Erik,

I would *NOT* use TCP/IP for communication between PICs. Now, if you have
some additional devices to connect...

I cannot help you with the thumb-size problem...

But there are several perfectly good wireless transmitters/receivers out
there. They are just *perfect* for in-house communication, with a range from
40m to over 200m (from 133ft to over 666ft). Fully digital I/O with simple
uC interface. If you are interested, I can point you in the right (I hope)
direction.

NOTE: No affiliation, just love these products.

Regards,
Andres Tarzia
Technology Consultant, SMART S.A.
e-mail: atarzia@smart.com.ar

-----Original Message-----
From: Erik Reikes [mailto:ereikes@XSILOGY.COM]
Sent: Friday, October 22, 1999 16:22
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: Please add http:// [OT]

[...some text deleted...]

I keep having this dream where there are hundreds of battery powered PIC's
all over my house wirelessly comunicating with TCP/IP.  They have to be
about the size of your thumb or less and able to be thrown around like
popcorn...  It seems like its just the wireless that is difficult...

Hmm...

-Erik Reikes