Hi,
I have a Xbee module attached to a WIRELESS shield that is in turn attached to a ETHERNET R3 board connected to my PC via USB with a USB2SERIAL. I would like to know how to configure the Xbee (for e.g. change the network ID of) when it is in this setup?
With X-CTU, i get a 'Unable to open com pport' message. I also tried following this link but no luck that way either.
The reference page at http://arduino.cc/en/Guide/ArduinoWirelessShield mentions we can do this with code, but I can't figure out how to do this. Could someone please provide any some directions as to how we may go about this?
I did what you're trying to do once; notice I only did it once. What I did was to put the arduino into reset and I used the 3V supply off the arduino, ground, rx, and tx, then used xctu through the arduino ftdi chip. I think that's what you were trying to do with the shield. I didn't have an XBee shield or a usb dongle for the XBee at the time, and I was using the previous version of the arduino (not a uno).
It worked, but my usb dongle arrived a day or so later and I never tried it again. I couldn't find anywhere that anyone has used the new UNO for this kind of thing; it may be that it doesn't work the same way. If you have time constraints and can't wait around for a usb dongle to show up, you can try setting up code to talk to the XBee.
Use software serial to mimic a serial port on a couple of different pins, maybe 2 and 3. Then echo characters from the hardware serial to the new software serial port and you should be able to talk to the xbee using AT commands. Painful process, but it could be done.