You can also transmit on the mains at about 100KHz.
Ray

solarwind wrote:
> Hey all!
> 
> For my next (simple) project, I'm trying to build a network of PICs
> that will monitor temperature at various places around the house.
> 
> The problem: how do I create a network?
> 
> One possible solution is to network over wireless, but this is very
> expensive when I have 5 or 6 units to interconnect. Another Idea is
> through the telephone line. How would I modulate signals over the
> telephone line? The aim of the circuit design is that it should be
> simple.
> 
> This is the only idea that I can think of that has the potential to be
> inexpensive to make. If you guys have any other ideas, I would also
> appreciate it.
> 
> -- [ solarwind ] -- http://solar-blogg.blogspot.com/

-- 
Ray Hurst
949-202-6037
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist