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An LED (Light Emitting Diode) is a semiconductor that emits light when current is passed through it. LEDS are very efficient and are used in many household items including light bulbs and television screens.
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A Sound Sensor is a sensor that outputs an analog signal based on the amount of ambient sound that is present. The Sound Sensor is programmed using a value between 0 and 100, where 0 is the softest sound that can be detected and 100 is the loudest.
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A Position Servo is a motor that will turn to a specific angle from 0 to 180 degrees.
A Rotation Servo is a motor that will rotate continuously until turned off.
Servo Motors are very precise motors.
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A Light Sensor is a sensor that detects ambient light. Light Sensors can be wither digital or analog. The Light Sensor in your ITEEA ExCITE Robotics Systems is Digital and will report a value of 1 or 0 (ON or OFF)