Fc 51 Ir Sensor Datasheet Online

The Complete Guide to the FC-51 IR Sensor: Datasheet, Pinout, Working, and Applications

Introduction

In the world of embedded systems and robotics, obstacle detection is one of the most fundamental requirements. Among the myriad of sensors available for this task, the FC-51 IR Sensor Module stands out as one of the most popular, affordable, and reliable choices for hobbyists and professionals alike.

void loop() int sensorState = digitalRead(sensorPin); Fc 51 Ir Sensor Datasheet

Operating Voltage: 3.0V to 6.0V DC (Typically used at 3.3V or 5V). Current Consumption: ~23 mA at 3.3V. ~43 mA at 5.0V. The Complete Guide to the FC-51 IR Sensor:

Q4: Why does my sensor detect objects even when nothing is there? A: You may have set the sensitivity too high. The sensor is detecting the floor or table surface. Turn the potentiometer counter-clockwise until the detection stops. Current Consumption: ~23 mA at 3

Rating: 4.5/5

Applications:

6. Timing & Response

| Parameter | Value | |-----------|-------| | Response Time | ~2–10 ms | | Output Frequency | ~50–100 Hz (typical) | | Settling Time after power-up | <50 ms |

Arduino Sketch (Detecting Obstacle):

/*
   FC-51 IR Sensor - Basic Obstacle Detection
   Assumption: Sensor outputs LOW when object detected.
   Adjust logic if your sensor is ACTIVE HIGH.
*/
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