Infrared Line Tracing Module(TCRT5000)

The product is an infrared transmission and reception sensor module designed specifically for line tracing applications. It comes equipped with an adjustable variable resistor, allowing for fine-tuning of sensitivity.

The part of the sensor that detects is highlighted in red in the accompanying image, while the yellow part represents the sensitivity adjustment component.

Specifications

Operating Voltage: 3V ~ 5V
Output Type: Analog, Digital

Example Required Hardware

Arduino board
Jumper cables
TCRT5000 module

Connection

Arduino	TCRT5000
5V	V+
GND	G
D2, A7	S

Example Code

const int analogPin = A7; // Analog pin used to connect the sensor
const int digitalPin = 2; // Digital pin used to connect the sensor

void setup() {
  pinMode(digitalPin, INPUT); // Set the digital pin as input
  Serial.begin(9600); // Start serial communication at 9600 baud
}

void loop() {
  Serial.print(analogRead(analogPin)); // Read the analog value from the sensor
  Serial.print("\t"); // Print a tab for formatting
  Serial.println(digitalRead(digitalPin)); // Read and print the digital value from the sensor
  delay(100); // Wait for 100 milliseconds before the next reading
}

Execution Results

When nothing is close to the sensor

When a black object is near the sensor

When a white object is near the sensor