Fc 51 Ir Sensor Datasheet [exclusive]

A small blue multi-turn potentiometer resides on the board. Turning it clockwise increases the detection range; turning it counterclockwise decreases the range.

GPIO.setmode(GPIO.BCM) SENSOR_PIN = 17 GPIO.setup(SENSOR_PIN, GPIO.IN)

The table below compiles the core specifications for the FC-51 module:

The reflected IR light is captured by the onboard IR receiver (a black photodiode). Fc 51 Ir Sensor Datasheet

If you are planning to integrate this sensor into a specific design, let me know:

Keep ambient IR low, adjust the potentiometer for your target reflectivity, and always confirm the pinout before powering up.

If the sensor is not behaving as expected, use the following troubleshooting steps: A small blue multi-turn potentiometer resides on the board

: 4.5/5

Connecting the FC-51 to an Arduino requires only three jumper wires. Below is a step-by-step guide to building a basic obstacle detection circuit. Circuit Connections →right arrow Arduino 5V FC-51 GND →right arrow Arduino GND FC-51 OUT →right arrow Arduino Digital Pin 2 Arduino Example Code

Because the sensor relies on light reflection, surface color and texture drastically impact performance: If you are planning to integrate this sensor

The LM393 comparator compares the voltage from the photodiode against a reference voltage set by the onboard potentiometer.

delay(50);

Note: The actual detection range varies based on the object's color and material. Reflective, light-colored surfaces are detected at greater distances than dull, dark surfaces. Pin Configuration (Pinout)

The module consists of several critical parts integrated into a single PCB: