Blue circuit board with black sensor and four metal pins ShillehTek TCRT5000 IR sensor

TCRT5000 IR Reflective Line Follower Sensor for Arduino Robots

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TCRT5000 IR reflective sensor for Arduino robots, offering high-contrast line detection and onboard sensitivity trim; dual AO/DO outputs make it ideal for line-following, short-range obstacle sensing.

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Overview

Product Overview

The TCRT5000 IR Reflective Line Follower Sensor for Arduino robots gives your project reliable short-range optical sensing by emitting an IR beam and measuring reflections to detect lines, objects or surface contrast; ideal for line-following robots, AGVs, limit sensing and counting tasks. It features a precision multi-turn potentiometer for calibration (typical 1–25mm), dual outputs (digital DO and analog AO) for simple switches or gradient readings, an on-board LED for visual status, and a stable LM393 comparator for clean, noise-resistant signals.

Questions & answers

Frequently asked questions

Yes. The module is designed for Arduino robot projects and provides digital DO and analog AO signals that Arduino boards can read for line, object, or surface-contrast detection.
ShillehTek supplies IoT modules pre-soldered for jumper-wire or breadboard setup, so header soldering is not required. Connect power and ground, then read DO or AO and adjust the multi-turn potentiometer for the target surface.
It has dual outputs: digital DO from the LM393 comparator for a thresholded on/off signal, and analog AO for reflected-intensity or gradient readings. The onboard LED gives a visual status indication during testing.
Yes. It is intended for line-following robots and AGVs by sensing surface contrast with reflected infrared light at short range. Use DO for simple line detection, or AO when the control code needs more nuanced readings.
No. This reflective IR module is for short-range sensing, with typical calibration around 1–25 mm. For distant objects, transparent targets, or surfaces with poor IR reflection, choose a different proximity or distance sensor.

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What's included

Features & Specs

IR Reflective Sensor Detects surface reflectivity using an infrared emitter and phototransistor for reliable line following.

Adjustable Sensitivity Onboard multi-turn potentiometer lets you fine-tune detection distance to suit different floor materials.

Digital and Analog Outputs Provides a DO switch for simple on/off triggers and an AO pin for proportional reflectance readings.

LM393 Comparator Includes a stable LM393 comparator for clean logic signals and reduced false triggers during motion.

Short-Range Detection Optimized for close-range sensing (typical detection up to the low tens of millimeters) on high-contrast lines.

Built-in Indicator LED Integrated LED lights when triggered to enable quick visual diagnostics without tools.

Non-Contact Limit Switch Operates as a contact-free optical switch ideal for wear-free endstop and object-detection tasks.

Reference

Documents

Full Product Manual ShillehTek TCRT5000 IR Reflective Line Follower Sensor for Arduino Robot | ShillehTek Product Manual In-depth setup guide with wiring, code examples, and troubleshooting.

Datasheet

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