So by rotating the potentiometer you can set the detection distance. Note: The single potentiometer on most of the IR sensors is used to set the sensitivity of the sensor or the distance up to which it detects the obstacle. IR receiver constantly sends digital data in the form of 0 or 1 to the Vout pin of the sensor. Whereas the work of the IR receiver is to receive these transmitted infrared waves. The work of an IR transmitter or Infrared transmitter is to transmit the infrared waves. Basics of IR SensorĮvery IR Sensor or Infrared Sensor has two main parts. But unlike sunlight/visible light, the human eye cannot see IR waves. Just like visible light, Infrared wave/light is part of the electromagnetic spectrum. Hence commonly used as the main sensor in a line follower robot. It is also used to differentiate between black and white colors. IR Sensor is a device that detects the object in front of it using IR or Infrared waves.
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