High Precision Short Range IR Distance Sensor

	Detect obstacles between 4cm to 30cm
	Provides reading directly in millimeters
	Uses Sharp GP2D120 sensor
	Uses I2C bus digital interface to connect to NXT
	Maximum current consumption: 30mA at 4.7V This sensor has built-in calibrations to provide high resolution readings. When not in use, the sensor can be powered down to conserve battery.