Android Mobile Controlled Bluetooth RC Car

Android controlled car

Feb 16, 2021

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5260 views

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4 respects

Components and supplies

18650 battery x 2

Arduino UNO

High Brightness LED, White

Android device

5 mm LED: Red

Jumper wires (generic)

Acrylic sheet

Maker Essentials - Micro-motors & Grippy Wheels

HC-05 Bluetooth Module

L293D motor driver Adafruit

Battery Holder, 18650 x 2

DC Motor, 12 V

Apps and platforms

Arduino IDE

Project description

Code

arduino

1// https://www.youtube.com/channel/UCaXI2PcsTlH5g0et67kdD6g  //
2//  Smartphone controlled Robot //
3// By MOHD SOHAIL //
4
5#include <AFMotor.h>
6
7AF_DCMotor  motor1(1, MOTOR12_1KHZ); 
8AF_DCMotor motor2(2, MOTOR12_1KHZ); 
9AF_DCMotor  motor3(3, MOTOR34_1KHZ);
10AF_DCMotor motor4(4, MOTOR34_1KHZ);
11
12int whiteled  = A5;
13int redled = A4;
14
15char command; 
16
17void setup() 
18{       
19  Serial.begin(9600); 
20  pinMode(whiteled, OUTPUT);
21  pinMode(redled, OUTPUT);  
22}
23
24void loop(){
25  if(Serial.available() > 0){ 
26    command = Serial.read();  
27    Stop(); 
28
29    switch(command){
30    case 'F':  
31      forward();
32      break;
33    case 'B':  
34       back();
35      break;
36    case 'L':  
37      left();
38      break;
39    case 'R':
40      right();
41      break;
42      case 'S':
43      Stop();
44      break;
45    case 'a':
46      on();
47      break;
48    case 'b':
49      off();
50      break;
51    }
52  } 
53}
54
55void  forward()
56{
57  motor1.setSpeed(150); //Define maximum velocity
58  motor1.run(FORWARD);  //rotate the motor clockwise
59  motor2.setSpeed(150); //Define maximum velocity
60  motor2.run(FORWARD); //rotate the motor clockwise
61  motor3.setSpeed(150);//Define  maximum velocity
62  motor3.run(FORWARD); //rotate the motor clockwise
63  motor4.setSpeed(150);//Define  maximum velocity
64  motor4.run(FORWARD);
65  digitalWrite(redled , LOW);//rotate  the motor clockwise
66}
67
68void back()
69{
70  motor1.setSpeed(150); //Define  maximum velocity
71  motor1.run(BACKWARD); //rotate the motor anti-clockwise
72  motor2.setSpeed(150); //Define maximum velocity
73  motor2.run(BACKWARD); //rotate  the motor anti-clockwise
74  motor3.setSpeed(150); //Define maximum velocity
75  motor3.run(BACKWARD); //rotate the motor anti-clockwise
76  motor4.setSpeed(150);  //Define maximum velocity
77  motor4.run(BACKWARD); //rotate the motor anti-clockwise
78digitalWrite(redled  , HIGH);
79}
80
81void left()
82{
83  motor1.setSpeed(150); //Define maximum  velocity
84  motor1.run(BACKWARD); //rotate the motor anti-clockwise
85  motor2.setSpeed(150);  //Define maximum velocity
86  motor2.run(BACKWARD); //rotate the motor anti-clockwise
87  motor3.setSpeed(150); //Define maximum velocity
88  motor3.run(FORWARD);  //rotate  the motor clockwise
89  motor4.setSpeed(150); //Define maximum velocity
90  motor4.run(FORWARD);  //rotate the motor clockwise
91  digitalWrite(redled , LOW);
92}
93
94void  right()
95{
96  motor1.setSpeed(150); //Define maximum velocity
97  motor1.run(FORWARD);  //rotate the motor clockwise
98  motor2.setSpeed(150); //Define maximum velocity
99  motor2.run(FORWARD); //rotate the motor clockwise
100  motor3.setSpeed(150); //Define  maximum velocity
101  motor3.run(BACKWARD); //rotate the motor anti-clockwise
102  motor4.setSpeed(150); //Define maximum velocity
103  motor4.run(BACKWARD); //rotate  the motor anti-clockwise
104  digitalWrite(redled , LOW);
105} 
106
107void Stop()
108{
109  motor1.setSpeed(0); //Define minimum velocity
110  motor1.run(RELEASE); //stop  the motor when release the button
111  motor2.setSpeed(0); //Define minimum velocity
112  motor2.run(RELEASE); //rotate the motor clockwise
113  motor3.setSpeed(0); //Define  minimum velocity
114  motor3.run(RELEASE); //stop the motor when release the button
115  motor4.setSpeed(0); //Define minimum velocity
116  motor4.run(RELEASE); //stop  the motor when release the button
117  digitalWrite(redled , LOW);
118}
119
120void  on()
121{
122  digitalWrite(whiteled , HIGH);
123}
124
125void off()
126{
127  digitalWrite(whiteled  , LOW);
128}
129

