You asked: What is the requirement of the line follower robot?

Sensing a line and maneuvering the robot to stay on path, while constantly correcting wrong moves by using feedback mechanism forms a simple and effective closed loop system.

What is the need to build a line follower?

It must be easily programmable without a complicated IDE or programmer. It must be powerful enough for expandability. It should run off a simple power source. It should be able to follow a line or a wall, and avoid obstacles.

Why do we need a line follower robot?

The sensor based black line follower robots are one of the most basic robots used to follow black line on white background or vice versa. These robots may be used to in various industrial and domestic applications such as to carry goods, floor cleaning, delivery services and transportation.

What is a line follower used for?

The Line Follower sensor is an add-on for your RedBot that gives your robot the ability to detect lines or nearby objects. The sensor works by detecting reflected light coming from its own infrared LED.

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How do you become a line follower robot?

Line Following Robotic Vehicle Circuit Working

  1. Initially draw the path on a light colored surface with black color tape.
  2. Place the robot on the floor.
  3. Now power on the circuit.
  4. Robot moves in the specified path.
  5. When it moves out of path, sensors check it and automatically adjust the robot.

How does a line follower robot work?

Line follower robot senses black line by using sensor and then sends the signal to arduino. Then arduino drives the motor according to sensors’ output. Here in this project we are using two IR sensor modules namely left sensor and right sensor. When both left and right sensor senses white then robot move forward.

How do I make Arduino line follower robot?


  1. Step 1: Connect the circuit as shown in the schematic.
  2. Step 2: Use the Arduino IDE to write your own code.
  3. Step 3: Upload your code to the Arduino and connect it to the batteries or you can even use a power bank to run the Arduino.
  4. Step 4: Test it on a black path.

How many IR sensors at least are required for a line follower robot?

To detect any line minimum two sensors are required [7]. Using these two sensor a robot can easily follow a straight line or simple wavy line.

Which sensor is best for building line follower robot?


For line sensing operation, IR sensors are the one which are widely used for the development of a line follower robot. There are some basic things to follow where white surface of the black line reflects light and the black line receives it after the transmission.

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How do I make a line following robot without Arduino?

Line Follower Robot Without Arduino or Microcontroller

  1. Step 1: Collect the Material. Two IR sensor. Two Dc geared motor 100/150 RPM. …
  2. Step 2: Connect the Circuit. Here two circuit are shown 1st is on breadboard and other is schematic. …
  3. Step 3: L Have a Video for You. This is youtube link so see this video… …
  4. 8 Comments. Abhi909.

Is a line follower A analog sensor?

It shines a beam of infrared light out onto the object, and measures how much light is reflected back. The Line Tracking Sensor is an analog sensor, and it returns values in the range of 0 to 4095. Darker objects reflect less light, and are indicated by higher numbers.

How do line sensors work?

Line sensors detect the presence of a black line by emitting infrared (IR) light and detecting the light levels that return to the sensor. … The device will emit IR light, and the sensor will capture the light level that is reflected from the surface underneath it.

How long does it take to make a line following robot?

A quick and easy tutorial to build a line follower robot in as little as 10 minutes.

How do I use Arduino IR sensor?

The connections for the IR sensor with the Arduino are as follows: Connect the negative wire on the IR sensor to GND on the Arduino. Connect the middle of the IR sensor which is the VCC to 5V on the Arduino. Connect the signal pin on the IR sensor to pin 8 on the Arduino.

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What is Arduino Robotics?

The Arduino Robot is the first official Arduino on wheels. The robot has two processors, one on each of its two boards. The Motor Board controls the motors, and the Control Board reads sensors and decides how to operate. Each of the boards is a full Arduino board programmable using the Arduino IDE.

How Bluetooth robot is controlled?

To control the robot from an Android phone, download the bluetooth rc car app on google play store. Then pair the bluetooth module from the settings. Then connect it from the app. Test the robot by pressing the buttons.

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