TCRT5000 IR Line Tracking Sensor Module

Overview

The TCRT5000 IR Line Tracking Sensor Module is one of the most widely used sensors in educational robotics and automation projects. It detects differences in surface reflectivity by transmitting infrared light and measuring the reflected signal. White surfaces reflect more infrared light than black surfaces, making the module ideal for line-following robots.

The module includes an adjustable sensitivity potentiometer, power indicator LED, detection status LED, and an LM393 comparator for stable digital output. It is fully compatible with Arduino, ESP32, STM32, Raspberry Pi (with ADC), and other microcontroller platforms.

Specifications

Sensor IC: Vishay TCRT5000 Reflective Optical Sensor Comparator IC: LM393 Dual Voltage Comparator Sensor Type: Infrared Reflective Optical Sensor Operating Voltage: 3.3 V to 5 V DC Current Consumption: Approximately 15–20 mA Detection Distance: Approximately 1 mm to 25 mm Infrared Wavelength: 950 nm Output Type: Analog Output (AO), Digital Output (DO) Digital Output Level: LOW when object or reflective surface is detected, HIGH when no object is detected Sensitivity Adjustment: Onboard Potentiometer Interface: VCC, GND, AO (Analog Output), DO (Digital Output) Indicator LEDs: Power LED, Detection Status LED Response Time: Less than 1 ms Module Operating Temperature: -25°C to +85°C PCB Dimensions: Approximately 32 × 14 mm Weight: Approximately 2–4 g