions. Just wanted to put that out there as an interesting function, especially for a display with support for 7+ numbers/characters. Caller ID and call waiting caller ID is part of the ADSI spec, it's basically a Bell 202 (simplex) modem burst of data.

>

> http://en.wikipedia.org/wiki/Analog_Display_Services_Interface

>

> http://telecom-info.telcordia.com/site-cgi/ido/docs.cgi?ID=SEARCH&DOC...

>

> There's probably a chip out there that grabs it (through an optocoupler or optoisolator) and delivers TTL level ASCII out the back end.

>

> I'd like a longer than 8 tube device, personally, but 8 would be great, especially if the data scrolled.

 

>