IR OBSTACLE SENSOR MODULE Low Cost is based on a very simple principle. It can detect obstacles in a range of 10 to 30 cm. his sensor can be used for most indoor applications where no ambient light is present. The IR light sent by the sensor is reflected back by objects. The detecting range can be adjusted and its prone to external light. TTL output is high whenever it sense an obstacle. The green indicator light on the circuit board indicates object detection.
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