BY MICHAEL SIMPSON
■ FIGURE 3
■ FIGURE 2
network only and do not support the
802.15.4 Point-to-Point protocol of the
original modules. On the flip side, the
original modules are 802.15.4 only and
no longer support mesh networking.
I will be doing various point-to-point
articles in the future so that you will be
able to utilize the Series 1 modules.
I also wanted to let you know that
at the time of this writing, the XBee
Pro Series 2 module was not available.
However, it should be available by the
time this article goes to press. Once I
get my hands on one, I will let you
know how it works.
• One XB24-BCIT-004 – chip antenna
• Two XB24-BWIT-004 – wire antennas
• One XB24-BUIT-004 – UFL connector
• One XB24-BSIT-004 – SMA connector
for my examples. You can use any
module or development board.
The UFL connector is perfect for
routing an antenna outside an enclosure. The development kit comes with
a small UFL-to-SMA adapter cable that
will connect this module to one of the
included SMA antennas. The SMA
connector based module can be connected directly to one of the included
antennas. We will use both of these
configurations for our weather station.
Start by selecting the SMA based
module and an SMA antenna as
shown in Figure 4. Plug the module
into one of the development boards
and attach the antenna. I’m going to
use one of the RS-232 development
boards. I also recommend attaching
the board to a plastic base in order to
keep from shorting out if you happen
to place it on top of something. I often
also add a top base, as well for further
protection as shown in Figure 5.
I am going to set this module up as
a coordinator. Later, we will use the
All right, you know your options. I
wanted to go into some detail on how
to set up the new series 2 modules.
Maxstream sells a development kit
that’s a perfect match for our weather
station. Shown in Figure 3, the kit
comes with five development boards. You get two
USB and three RS-232
boards. The USB boards
are actually RS-232 boards
with USB-to-serial converters built in so that when the
drivers are installed, they
create new COM ports for
our software to use.
To get you started, I am
going to create a coordinator
and a router/end device so
that we can get our weather
network up and running. I will
be using the development kit
■ FIGURE 4
The kit also comes
with five XBee modules.
■ FIGURE 5
March 2008 37