// https://www.youtube.com/channel/UCaXI2PcsTlH5g0et67kdD6g  //
//  Smartphone controlled Robot //
// By MOHD SOHAIL //

#include <AFMotor.h>

AF_DCMotor  motor1(1, MOTOR12_1KHZ); 
AF_DCMotor motor2(2, MOTOR12_1KHZ); 
AF_DCMotor  motor3(3, MOTOR34_1KHZ);
AF_DCMotor motor4(4, MOTOR34_1KHZ);

int whiteled  = A5;
int redled = A4;

char command; 

void setup() 
{       
  Serial.begin(9600); 
  pinMode(whiteled, OUTPUT);
  pinMode(redled, OUTPUT);  
}

void loop(){
  if(Serial.available() > 0){ 
    command = Serial.read();  
    Stop(); 

    switch(command){
    case 'F':  
      forward();
      break;
    case 'B':  
       back();
      break;
    case 'L':  
      left();
      break;
    case 'R':
      right();
      break;
      case 'S':
      Stop();
      break;
    case 'a':
      on();
      break;
    case 'b':
      off();
      break;
    }
  } 
}

void  forward()
{
  motor1.setSpeed(150); //Define maximum velocity
  motor1.run(FORWARD);  //rotate the motor clockwise
  motor2.setSpeed(150); //Define maximum velocity
  motor2.run(FORWARD); //rotate the motor clockwise
  motor3.setSpeed(150);//Define  maximum velocity
  motor3.run(FORWARD); //rotate the motor clockwise
  motor4.setSpeed(150);//Define  maximum velocity
  motor4.run(FORWARD);
  digitalWrite(redled , LOW);//rotate  the motor clockwise
}

void back()
{
  motor1.setSpeed(150); //Define  maximum velocity
  motor1.run(BACKWARD); //rotate the motor anti-clockwise
  motor2.setSpeed(150); //Define maximum velocity
  motor2.run(BACKWARD); //rotate  the motor anti-clockwise
  motor3.setSpeed(150); //Define maximum velocity
  motor3.run(BACKWARD); //rotate the motor anti-clockwise
  motor4.setSpeed(150);  //Define maximum velocity
  motor4.run(BACKWARD); //rotate the motor anti-clockwise
digitalWrite(redled  , HIGH);
}

void left()
{
  motor1.setSpeed(150); //Define maximum  velocity
  motor1.run(BACKWARD); //rotate the motor anti-clockwise
  motor2.setSpeed(150);  //Define maximum velocity
  motor2.run(BACKWARD); //rotate the motor anti-clockwise
  motor3.setSpeed(150); //Define maximum velocity
  motor3.run(FORWARD);  //rotate  the motor clockwise
  motor4.setSpeed(150); //Define maximum velocity
  motor4.run(FORWARD);  //rotate the motor clockwise
  digitalWrite(redled , LOW);
}

void  right()
{
  motor1.setSpeed(150); //Define maximum velocity
  motor1.run(FORWARD);  //rotate the motor clockwise
  motor2.setSpeed(150); //Define maximum velocity
  motor2.run(FORWARD); //rotate the motor clockwise
  motor3.setSpeed(150); //Define  maximum velocity
  motor3.run(BACKWARD); //rotate the motor anti-clockwise
  motor4.setSpeed(150); //Define maximum velocity
  motor4.run(BACKWARD); //rotate  the motor anti-clockwise
  digitalWrite(redled , LOW);
} 

void Stop()
{
  motor1.setSpeed(0); //Define minimum velocity
  motor1.run(RELEASE); //stop  the motor when release the button
  motor2.setSpeed(0); //Define minimum velocity
  motor2.run(RELEASE); //rotate the motor clockwise
  motor3.setSpeed(0); //Define  minimum velocity
  motor3.run(RELEASE); //stop the motor when release the button
  motor4.setSpeed(0); //Define minimum velocity
  motor4.run(RELEASE); //stop  the motor when release the button
  digitalWrite(redled , LOW);
}

