Team Perfect-OR: SoonXinJia

Published October 1, 2017 © GPL3+

Line Follower Robot Kit

You'll never know how fun it is if you never try !

IntermediateWork in progress8 hours153

Things used in this project

Hardware components

L298M Motor Drive Board

IR Line Follower Sensor TCRT5000

ZK-2 Robot Kit

Software apps and online services

Arduino IDE

Hand tools and fabrication machines

Soldering iron (generic)

Story

LINE FOLLOWER ROBOT KIT

What Is It About?

Reference 1

It is a robot kit which is assembled with IR line follower sensor. IR follower sensor contains IR Receiver and IR Transmitter and it detects reflection of light. If the IR sensor detects black surface, less reflection of light occurs as black surface absorbs light. There is no reflected light ray so it will sense that there is obstacle. Robot kit then stops moving.

While if IR sensor detects white surface, more reflection of light occurs as white surface reflects light. The reflected light ray will be received by IR Receiver and voltage changes. There is no obstacle so the robot kit will keep moving.

Reference 2

Reference 3

Reference 4

Below are every component you need for the project. Instead circuito, you should have refer the components below. You can refer to circuito.io for a clear image of the components and wiring.

What Do You Need?

Arduino Uno x1

Breadboard x1

Jumper Wire M/M x1 set

Jumper Wire F/M x1 set

IR Line Track Follower Sensor TCRT5000 x3

L298N Motor Drive Board Module x1

1.5V AA Battery x6 ( =9V )

*Do not buy 9V Alkaline Battery as it is not enough to power the DC Motors*

6 AA Battery Holder ( 2 options ) x1

Option 1

Option 2

USB Mini-B Cable x1

Borderless Wire ( 2metres )

Robot Kit ( ZK-2) x1 set

Reference 5

Soldering Tool x1 Set

Screw Driver x1 Set

How You Do?

There are few steps that you need to follow :

1 Connect Power

Connect Arduino GND to Bus GND ( Breadboard -ve )

Connect Arduino Vin to Bus POS ( Breadboard +ve )

2 Connect IR Follower - A

Arduino 5V to Bus POS ( another side )

IR Follower GND to Bus GND

IR Follower DO to Arduino INT 3

IR Follower VCC to 5V side Bus POS

3 Connect IR Follower - B

IR Follower GND to Bus GND

IR Follower DO to Arduino INT 4

IR Follower VCC to 5V side Bus POS

4 Connect IR Follower - C

IR Follower GND to Bus GND

IR Follower DO to Arduino INT 5

IR Follower VCC to 5V side Bus POS

5 Connect L298M Motor Drive Board Module

MotorDriveBoard OUT 1 to DC Motor Coil 1

MotorDriveBoard OUT 2 to DC Motor Coil 2

MotorDriveBoard OUT 3 to B DC Motor Coil 1

MotorDriveBoard OUT 4 to B DC Motor Coil 2

MotorDriveBoard 12V to Vin side Bus POS

MotorDriveBoard ENA to Arduino INT 11

MotorDriveBoard ENB to Arduino INT 10

MotorDriveBoard GND to Vin side Bus GND

MotorDriveBoard INT 1 to Arduino INT 7

MotorDriveBoard INT 2 to Arduino INT 8

MotorDriveBoard INT 3 to Arduino INT 9

MotorDriveBoard INT 4 to Arduino INT 2

( If you want to play with the LED stripe, you may left Arduino INT 6 to connect with LED stripe if it's input is PIN 6 )

MotorDriveBoard 5V to 5V side Bus POS

6 Connect Battery

Connect 6 AA Battery on the battery holder

Connect POSITIVE ( red ) to Vin side Bus POS

Connect NEGATIVE ( black ) to Vin side Bus GND

7 Assemble Robot Kit

There are instructions list when you unbox the robot kit. Just follow the instructions to assemble it.

8 Place All the Components on the Robot Kit

You can place your components on the robot kit so that it looks neat and nice.

Below is my kind of assembly :

Top View

Left Side View

Back View

10 Replace code

From circuito.io, you should download the Firmware code and replace its loop and define with the code below.

After that, you have to download the library for DC motor. You can refer here .

11 Upload Code

Connect with USB cable to upload your code to arduino and run the robot !

12 Complete

Congratulations ! You have completed you project. Try to let the robot kit move within black lines.

void loop() {
  bool irLineFollow1Var = digitalRead(IRLINEFOLLOW1_PIN_OUT);
  bool irLineFollow2Var = digitalRead(IRLINEFOLLOW2_PIN_OUT);
  bool irLineFollow3Var = digitalRead(IRLINEFOLLOW3_PIN_OUT);

  //Serial.print(irLineFollow1Var);Serial.print("\t");Serial.print(irLineFollow2Var); Serial.print("\t");Serial.println(irLineFollow3Var);
  //delay(300);

  if (irLineFollow1Var && !irLineFollow2Var && irLineFollow3Var)
  {
    Serial.println("Straight");
    dcMotorDriver.setMotorA(100, 1);
    dcMotorDriver.setMotorB(100, 1);
  }
  else if (irLineFollow1Var && !irLineFollow2Var && !irLineFollow3Var)
  {
    Serial.println("Left");
    dcMotorDriver.setMotorA(100, 1);
    dcMotorDriver.setMotorB(70, 1);
  }
  else if (!irLineFollow1Var && !irLineFollow2Var && irLineFollow3Var)
  {
    Serial.println("Right");
    dcMotorDriver.setMotorA(70, 1);
    dcMotorDriver.setMotorB(100, 1);
  }
  else if (irLineFollow1Var && irLineFollow2Var && !irLineFollow3Var)
  {
    Serial.println("Strong Left");
    dcMotorDriver.setMotorA(70, 0);
    dcMotorDriver.setMotorB(100, 1);
  }
  else if (!irLineFollow1Var && irLineFollow2Var && irLineFollow3Var)
  {
    Serial.println("Strong Right");
    dcMotorDriver.setMotorA(100, 1);
    dcMotorDriver.setMotorB(70, 0);
  }
  else if (irLineFollow1Var && irLineFollow2Var && irLineFollow3Var)
  {
    Serial.println("Straight");
    dcMotorDriver.setMotorA(100, 1);
    dcMotorDriver.setMotorB(100, 1);
  }
  else
  {
    Serial.println("Stop");
    dcMotorDriver.setMotorA(70, 1);
    dcMotorDriver.setMotorB(70, 1);
  }

Credits

SoonXinJia

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I am student from Multimedia University. I am now in Arduino learning process.

Thanks to Hackster, Circuito.io, Google, Google, Google, Google, Google, and Youtube.

Line Follower Robot Kit

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

LINE FOLLOWER ROBOT KIT

What Is It About?

What Do You Need?

How You Do?

Code

Loop Code

Define code

Credits

SoonXinJia

Comments

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Line Follower Robot Kit

Line Follower Robot Kit

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

LINE FOLLOWER ROBOT KIT

What Is It About?

What Do You Need?

How You Do?

Code

Loop Code

Define code

Credits

SoonXinJia

Comments

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