Fc 51 Ir Sensor Datasheet ((link)) • Certified & Exclusive

When the object is near the threshold distance, the output can oscillate between HIGH and LOW, as noted in experimental testing. To mitigate this, implement software debouncing (e.g., require multiple consistent readings before triggering) or hysteresis in your code.

| Feature | FC-51 | TCRT5000 (on FC-51RA module) | | :--- | :--- | :--- | | | Obstacle avoidance / proximity detection | Line following / color detection | | Detection Range | 2 – 30 cm (adjustable) | 1 – 6 mm (very short) | | Output Type | Digital (via LM393) | Digital and Analog (often both) | | Core Sensor | Discrete IR LED + Phototransistor | Integrated TCRT5000 reflective sensor |

The transmitter IR LED constantly emits an invisible beam of infrared light. Fc 51 Ir Sensor Datasheet

The following sketch reads the state of the FC-51 sensor. It turns on the built-in Arduino LED (Pin 13) and prints a message to the Serial Monitor whenever an obstacle is detected.

Related search suggestions will be provided. When the object is near the threshold distance,

The FC-51 is a compact, low-cost infrared (IR) sensor module designed for . It operates by emitting infrared light from an IR LED and detecting the reflected light using a phototransistor. If an object is close enough, the reflected IR intensity is high, and the module outputs a digital signal (either HIGH or LOW) indicating the presence of the object.

This article serves as an exhaustive and application guide. We will dissect every parameter, explore circuit diagrams, provide code examples (Arduino), and answer frequently asked questions. The following sketch reads the state of the FC-51 sensor

| Condition | Output Pin State | Indicator LED (Red) | What it means | | :--- | :--- | :--- | :--- | | | HIGH (1 / 3.3-5V) | OFF | Path is clear | | Object detected | LOW (0 / 0V) | ON | Object is within threshold |

Illuminates when an object enters the detection range and triggers the output. Working Principle The FC-51 operates on the principle of infrared reflection.

The FC-51 is an infrared sensor module capable of detecting obstacles in front of it. It works by emitting an infrared signal (via an IR LED) and detecting the reflection (via a phototransistor). If the signal reflects off an object, the sensor outputs a digital signal.

Now, let's put the datasheet knowledge to practice. Below is a complete example of connecting the FC-51 to an Arduino Uno and using the digital output to turn on an LED or print a message to the serial monitor.