void  on()
{
  digitalWrite(whiteled , HIGH);
}

void off()
{
  digitalWrite(whiteled  , LOW);
}

Code

arduino

1// https://www.youtube.com/channel/UCaXI2PcsTlH5g0et67kdD6g  //
2//   Smartphone controlled Robot //
3// By MOHD SOHAIL //
4
5#include <AFMotor.h>
6
7AF_DCMotor   motor1(1, MOTOR12_1KHZ); 
8AF_DCMotor motor2(2, MOTOR12_1KHZ); 
9AF_DCMotor   motor3(3, MOTOR34_1KHZ);
10AF_DCMotor motor4(4, MOTOR34_1KHZ);
11
12int whiteled   = A5;
13int redled = A4;
14
15char command; 
16
17void setup() 
18{       
19   Serial.begin(9600); 
20  pinMode(whiteled, OUTPUT);
21  pinMode(redled, OUTPUT);   
22}
23
24void loop(){
25  if(Serial.available() > 0){ 
26    command = Serial.read();   
27    Stop(); 
28
29    switch(command){
30    case 'F':  
31      forward();
32       break;
33    case 'B':  
34       back();
35      break;
36    case 'L':   
37      left();
38      break;
39    case 'R':
40      right();
41      break;
42       case 'S':
43      Stop();
44      break;
45    case 'a':
46      on();
47       break;
48    case 'b':
49      off();
50      break;
51    }
52  } 
53}
54
55void   forward()
56{
57  motor1.setSpeed(150); //Define maximum velocity
58  motor1.run(FORWARD);   //rotate the motor clockwise
59  motor2.setSpeed(150); //Define maximum velocity
60   motor2.run(FORWARD); //rotate the motor clockwise
61  motor3.setSpeed(150);//Define   maximum velocity
62  motor3.run(FORWARD); //rotate the motor clockwise
63  motor4.setSpeed(150);//Define   maximum velocity
64  motor4.run(FORWARD);
65  digitalWrite(redled , LOW);//rotate   the motor clockwise
66}
67
68void back()
69{
70  motor1.setSpeed(150); //Define   maximum velocity
71  motor1.run(BACKWARD); //rotate the motor anti-clockwise
72   motor2.setSpeed(150); //Define maximum velocity
73  motor2.run(BACKWARD); //rotate   the motor anti-clockwise
74  motor3.setSpeed(150); //Define maximum velocity
75   motor3.run(BACKWARD); //rotate the motor anti-clockwise
76  motor4.setSpeed(150);   //Define maximum velocity
77  motor4.run(BACKWARD); //rotate the motor anti-clockwise
78digitalWrite(redled   , HIGH);
79}
80
81void left()
82{
83  motor1.setSpeed(150); //Define maximum   velocity
84  motor1.run(BACKWARD); //rotate the motor anti-clockwise
85  motor2.setSpeed(150);   //Define maximum velocity
86  motor2.run(BACKWARD); //rotate the motor anti-clockwise
87   motor3.setSpeed(150); //Define maximum velocity
88  motor3.run(FORWARD);  //rotate   the motor clockwise
89  motor4.setSpeed(150); //Define maximum velocity
90  motor4.run(FORWARD);   //rotate the motor clockwise
91  digitalWrite(redled , LOW);
92}
93
94void   right()
95{
96  motor1.setSpeed(150); //Define maximum velocity
97  motor1.run(FORWARD);   //rotate the motor clockwise
98  motor2.setSpeed(150); //Define maximum velocity
99   motor2.run(FORWARD); //rotate the motor clockwise
100  motor3.setSpeed(150); //Define   maximum velocity
101  motor3.run(BACKWARD); //rotate the motor anti-clockwise
102   motor4.setSpeed(150); //Define maximum velocity
103  motor4.run(BACKWARD); //rotate   the motor anti-clockwise
104  digitalWrite(redled , LOW);
105} 
106
107void Stop()
108{
109   motor1.setSpeed(0); //Define minimum velocity
110  motor1.run(RELEASE); //stop   the motor when release the button
111  motor2.setSpeed(0); //Define minimum velocity
112   motor2.run(RELEASE); //rotate the motor clockwise
113  motor3.setSpeed(0); //Define   minimum velocity
114  motor3.run(RELEASE); //stop the motor when release the button
115   motor4.setSpeed(0); //Define minimum velocity
116  motor4.run(RELEASE); //stop   the motor when release the button
117  digitalWrite(redled , LOW);
118}
119
120void   on()
121{
122  digitalWrite(whiteled , HIGH);
123}
124
125void off()
126{
127  digitalWrite(whiteled   , LOW);
128}
129

