I want a multipoint-to-point network, and I hope to accomplish this with an XBee. However, I'm having some problems getting it to work. I have a program that's just to test it out, since I don't have a USB Explorer or anything like that. This program indicates that it's stuck just trying to get to command mode (times out).
I'm using the Arduino UNO SMD version, if that makes a difference. I have an LCD attached, just like in the example code, and the Arduino's TX pin goes through a voltage divider bringing it down to 3.3V, the RX pin is connected directly to the arduino. In the code, the analogRead is letting me know how much voltage is going from the TX pin.
What I suspect is happening is, because I'm getting power from USB, it's taking the input that would go to the XBee, and directing it to the computer. I'm not sure since I don't actually have a way to test this. I read that I should get an external power supply instead, but I don't have one yet. Is there a way I can mess with the jumper settings so that the TX/RX pins don't direct to the USB, if this is indeed the case?
sandbox.pde (2.85 KB)