Turn on and off Led using Tracking Sensor Module

Hardware Required

Introduction

In this project, we have used tracking sensor same as Obstacle Avoidance Sensor which absorbs black color and detects its path and turns LED ON when it detects color other than black.

HARDWARE REQUIRED

Name: Turn on and off Led using Tracking Sensor Module
SKU: 2874
Availability: InStock

SOFTWARE REQUIRED

Arduino IDE 1.8.5 (programmable platform for Arduino)

Click To Download: https://www.arduino.cc/en/Main/Software

SPECIFICATIONS

Tracking Module

A tracking sensor has the same principle with an obstacle avoidance sensor but has small transmitting power. The sensor detects if a light reflecting or absorbing area is in front of it. It shows which of the 2 areas it is via digital output. The Sensitivity (minimum range) of the sensor can be adjusted by the controller. This behavior can be used to automatically follow a line with a robot.

Arduino Uno

CIRCUIT CONNECTION

Connect GND of Tracking Module with GND of Arduino Uno.
Connect VCC of Tracking Module with Pin 5V of Arduino Uno.
Connect Pin Signal of Tracking Module with Analog Pin A5 of Arduino Uno.
Connect the positive terminal of LED with Digital Pin 13 of Arduino Uno.
Connect the negative terminal of LED with GND of Arduino Uno.

CODE

Click to download the code: https://drive.google.com/open?id=1VuRslQz8nmwxWGc9ZmYSoJK_AJ_K02M0

int sensorPin = A5; // select the input pin

int ledPin = 13; // select the pin for the LED

int sensorValue = 0; // variable to store the value coming from the sensor

/* The setup() function is called when a sketch starts. It is used to initialize variables, pin modes, start using libraries, etc. This function will only run once, after each power up or reset of the Arduino board. */

void setup()

{

pinMode(ledPin, OUTPUT);

Serial.begin(9600);

}

/* The loop() function executes the program repeatedly until Specified. */

void loop()

{

sensorValue = analogRead(sensorPin);

if (sensorValue <= 100)

{

digitalWrite(ledPin, HIGH);

//delay(sensorValue);

}

else

{

digitalWrite(ledPin, LOW);

//delay(sensorValue);

}

Serial.println(sensorValue, DEC);

delay(200);

}

WORKING

Welcome to Arduino Based Project which consists of Tracking Module. The basic principle of the module is being described here. When the infrared transmitter emits rays to a piece of paper, if the rays shine on a white surface, they will be reflected and received by the receiver, and pin S will output low level; If the rays encounter black lines, they will be absorbed, thus the receiver gets nothing, and pin S will output high level.

In this project, we will use a tracking module and an LED attached to pin 13 of the Uno board to build a simple circuit to make a tracking light. Since an LED has been attached to pin 13, connect the pin out to Analog Pin A5 of Uno board. When the tracking sensor detects reflection signals (white), the LED will be on. Otherwise, it will be off (black line).