Fc - 51 Ir Sensor Datasheet

The FC-51 IR Obstacle Avoidance Sensor is a popular and cost-effective module used widely in robotics for proximity detection and obstacle avoidance. It operates on the principle of infrared (IR) light reflection, utilizing an IR emitter and receiver pair alongside an LM393 comparator to provide a simple digital output. FC-51 IR Sensor Technical Specifications

Where to find official datasheet

Search the module name "FC-51 IR sensor datasheet" plus the vendor name or part number printed on the PCB; look for PDF datasheets from electronics suppliers or manufacturers. Fc 51 Ir Sensor Datasheet

Recommendation: The FC-51 IR sensor is recommended for projects that require simple proximity sensing, obstacle detection, or line following. However, for more complex applications or longer detection ranges, alternative sensors may be more suitable. The FC-51 IR Obstacle Avoidance Sensor is a

Output Signal: Digital signal (LOW when an obstacle is detected, HIGH when the path is clear). Infrared Detection : The FC-51 IR sensor uses

8. Sensitivity Adjustment & Calibration

To reliably detect objects at different distances, use the onboard potentiometer. Follow these steps:

The FC-51 features a simple 3-pin male header for quick connections. VCC: Power input pin (connects to 3.3V - 5V). GND: Ground pin (0V).

1. Infrared Detection: The FC-51 IR sensor uses infrared radiation to detect objects or obstacles.
2. Adjustable Sensitivity: The sensor has an adjustable potentiometer to adjust the sensitivity of detection.
3. Digital Output: The sensor provides a digital output signal ( HIGH/LOW) indicating the presence or absence of an object.
4. Operating Voltage: The sensor operates at a voltage range of 3.3V to 5V DC.
5. Current Consumption: The sensor consumes a low current of around 20-30mA.
6. Detection Range: The detection range of the FC-51 IR sensor is approximately 2-30cm (adjustable).

Pro Tip: 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.