I am in a group that is using two arduino's, two shields, and two xbee's. Each arduino will communicate wirelessly. I am not currently working on this part of the project but will be and had a few questions. They are testing it out first trying to get a potentiometer and servo to communicate wirelessly( using this tutorial(Tutorial 9 for Arduino: Wireless Communication – JeremyBlum.com). When they try to do it wirelessly it does not work, the servo just spasms every few seconds. When they hook it up just using one arduino with the pot and servo... IT WORKS. So, my question is...are these parts below compatible with each other? Not sure what would be the problem with it not letting it communicate wirelessly but it working using just one arduino.
Arduinos:
Arduino Uno R3
Shields:
Xbee's: