Fc 51 Ir Sensor Datasheet [verified] -

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.

This article serves as an exhaustive FC-51 IR Sensor Datasheet and application guide. We will dissect every parameter, explore circuit diagrams, provide code examples (Arduino), and answer frequently asked questions.

void loop() sensorValue = digitalRead(irSensorPin); Fc 51 Ir Sensor Datasheet

4. Working Principle: How the FC-51 Detects Objects

The FC-51 module works on the principle of reflective infrared sensing.

Note: This is a synthesized feature datasheet. For official specifications, refer to the FC-51 vendor datasheet or test with your specific board version, as clones vary. The Complete Guide to the FC-51 IR Sensor:

If your sensor is Active HIGH (detects object by outputting HIGH):

Simply change the condition to:

4. Hardware Features

• TCRT5000 Sensor: Combines an IR emitter and a phototransistor in a leaded package.
• LM393 Comparator: Compares the analog signal from the phototransistor with a reference voltage to provide a clean digital output.
• Potentiometer: A small screw on the board allows you to adjust the sensitivity (detection distance).
• Indicator LEDs:

  Analysis of "FC-51 IR Sensor Datasheet"

  Overview — what the FC-51 is and why it matters

  The FC-51 is a small, low-cost infrared (IR) proximity and line-detection module built around a matched IR emitter and receiver pair and simple signal-conditioning electronics. Its appeal is immediate: accessible to hobbyists, useful in robotics and embedded projects, and omnipresent in low-budget sensing tasks. That ubiquity is the module’s strength and its trap — inexpensive, well-known, and often used without a full appreciation of its limits. TCRT5000 Sensor : Combines an IR emitter and

  Part 11: Where to Buy and How to Identify Counterfeit Units

  Authentic FC-51 modules are manufactured by various Chinese factories, but counterfeit or substandard copies exist.