Published January 3, 2019 © GPL3+

Simple HC05 robot

Create a minimal robot setup with L298N motor driver and HC-05 Bluetooth module.

IntermediateFull instructions provided30 minutes2,535

Things used in this project

Hardware components

SparkFun Arduino Pro Mini 328 - 5V/16MHz

SparkFun Full-Bridge Motor Driver Breakout - L298N

HC-05 Bluetooth Module

11.1V lithium ion battery pack

UTSOURCE Electronic Parts

everything above can be found here for a low price

Software apps and online services

bluetooth terminal

Story

I wanted to create a simple minimal robot-ish car-like setup for a future project so I created this.

Thanks UTSOURCE.net to offer electronic components for this project!

you can check UTSOURCE.net, they deal in all kinds of electronic components, for example, Arduino board, stepper driver, and many more.

Watch the video and please subscribe to my YouTube channel!

Code

code

int motorLpin1 = 2;
int motorLpin2 = 3; 
int motorRpin1 = 4;
int motorRpin2 = 5;
int rightMotorENA = 6;
int leftMotorENB = 9;



int motorSpeed = 255;
int turn=50;
void setup()
{
  Serial.begin(9600);
  Serial.flush();
  pinMode(motorLpin1,OUTPUT);
  pinMode(motorLpin2,OUTPUT);
  pinMode(motorRpin1,OUTPUT);
  pinMode(motorRpin2,OUTPUT);
  pinMode(rightMotorENA,OUTPUT);
  pinMode(leftMotorENB,OUTPUT);

}

void loop(){
  String input="";
  while(Serial.available()){
    input+=(char)Serial.read();
    delay(5);
  }
    
  if(input=="n"){
    MotorStop();
  }
  else if(input=="F"){
    MotorForward();
  }
  else if(input=="R"){
    MotorBackward();
  }
  else if(input=="TL"){
    MotorLeft();
  }
  else if(input=="TR"){
    MotorRight();
  }
  
  else if(input=="RR"){
    rightRight();
  }
  
  else if(input=="M"){
    StraightStraight();
  }

 
 
}

void MotorForward(void)
{
  digitalWrite(motorLpin1,HIGH);
  digitalWrite(motorLpin2,LOW);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
}

void MotorBackward(void)
{
  
  digitalWrite(motorLpin1,LOW);
  digitalWrite(motorLpin2,HIGH);
  digitalWrite(motorRpin1,LOW);
  digitalWrite(motorRpin2,HIGH);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);  
}
void MotorLeft(void)
{
  digitalWrite(motorLpin1,HIGH);
  digitalWrite(motorLpin2,LOW);
  digitalWrite(motorRpin1,LOW);
  digitalWrite(motorRpin2,HIGH);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
}
void MotorRight(void)
{
 
  digitalWrite(motorLpin1,LOW);
  digitalWrite(motorLpin2,HIGH);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255); 
}
void MotorStop(void)
{
  
  digitalWrite(motorLpin1,LOW);
  digitalWrite(motorLpin2,LOW);
  digitalWrite(motorRpin1,LOW);
  digitalWrite(motorRpin2,LOW);
  digitalWrite(leftMotorENB,LOW);
  digitalWrite(rightMotorENA,LOW);
}




void rightRight(void){
  
  digitalWrite(motorLpin1,LOW);   //turn right 
  digitalWrite(motorLpin2,HIGH);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
  delay(600);
  analogWrite(leftMotorENB,LOW);
  analogWrite(rightMotorENA,LOW);
  delay(600);
}

void StraightStraight (void){
  
  digitalWrite(motorLpin1,HIGH); //staright
  digitalWrite(motorLpin2,LOW);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
  delay(4000);
  analogWrite(leftMotorENB,LOW);
  analogWrite(rightMotorENA,LOW);
  delay(500);

  digitalWrite(motorLpin1,LOW);   //turn right 
  digitalWrite(motorLpin2,HIGH);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
  delay(100);
  analogWrite(leftMotorENB,LOW);
  analogWrite(rightMotorENA,LOW);
  delay(500);

  digitalWrite(motorLpin1,HIGH); //straight
  digitalWrite(motorLpin2,LOW);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
  delay(4000);
  analogWrite(leftMotorENB,LOW);
  analogWrite(rightMotorENA,LOW);
  delay(500); 