// https://www.youtube.com/channel/UCaXI2PcsTlH5g0et67kdD6g  //
//   Smartphone controlled Robot //
// By MOHD SOHAIL //

#include <AFMotor.h>

AF_DCMotor   motor1(1, MOTOR12_1KHZ); 
AF_DCMotor motor2(2, MOTOR12_1KHZ); 
AF_DCMotor   motor3(3, MOTOR34_1KHZ);
AF_DCMotor motor4(4, MOTOR34_1KHZ);

int whiteled   = A5;
int redled = A4;

char command; 

void setup() 
{       
   Serial.begin(9600); 
  pinMode(whiteled, OUTPUT);
  pinMode(redled, OUTPUT);   
}

void loop(){
  if(Serial.available() > 0){ 
    command = Serial.read();   
    Stop(); 

    switch(command){
    case 'F':  
      forward();
       break;
    case 'B':  
       back();
      break;
    case 'L':   
      left();
      break;
    case 'R':
      right();
      break;
       case 'S':
      Stop();
      break;
    case 'a':
      on();
       break;
    case 'b':
      off();
      break;
    }
  } 
}

void   forward()
{
  motor1.setSpeed(150); //Define maximum velocity
  motor1.run(FORWARD);   //rotate the motor clockwise
  motor2.setSpeed(150); //Define maximum velocity
   motor2.run(FORWARD); //rotate the motor clockwise
  motor3.setSpeed(150);//Define   maximum velocity
  motor3.run(FORWARD); //rotate the motor clockwise
  motor4.setSpeed(150);//Define   maximum velocity
  motor4.run(FORWARD);
  digitalWrite(redled , LOW);//rotate   the motor clockwise
}

void back()
{
  motor1.setSpeed(150); //Define   maximum velocity
  motor1.run(BACKWARD); //rotate the motor anti-clockwise
   motor2.setSpeed(150); //Define maximum velocity
  motor2.run(BACKWARD); //rotate   the motor anti-clockwise
  motor3.setSpeed(150); //Define maximum velocity
   motor3.run(BACKWARD); //rotate the motor anti-clockwise
  motor4.setSpeed(150);   //Define maximum velocity
  motor4.run(BACKWARD); //rotate the motor anti-clockwise
digitalWrite(redled   , HIGH);
}

void left()
{
  motor1.setSpeed(150); //Define maximum   velocity
  motor1.run(BACKWARD); //rotate the motor anti-clockwise
  motor2.setSpeed(150);   //Define maximum velocity
  motor2.run(BACKWARD); //rotate the motor anti-clockwise
   motor3.setSpeed(150); //Define maximum velocity
  motor3.run(FORWARD);  //rotate   the motor clockwise
  motor4.setSpeed(150); //Define maximum velocity
  motor4.run(FORWARD);   //rotate the motor clockwise
  digitalWrite(redled , LOW);
}

void   right()
{
  motor1.setSpeed(150); //Define maximum velocity
  motor1.run(FORWARD);   //rotate the motor clockwise
  motor2.setSpeed(150); //Define maximum velocity
   motor2.run(FORWARD); //rotate the motor clockwise
  motor3.setSpeed(150); //Define   maximum velocity
  motor3.run(BACKWARD); //rotate the motor anti-clockwise
   motor4.setSpeed(150); //Define maximum velocity
  motor4.run(BACKWARD); //rotate   the motor anti-clockwise
  digitalWrite(redled , LOW);
} 

void Stop()
{
   motor1.setSpeed(0); //Define minimum velocity
  motor1.run(RELEASE); //stop   the motor when release the button
  motor2.setSpeed(0); //Define minimum velocity
   motor2.run(RELEASE); //rotate the motor clockwise
  motor3.setSpeed(0); //Define   minimum velocity
  motor3.run(RELEASE); //stop the motor when release the button
   motor4.setSpeed(0); //Define minimum velocity
  motor4.run(RELEASE); //stop   the motor when release the button
  digitalWrite(redled , LOW);
}

void   on()
{
  digitalWrite(whiteled , HIGH);
}

void off()
{
  digitalWrite(whiteled   , LOW);
}

Downloadable files

Circuit Diagram

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