[Noisebridge-discuss] [Rack] minotaur is down

[Adrian Chadd]

On 5 July 2013 16:18, Jake <jake at spaz.org> wrote:
> well, the payphone is one physical serial port, and the upstairs keypad is
> another.  These are important because they are actual RS232 lines running
> long distances (like in the 1970's) and they are pretty mission-critical
> (literally in the mission) and the extra USB-serial layer would suck for
> that.  so i'm glad we don't need to do that.

rs232 over long distance? why not just whack up RS422 and an Arduino?

I wonder if I should acquire some rs422/rs485 stuff and build some
long distance (100s to a couple thousand feet) long bus topology of
arduinos. Would there be any interest in a talk/demo of that kind of
stuff?



Adrian
(Yeah, i did a stint in control systems.)