; PHOTO 5. There is a ton of RF and compute horsepower in this shot.
The 12 MIP PIC18F46J13 belongs to the nano-watt XLP family of low power
microcontrollers. The 100 mW LMX-ISM-242-LR radio allows the sensor
data processed by the PIC18F46J13 to be heard from afar.
HOST=0.0.0.0:2000 PROTO=UDP,TCP, MTU=1524 FLAGS=0x7 TCPMODE=0x4 BACKUP=0.0.0.0 <2.36> save Storing in config <2.36> <2.36> set wlan ssid servo AOK <2.36> set wlan passphrase nuts AOK <2.36> get wlan SSID=servo Chan=11 ExtAnt=0 Join=1 Auth=WPA2 Mask=0x1fff Rate=12, 24 Mb Linkmon=0 Passphrase=nuts TxPower=0
SSID. It’s time to issue a reboot
command and check our work:
reboot *Reboot*WiFly Ver 2.36, 09-27- 2012 on RN-171 MAC Addr=00:06:66:80:3a:3c Auto-Assoc servo chan=11 mode=WPA2 SCAN OK Joining servo now.. *READY* Associated! Using Static IP Listen on 8888
We’re looking good. Let’s test
that DynDNS connection. The
necessary connection details are
outlined in Screenshot 1.
CONTACT!!!
That should be enough IP
information to get us on the air. I
issued a save command to make sure
our work up to this point won’t have
to be repeated. The WLAN
configuration commands are issued
in the same way the IP commands
were issued:
Most of the WLAN parameters are
self-explanatory. The Join parameter
tells the RN-XV to attempt to associate
only with a router using servo as its
The response you see in
Screenshot 2 is the result of issuing
the get ip command via the Telnet
session we kicked off in Screenshot
1. The New Micros carrier is fine for
interfacing the RN-XV to a PC.
However, we will need to get at the
RN-XV’s transmit and receive pins.
So, it’s time to move the RN-XV back
over to the Rabbit cradle. From now
on — as long as the RN-XV is within
; SCHEMATIC 4. The LMX-SR and
LMX-LR are specialized sensor node
extensions of the LMX-ISM-242
development board.
18
February 2013
