AVR-Chat

I did my complete development with the Xbee using TTY serial on my doodads
(connected to mega128's).   They were pretty easy to use once I figured out
how to configure them to do what I wanted.  You only need the level shifter
if you want to connect to a PC for firmware upgrades (or communications).

I don't know about the 1 mile.  You can talk with the Xbee support folks
(they are *very* phone friendly) and they will give you a white paper
detailing how they came across that number.  It involved the whip antennas
and line-of-site.  YMWV


-----Original Message-----
From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf
Of Cat C
Sent: Wednesday, February 07, 2007 5:49 PM
To: AVR-Chat@yahoogroups.com
Subject: RE: [AVR-Chat] Re: Zigbee modules etc, etc

Hi Steve,
I will also (hopefully) need to use zigbee if things go my way...
I am thinking of using the Xbee Pro, because of the higher power.

Is it worth buying the development kit, or it's just as easy to buy modules 
and interface to them (MAX232 or so for PC end, straight serial TTL at the 
other end)?

Also, do they really work up to 1 mile in line of sight?  I'd like to use 
them at 1Km, I am concerned about the chip antenna having lobes, and having 
to rotate... or something.

I thought nobody sells 900MHz zigbee, do they?  I'd think I should get 
longer range, and maybe less interference ... am I wrong?

Thanks,

Cat

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