TCRT5000 Reflective Optical IR Sensor – High-Precision Object & Line Detection

The TCRT5000 Reflective Optical Sensor is a versatile IR sensor module that emits infrared light and detects its reflection from nearby objects. It is widely used in robotics, line-following robots, proximity sensors, obstacle detection, and automation systems. The module provides both analog and digital outputs, allowing easy integration with microcontrollers such as Arduino (https://electroway.org/product-category/arduino-and-accessories/arduino-boards/), NodeMcu (https://electroway.org/product-category/iot-and-smart-solutions/iot-modules/nodemcu/), and Raspberry Pi (https://electroway.org/product-category/electronic-accessories/mounts-and-cases/raspberry-pi-mounts-and-cases/).

Its compact design ensures easy mounting on PCB boards or robots, while its reflective IR technology allows accurate detection of surfaces, edges, or lines, even in varying light conditions.

🔧 Technical Specifications

• Sensor Type: TCRT5000 reflective optical IR sensor

• Operating Voltage: 3.3 V – 5 V DC

• Output: Analog voltage & digital HIGH/LOW

• Detection Distance: 1–25 mm (typical, depending on surface reflectivity)

• Emitter Type: Infrared LED

• Receiver Type: Phototransistor

• Current Consumption: <20 mA

• Applications: Line following, obstacle detection, proximity sensing, reflective object detection

🛠 Applications & Uses

• Line-Following Robots — Detect black/white lines on surfaces for autonomous navigation.

• Proximity & Object Detection — Sensing objects or obstacles in robotics and automation systems.

• DIY Electronics & Arduino Projects — Integrate with microcontrollers for interactive projects.

• Industrial Automation — Detect presence or absence of components on conveyor belts.

• Smart Home Automation — Motion detection or object presence sensing in IoT devices.

⚠ Precautions & Best Practices

• Avoid exposing the sensor to direct sunlight or strong ambient IR light, which can affect readings.

• Use the sensor within 3.3 V–5 V DC to prevent damage.

• Calibrate the sensor distance according to the reflectivity of the surface being detected.

• Mount securely and ensure proper alignment with the surface or line.

• For reliable readings, keep the emitter and phototransistor free from dust and debris.

🔗 Internal Links

• Electronics Components — https://electroway.org/product-category/electronics-components/

• Arduino & Accessories — https://electroway.org/product-category/arduino-and-accessories/

• Tools & Accessories — https://electroway.org/product-category/tools-and-accessories/

• ICs — https://electroway.org/product-category/ics/

🎥 YouTube Tutorial / Setup Guide

Watch Video:https://www.youtube.com/watch?v=-nFwk-DsySg

4. Product Summary

The TCRT5000 Reflective Optical IR Sensor is a compact, accurate, and versatile module for object detection, line following, and proximity sensing. Compatible with Arduino, NodeMcu, and Raspberry Pi, it is ideal for robotics, automation, DIY electronics, and industrial applications. Its analog and digital outputs allow seamless integration into diverse projects requiring reflective infrared detection.