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\section{Our Prototype}  Our controller is not an example of The Google Earth Phidget Controller utilises  a tangible number of  interface devices:  Circular Touch - Used for panning around the scene  Joystick - Pivots the camera  Slider - Used to zoom in and out  RFID Reader - Reads the location tags  Pressure Sensor - Used as a button to enable RFID programming mode  LED Screen  - deal with it Displays relevent information based on input