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Key Features:

• 8 individual infrared (IR) sensors on a single board

• Detects black lines on white surfaces and vice versa

• Works with Arduino, ESP32, Raspberry Pi, STM32, and robotics kits

• Adjustable sensitivity via onboard potentiometers

• Digital or analog output options (depending on model)

• Easy to mount on robot chassis for line-following applications

Product Description (Detailed):

The 8-Channel Line Tracking Sensor Module is a compact, efficient solution for building intelligent robotic cars, line followers, and path tracing bots. It features 8 IR transmitter-receiver pairs, each capable of detecting high-contrast lines, typically black on white backgrounds.

Each sensor’s output can be connected to a microcontroller's GPIO pin, and digital logic levels are used to determine if the sensor detects a line. The onboard sensitivity control allows you to fine-tune performance for different surface materials and lighting conditions.

This module is ideal for advanced robot navigation, path recognition, and obstacle detection projects.

Technical Specifications:

How to Use:

1. Connect VCC and GND to 5V and GND on Arduino.

2. Connect D0–D7 pins (sensor outputs) to Arduino digital input pins.

3. Read values using digitalRead() in your Arduino code.

4. Use sensor values to decide robot direction (left/right/straight).

5. Adjust each potentiometer to fine-tune detection accuracy.

Example Use: Build a smart robot car that can follow black tape on a white surface using real-time sensor feedback.

Example Circuit (Arduino Integration):

• The 8-channel line tracking sensor can easily be interfaced with platforms like Arduino using the digital input pins to read the sensor's output.
• The sensors can be connected to an Arduino board’s digital input pins (for example, pins 2-9), and the Arduino code can monitor the states of the sensors to control motors for line-following.

Arduino Code Concept Example:

// Define the sensor pins
int sensorPins[] = {2, 3, 4, 5, 6, 7, 8, 9}; // Digital pins connected to sensor
int sensorState[8]; // Array to store sensor states

void setup() {
  for (int i = 0; i < 8; i++) {
    pinMode(sensorPins[i], INPUT); // Set all sensor pins as inputs
  }
  Serial.begin(9600);
}

void loop() {
  // Read all sensor values
  for (int i = 0; i < 8; i++) {
    sensorState[i] = digitalRead(sensorPins[i]);
  }

  // Print sensor states to Serial Monitor
  for (int i = 0; i < 8; i++) {
    Serial.print(sensorState[i]);
    Serial.print(" ");
  }
  Serial.println();
  
  // Based on sensor states, you can control motors to follow the line
  // (code for motor control logic goes here)
  
  delay(100); // Small delay before next loop
}

Applications:

• Line follower robots

• Path recognition systems

• Robotic automation and navigation

• Obstacle and edge detection

• DIY electronics, STEM kits, and school robotics

• Arduino, ESP32, and Raspberry Pi robotics

Package Includes:

• 1 × 8-Channel IR Line Tracking Sensor Module