  digitalWrite(motorLpin1,LOW);   //turn right 
  digitalWrite(motorLpin2,HIGH);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
  delay(100);
  analogWrite(leftMotorENB,LOW);
  analogWrite(rightMotorENA,LOW);
  delay(500);

  digitalWrite(motorLpin1,HIGH); //straight
  digitalWrite(motorLpin2,LOW);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
  delay(4000);
  analogWrite(leftMotorENB,LOW);
  analogWrite(rightMotorENA,LOW);
  delay(500);

   digitalWrite(motorLpin1,LOW);   //turn right 
  digitalWrite(motorLpin2,HIGH);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
  delay(100);
  analogWrite(leftMotorENB,LOW);
  analogWrite(rightMotorENA,LOW);
  delay(500);

  digitalWrite(motorLpin1,HIGH); //straight
  digitalWrite(motorLpin2,LOW);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
  delay(4000);
  analogWrite(leftMotorENB,LOW);
  analogWrite(rightMotorENA,LOW);
  delay(500); 

  digitalWrite(motorLpin1,LOW);   //turn right 
  digitalWrite(motorLpin2,HIGH);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
  delay(100);
  analogWrite(leftMotorENB,LOW);
  analogWrite(rightMotorENA,LOW);
  delay(500);

  digitalWrite(motorLpin1,HIGH); //straight
  digitalWrite(motorLpin2,LOW);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
  delay(4000);
  analogWrite(leftMotorENB,LOW);
  analogWrite(rightMotorENA,LOW);
  delay(500);

    digitalWrite(motorLpin1,LOW);   //turn right 
  digitalWrite(motorLpin2,HIGH);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
  delay(100);
  analogWrite(leftMotorENB,LOW);
  analogWrite(rightMotorENA,LOW);
  delay(500);

  digitalWrite(motorLpin1,HIGH); //straight
  digitalWrite(motorLpin2,LOW);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
  delay(4000);
  analogWrite(leftMotorENB,LOW);
  analogWrite(rightMotorENA,LOW);
  delay(500); 

  digitalWrite(motorLpin1,LOW);   //turn right 
  digitalWrite(motorLpin2,HIGH);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
  delay(100);
  analogWrite(leftMotorENB,LOW);
  analogWrite(rightMotorENA,LOW);
  delay(500);

  digitalWrite(motorLpin1,HIGH); //straight
  digitalWrite(motorLpin2,LOW);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
  delay(4000);
  analogWrite(leftMotorENB,LOW);
  analogWrite(rightMotorENA,LOW);
  delay(500);

   digitalWrite(motorLpin1,LOW);   //turn right 
  digitalWrite(motorLpin2,HIGH);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
  delay(100);
  analogWrite(leftMotorENB,LOW);
  analogWrite(rightMotorENA,LOW);
  delay(500);

  digitalWrite(motorLpin1,HIGH); //straight
  digitalWrite(motorLpin2,LOW);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
  delay(4000);
  analogWrite(leftMotorENB,LOW);
  analogWrite(rightMotorENA,LOW);
  delay(500); 

  digitalWrite(motorLpin1,LOW);   //turn right 
  digitalWrite(motorLpin2,HIGH);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
  delay(100);
  analogWrite(leftMotorENB,LOW);
  analogWrite(rightMotorENA,LOW);
  delay(500);

  digitalWrite(motorLpin1,HIGH); //straight
  digitalWrite(motorLpin2,LOW);
  digitalWrite(motorRpin1,HIGH);
  digitalWrite(motorRpin2,LOW);
  analogWrite(leftMotorENB,255);
  analogWrite(rightMotorENA,255);
  delay(4000);
  analogWrite(leftMotorENB,LOW);
  analogWrite(rightMotorENA,LOW);
  delay(500);  
}

Credits

Arnov Sharma

267 projects • 273 followers

Just your average MAKER

Simple HC05 robot

Things used in this project

Hardware components

Software apps and online services

Story

Schematics

controlador-de-motores-doble-puente-h-l298_jEnV1TuHgp.jpg

Code

code

Credits

Arnov Sharma

Comments

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Simple HC05 robot

Simple HC05 robot

Things used in this project

Hardware components

Software apps and online services

Story

Schematics

controlador-de-motores-doble-puente-h-l298_jEnV1TuHgp.jpg

Code

code

Credits

Arnov Sharma

Comments

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