Alexandre,

I have recently found the Jennic range of modules.

http://www.jennic.com/products/wireless_products/index.php?productID=3D0000=
000049

Rather than a chip level solution, these modules have everything already =

loaded and are Zigbee compliant. Hence all of the routing, meshing, and =

connection are all taken care off. A nice option is the high power unit for =

longer distances. You're able to put your application code onto the modules =

CPU and utilise I/O pins, and communicate via SPI or UART.

I decided that using a module that was already approved and tested would be =

a lot easier and quicker to market than trying to reinvent the wheel. Leave=
s =

me to concentrate on the application level functionality, and getting =

appropriate approvals can be real pain. The modules are less than $40AU. I =

quess it depends on how many you want to sell, time to market, ease of use, =

etc which way will be better for you.

Regards,
David Sincock

On Friday, June 08, 2007 5:37 AM, Alexandre Guimar=E3es wrote:
> Hi,
>
>    I have a new project where I will need to make a wireless link between =

> a
> few devices around a 20 meters perimeter. The protocol can be a simple
> master/slave protocol and should not be a problem to code. The hard time I
> am having is selecting a wireless chip that I can make to work with little
> RF knowledge and that I can buy easily in small quantities. Data speed is
> also not a big problem as I can live quite well with 19200 bps troughput.
>
>    So far the best option I have found is the Nordic NrF240L01.. Can you
> guys point me to some other inexpensive and easy to interface parts ?
>
> Best regards,
> Alexandre Guimaraes
>
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