Fc 51 Ir Sensor Datasheet [repack]

Use a small ceramic screwdriver. Power the module and place a white sheet of paper at your desired detection distance. Turn the pot slowly until the red LED just turns on. Then move the paper 1cm closer/further to verify.

Direct sunlight or strong incandescent lighting contains high levels of infrared radiation. This environmental IR noise can saturate the photodiode, leading to false triggers. It is best used indoors or in shaded enclosures.

This comprehensive guide serves as an extended datasheet and technical manual for the FC-51 IR sensor module. It covers physical specifications, pin configurations, internal circuitry, operating mechanisms, and practical programming examples. Module Overview and Specifications Fc 51 Ir Sensor Datasheet

If your sensor is not behaving as expected, verify the following:

IR Infrared Obstacle Avoidance Sensor Module | FC-51 for Arduino Use a small ceramic screwdriver

Because the sensor relies on light reflection, its effective range is highly dependent on the target object's color and texture.

If the sensor output flickers or fails to trigger, use a small screwdriver to adjust the onboard potentiometer until the Obstacle LED reliably responds to your target object. Then move the paper 1cm closer/further to verify

Connecting the FC-51 to a microcontroller is straightforward: