COPYBOT! Using Arduino UNO.

Hello guys.!
Today I will will set up a COPYBOT!.
The COPYBOT is a slave of the master bot. It will follow its master around and copy everything it does.
This can also be called a “Master- Slave Robot” project.

I’ve used here one master robot and one slave robot. However after completion of this project, you can attach as many slave robots with the master robot.

COMPONENTS REQUIRED ->

1x Arduino uno

1x Bluetooth Module (I used HC-05)

2x Chassis

2x Breadboard

1x RF transmitter Module

1x RF receiver module

4x Wheels

4x Motors – (100 rpm DC motor)

2x 9v batteries

2x L293D (Motor driver IC)

   A lot of connecting wires

For controlling your master robot wirelessly, you need a remote. You can turn your phone into an IR remote by building a simple app in MIT app inventor. For novice’s, here is the link where you can learn how to build the app.
https://www.youtube.com/watch?v=li9YaUactCw

CIRCUIT DIAGRAM :-
1. MASTER ROBOT

 2). SLAVE ROBOT :-

//Now you need to connect your arduino UNO to the computer and upload the following code.
//CODE

#include <SoftwareSerial.h>

SoftwareSerial BT(10, 11); //TX, RX respetively

String COMMAND;

void setup() {

 BT.begin(9600);

 Serial.begin(9600); // setting baud rate to 9600

  pinMode (2, OUTPUT);

  pinMode (3, OUTPUT);

  pinMode (4, OUTPUT);

  pinMode (5, OUTPUT);

  pinMode (6, OUTPUT);

  pinMode (7, OUTPUT);

  pinMode (8, OUTPUT);

  pinMode (9, OUTPUT);

}

void loop() {

  while (BT.available()){   //Check if there is an available byte to read

  delay(10); //Delay added to make thing stable

  char c = BT.read(); //Conduct a serial read

  COMMAND += c; //build the string- “forward”, “reverse”, “left” and “right”

  }

  if (COMMAND.length() > 0) {

    Serial.println(COMMAND);

    if(COMMAND == “forward”)

  {

    digitalWrite(8, HIGH);

    digitalWrite (9, HIGH);

    digitalWrite(6,LOW);

    digitalWrite(7,LOW);

    digitalWrite(2, HIGH);

    digitalWrite (3, HIGH);

    digitalWrite(4,LOW);

    digitalWrite(5,LOW);

    delay(100);

  }

  else if(COMMAND == “reverse”)

  {

    digitalWrite(8, LOW);

    digitalWrite (9, LOW);

    digitalWrite(6,HIGH);

    digitalWrite(7,HIGH);

    digitalWrite(2, LOW);

    digitalWrite (3, LOW);

    digitalWrite(4,HIGH);

    digitalWrite(5,HIGH);

    delay(100);

  }

  else if (COMMAND == “right”)

  {

    digitalWrite(8, LOW);

    digitalWrite (9, HIGH);

    digitalWrite(6,LOW);

    digitalWrite(7,LOW);

    digitalWrite(2, LOW);

    digitalWrite (3, HIGH);

    digitalWrite(4,LOW);

    digitalWrite(5,LOW);

    delay (100);

  }

 else if ( COMMAND == “left”)

 {

   digitalWrite(8, HIGH);

    digitalWrite (9, LOW);

    digitalWrite(6,LOW);

    digitalWrite(7,LOW);

    digitalWrite(2, HIGH);

    digitalWrite (3, LOW);

    digitalWrite(4,LOW);

    digitalWrite(5,LOW);

   delay (100);

 }

 else if (COMMAND == “stop”)

 {

digitalWrite(8, LOW);

    digitalWrite (9, LOW);

    digitalWrite(6,LOW);

    digitalWrite(7,LOW);

    digitalWrite(2, LOW);

    digitalWrite (3, LOW);

    digitalWrite(4,LOW);

    digitalWrite(5,LOW);

   delay (100);

 }

COMMAND=””;}} //Reset the variable

That’s it!. Now upload this code to your arduino and start the robot. You don’t need any additional code for the slave robot.

THANKYOU!