Fc 51 Ir Sensor Datasheet Official

To inspire your next build, here are five practical applications:

The IR receiver captures this reflected light, causing its internal resistance to drop.

The FC-51 IR Sensor: Your Robot’s Secret "Spidey Sense" Ever wondered how those clever little vacuum robots avoid tumbling down the stairs or crashing into your favorite vase? Most of the time, they’re using a "Spidey sense" powered by infrared light. At the heart of many beginner DIY projects is the FC-51 IR Obstacle Avoidance Sensor

Receives the reflected IR light from an object.

: The receiver tube picks up these reflected waves. Fc 51 Ir Sensor Datasheet

Digital signal (TTL level). It outputs a Low logic level when an obstacle is detected and a High level when the path is clear.

Understanding the FC-51 IR Obstacle Avoidance Sensor: A Comprehensive Datasheet Guide

: The transmitter continuously sends out IR waves at a specific frequency.

The FC-51 module features a simple 3-pin male header interface, making it highly compatible with standard breadboards and jumper wires. To inspire your next build, here are five

The FC-51’s 3.3V to 5V compatibility makes it an easy match for most platforms.

The following code configures Pin 2 as an input, monitors the sensor status, and prints the result to the Serial Monitor.

Even a simple sensor like the FC-51 can exhibit issues. Here’s a troubleshooting guide:

If the reflected intensity is high enough, the OUT pin goes LOW and the onboard "Status LED" lights up. Infrared Sensors Specs, Operation, Types and Applications At the heart of many beginner DIY projects

The module features a standard 3-pin male header for seamless connectivity to microcontrollers like Arduino and ESP32: External voltage input (Connect to 3.3V or 5V source). GND: Ground reference (0V).

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