"and you'd get increased flexibility (e.g., updating the firmware, more
control over antenna type & placement)"

- Xbees are firmware updateable...
- Xbees can have external antennas, onboard chip antennas or an onboard whip

-marc

On 1/11/06, Timothy Weber <tw@timothyweber.org> wrote:
>
> alan smith wrote:
>
> > The nice thing about the Xbee is that its all built into the
> module.....just interface with  3.3V TTL (NOT 5V for the Xbee products)
> straight from the micro UART and your done.
>
> Thanks for the summary - sounds like you've been using them.
>
> I think this is the gist of it: the XBee is all-in-one, and it's small
> and reasonably cheap ($19).  You could make the same thing with
> Microchip's free ZigBee stack, a PIC18F, and one of the third-party
> radios like Chipcon's, and you'd get increased flexibility (e.g.,
> updating the firmware, more control over antenna type & placement), but
> at the cost of time and attention paid to the low-level details.
>
> This seems to be the way the market's segmented at the moment:
> all-in-ones vs. micro + radio + balun etc.
> --
> Timothy J. Weber
> http://timothyweber.org
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