Fc 51 Ir Sensor Datasheet File

| FC-51 Pin | Arduino Uno Pin | | :--- | :--- | | VCC | 5V | | GND | GND | | OUT | Digital Pin 7 |

(Optional: Connect an LED via a 220Ω resistor to Pin 13 for onboard LED indication.)

Simply change the condition to:

if (sensorValue == HIGH) { // Object detected

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.

| Parameter | Min | Typ | Max | Unit | |-----------|-----|-----|-----|------| | Supply voltage | 3.3 | 5.0 | 5.5 | V | | Output current (sink) | - | 10 | 20 | mA | | Detection range (white) | 2 | 15 | 30 | cm | | Detection range (black) | 1 | 2 | 5 | cm | | Output LOW voltage | 0 | - | 0.4 | V | | Output HIGH voltage | Vcc-0.5 | - | Vcc | V |

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 FC-51 IR Obstacle Sensor is a cheap, widely available active infrared proximity sensor used heavily in robotics and automation. It operates as a simple binary switch, outputting a LOW or HIGH digital signal depending on whether it detects reflected light from an object. 

Below are the in-depth technical specifications, pinout architecture, and critical operating limitations mapped directly from its standard industrial datasheet footprint.  📊 Core Technical Specifications 

The operational limits of the module heavily dictate its deployment in embedded systems:  Operating Voltage: 3.0V to 6.0V DC (Standard TTL levels) Current Consumption: ~23 mA at 3.3V | ~43 mA at 5.0V

Theoretical Detection Range: 2 cm to 30 cm (Subject to target reflectivity) Effective Detection Angle: ~35° field of view

Active Signal Output: LOW logic level when an obstacle is detected

Inactive Signal Output: HIGH logic level when the environment is clear

Core Components: Infrared LED emitter, Photodiode receiver, and an LM393 Voltage Comparator IC.  🔌 Pinout Configuration 

The module features a standard 3-pin male header for seamless connectivity to microcontrollers like Arduino and ESP32:  VCC: External voltage input (Connect to 3.3V or 5V source). GND: Ground reference (0V). Fc 51 Ir Sensor Datasheet

OUT: Digital output pin that connects straight to a microcontroller's GPIO.  ⚡ Hardware Layout and Adjustments 

The physical PCB board hosts several distinct elements designed to assist in calibration:  distance with ir sensor fc-51 - Arduino Forum

The FC-51 IR Obstacle Avoidance Sensor is a popular and cost-effective module used widely in robotics for proximity detection and obstacle avoidance. It operates on the principle of infrared (IR) light reflection, utilizing an IR emitter and receiver pair alongside an LM393 comparator to provide a simple digital output. FC-51 IR Sensor Technical Specifications

The following technical data is derived from standard FC-51 datasheets:

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.

Detection Range: 2cm to 30cm (adjustable via onboard potentiometer). Detection Angle: ~35°.

Output Type: Digital (Logic 0 when an obstacle is detected, Logic 1 when clear). Dimensions: PCB Size: 3.1 cm x 1.4 cm. Overall: 4.5 cm x 1.4 cm x 0.7 cm. Pinout and Interface

The module typically features a 3-pin male header for easy connection to microcontrollers like Arduino or Raspberry Pi: Description VCC Power Supply 3.3V - 5V DC input. GND Common ground connection. OUT Digital Output Goes LOW when an object reflects IR light. Working Principle

The FC-51 sensor contains two primary optical components: an IR Transmitter (LED) and an IR Receiver (Photodiode). FC-51 IR Proximity Sensor - am I doing it wrong?

Key Features:

Technical Specifications:

Applications:

Datasheet:

If you're looking for the official datasheet of the FC-51 IR sensor, you can search for it on various online platforms, such as:

Keep in mind that the datasheet may vary depending on the manufacturer or the specific version of the sensor.

Overview

The FC-51 IR sensor is a reflective infrared sensor that can detect the presence of objects within a certain range. It is commonly used for obstacle detection, line following, and other applications.

Datasheet Analysis

The datasheet for the FC-51 IR sensor provides the following key specifications:

Features

The FC-51 IR sensor has the following features:

Applications

The FC-51 IR sensor can be used in various applications, including:

Limitations

The FC-51 IR sensor has some limitations:

Conclusion

The FC-51 IR sensor is a reliable and easy-to-use infrared sensor module suitable for various robotics and automation projects. Its simple digital output and adjustable sensitivity make it a popular choice among hobbyists and professionals. However, its limited range and potential interference from environmental factors should be considered when designing applications.

Rating: 4.5/5

Recommendation: The FC-51 IR sensor is recommended for projects that require simple proximity sensing, obstacle detection, or line following. However, for more complex applications or longer detection ranges, alternative sensors may be more suitable.

The FC-51 is a low-cost infrared (IR) obstacle avoidance sensor module commonly used in robotics for short-range detection. It functions by emitting an IR signal from a transmitter LED; if an object is within range, the IR light reflects back and is detected by a receiver phototransistor, triggering a digital signal. Core Technical Specifications Specification Operating Voltage 3.0V – 6.0V DC Detection Range 2cm – 30cm (Adjustable via onboard potentiometer) Detection Angle Approximately 35° Current Consumption ~23 mA at 3.3V / ~43 mA at 5.0V Output Type

Digital signal (LOW when obstacle detected, HIGH when clear) Dimensions PCB: 3.1 cm x 1.4 cm; Overall: 4.5 cm x 1.4 cm x 0.7 cm Interface and Components Pinout: VCC: Power input (3.3V - 5V). GND: Ground connection. OUT: Digital output pin. Onboard Indicators: Power LED: Remains lit while the module is powered.

Obstacle LED: Lights up only when an object is detected within the set range.

Adjustment: A multi-turn potentiometer (blue trim pot) is used to increase (clockwise) or decrease (counter-clockwise) the sensitivity and detection distance. Operational Notes

is a popular, low-cost infrared (IR) obstacle avoidance sensor module commonly used in robotics and DIY electronics for proximity detection. It operates by emitting an IR signal and detecting the reflection from nearby objects. Technical Specifications

The module is designed for simple "object vs. no object" detection rather than precise distance measurement. Specification Operating Voltage 3.0V – 6.0V DC Current Consumption ~23 mA at 3.3V; ~43 mA at 5.0V Detection Range 2cm – 30cm (adjustable via potentiometer) Detection Angle LM393 Voltage Comparator Output Type Digital (HIGH/LOW) Board Dimensions ~3.1cm x 1.4cm (PCB) Pinout and Indicators

The module features a standard 3-pin male header for easy interfacing.

FC-51 IR Proximity Sensor - am I doing it wrong? - Arduino Forum

The FC-51 is a small, digital output infrared sensor module designed for object detection. It works on the principle of reflected infrared light. The module consists of two main parts:

When an object comes within the sensor’s field of view, the IR light bounces off the object and into the phototransistor. The onboard comparator circuit (usually an LM393 chip) then processes the signal and outputs a clean HIGH or LOW digital signal, which can be read directly by a microcontroller. | FC-51 Pin | Arduino Uno Pin |

The FC-51 is an analog/digital infrared (IR) sensor module designed for short-range obstacle detection (2 cm to 30 cm). Unlike Sharp GP2Y0 series sensors (which give analog distance values), the FC-51 typically outputs a simple TTL digital signal (HIGH/LOW) when an object is within a preset threshold.

Key Components on Board: