Line Tracking Sensor 5 Channel Module

Line Tracking Sensor 5 Channel Module

Sensors
DET511
Part.No: HW-871
€5.95
In Stock
Immediate Dispatch
HW-871 Line Tracking Sensor 5 Channel Module with 5× TCRT5000 infrared sensors, onboard comparator, LED indicators and anti-interference design. Supports 3.3V and 5V operation for robot line-following projects with Arduino and compatible boards.

 

The HW-871 Line Tracking Sensor 5 Channel Module (MPN: HW-871) is a 5-channel infrared line detection board built around five TCRT5000 reflective optical sensors. Each sensor emits infrared light and measures the reflected signal to distinguish between dark lines and light surfaces — or vice versa — making this module the go-to choice for autonomous line-following robots and automated guided vehicles. With five sensors arranged side by side, the module delivers high spatial resolution and fast response, eliminating the need for complex mechanical adjustments to maintain tracking accuracy.

Key Features

  • 5× TCRT5000 Infrared Sensors: Five independent sensing elements working in parallel → wider detection coverage and faster line acquisition compared to single- or dual-channel modules.
  • Onboard Comparator: Integrated signal conditioning with comparator circuit converts analogue reflectance into clean digital output signals → reliable, noise-free readings directly readable by a microcontroller.
  • LED Indicators: Each channel has a status LED → instant visual feedback during setup and debugging without needing a multimeter or oscilloscope.
  • Anti-Interference Design: Filtered to suppress ambient visible light → stable performance under indoor lighting and mild sunlight conditions.
  • Dual Voltage Support (3.3V / 5V): Works with both 3.3V and 5V logic systems → compatible with a wide range of microcontroller platforms without level shifting.
  • Wide Operating Temperature Range (−40 °C to +85 °C): Industrial-grade sensor rated for harsh environments → suitable for outdoor robotics and workshop environments.

Compatibility

  • Arduino UNO / Nano / Mega (5V): Connect directly to 5V supply and digital I/O pins — no additional components required.
  • ESP32 / ESP8266 / Raspberry Pi (3.3V): Use the 3.3V supply rail; digital outputs are 3.3V-compatible, making direct connection safe for low-voltage GPIO pins.
  • Any microcontroller platform accepting 3.3V–5V supply and digital input signals.

Typical Applications

  • Line-following robots: The classic use case — program your robot to follow a black line on a white surface (or the reverse) with smooth, high-resolution tracking thanks to 5 channels.
  • Maze-solving robots: Five-channel resolution allows the robot to detect junctions, T-intersections and dead ends reliably.
  • Automated guided vehicles (AGVs): Industrial-style path following on factory floors or educational lab conveyor demos.
  • Edge detection: Detect the edge of a table or platform to prevent a robot from falling off.
  • Encoder / position sensing: Detect contrast patterns on a rotating disk or belt for basic speed or position feedback.

Technical Specifications

ParameterValue
Sensor TypeTCRT5000 Reflective Infrared Optical Sensor
Number of Channels5
Supply Voltage3.3V / 5V
Operating Temperature−40 °C to +85 °C
MPNHW-871

Frequently Asked Questions

Q: Can I use this module with a 3.3V board like ESP32 without damaging it?
A: Yes. The module supports 3.3V supply voltage natively, so you can power it from the 3.3V rail of your ESP32 or Raspberry Pi and connect the outputs directly to GPIO pins without any level-shifting circuitry.

Q: Does the module output digital or analogue signals?
A: The onboard comparator processes the raw sensor signal and produces digital (HIGH/LOW) outputs per channel, which are directly readable by any microcontroller digital input pin.

Package Contents: 1× HW-871 Line Tracking Sensor 5 Channel Module

⚠ Note: Sensor detection distance and threshold sensitivity depend on surface reflectivity and ambient light conditions. Fine-tune the comparator (if a potentiometer is fitted) or adjust mounting height during initial setup for best results.
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