The idea for the Wireless Motion Sensor projects was to display an alert on the A3BU controller when a distant motion sensor was tripped. In order to achieve this, we used Xbee wireless modules to communicate between two A3BU controllers. The first controller would simply detect when the motion sensor was being tripped. The second A3BU controller would display an alert message on its LCD when the first controller detected movement. There were four distinct parts to this project. The first was to get an A3BU to communicate with the motion sensor. The second was to set up the Xbee modules to allow communication between the two A3BUs. The third was to use the communication from the receiving Xbee in order to make the second A3BU display an alert message. Then the last part was to create a couple of mobile power sources for the two A3BU controllers.