Arduino Bluetooth controlled car

This is my first Arduino-based, Bluetooth-controlled RC car. It is controlled by a smart phone application.

Oct 26, 2020

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lights

cars

robots

Components and supplies

Battery Holder, 18650 x 1

18650 battery

4wd car chassis

Battery Holder, 18650 x 2

Dual H-Bridge motor drivers L298

DC Motor, 12 V

Arduino UNO

Jumper wires (generic)

Enclosure for Arduino Uno

Tools and machines

Soldering iron (generic)

Solder Wire, Lead Free

Hot glue gun (generic)

Apps and platforms

Bluetooth car app

Arduino IDE

Project description

Code

sketch_oct24b.ino

arduino

1char t;
2 
3void setup() {
4pinMode(13,OUTPUT);   //left motors  forward
5pinMode(12,OUTPUT);   //left motors reverse
6pinMode(11,OUTPUT);   //right  motors forward
7pinMode(10,OUTPUT);   //right motors reverse
8pinMode(9,OUTPUT);   //Led
9Serial.begin(9600);
10 
11}
12 
13void loop() {
14if(Serial.available()){
15  t = Serial.read();
16  Serial.println(t);
17}
18 
19if(t == 'F'){            //move  forward(all motors rotate in forward direction)
20  digitalWrite(13,HIGH);
21  digitalWrite(11,HIGH);
22}
23 
24else if(t == 'B'){      //move reverse (all  motors rotate in reverse direction)
25  digitalWrite(12,HIGH);
26  digitalWrite(10,HIGH);
27}
28  
29else if(t == 'L'){      //turn right (left side motors rotate in forward direction,  right side motors doesn't rotate)
30  digitalWrite(11,HIGH);
31}
32 
33else  if(t == 'R'){      //turn left (right side motors rotate in forward direction, left  side motors doesn't rotate)
34  digitalWrite(13,HIGH);
35}
36
37else if(t ==  'W'){    //turn led on or off)
38  digitalWrite(9,HIGH);
39}
40else if(t == 'w'){
41  digitalWrite(9,LOW);
42}
43 else if(t == 'w'){
44  digitalWrite(5,HIGH);//turn  led on or off)
45  }
46  else if(t == 'w'){
47  digitalWrite(6,LOW);
48}
49else  if(t == 'S'){      //STOP (all motors stop)
50  digitalWrite(13,LOW);
51  digitalWrite(12,LOW);
52  digitalWrite(11,LOW);
53  digitalWrite(10,LOW);
54}
55delay(000);
56}
57

char t;
 
void setup() {
pinMode(13,OUTPUT);   //left motors  forward
pinMode(12,OUTPUT);   //left motors reverse
pinMode(11,OUTPUT);   //right  motors forward
pinMode(10,OUTPUT);   //right motors reverse
pinMode(9,OUTPUT);   //Led
Serial.begin(9600);
 
}
 
void loop() {
if(Serial.available()){
  t = Serial.read();
  Serial.println(t);
}
 
if(t == 'F'){            //move  forward(all motors rotate in forward direction)
  digitalWrite(13,HIGH);
  digitalWrite(11,HIGH);
}
 
else if(t == 'B'){      //move reverse (all  motors rotate in reverse direction)
  digitalWrite(12,HIGH);
  digitalWrite(10,HIGH);
}
  
else if(t == 'L'){      //turn right (left side motors rotate in forward direction,  right side motors doesn't rotate)
  digitalWrite(11,HIGH);
}
 
else  if(t == 'R'){      //turn left (right side motors rotate in forward direction, left  side motors doesn't rotate)
  digitalWrite(13,HIGH);
}

else if(t ==  'W'){    //turn led on or off)
  digitalWrite(9,HIGH);
}
else if(t == 'w'){
  digitalWrite(9,LOW);
}
 else if(t == 'w'){
  digitalWrite(5,HIGH);//turn  led on or off)
  }
  else if(t == 'w'){
  digitalWrite(6,LOW);
}
else  if(t == 'S'){      //STOP (all motors stop)
  digitalWrite(13,LOW);
  digitalWrite(12,LOW);
  digitalWrite(11,LOW);
  digitalWrite(10,LOW);
}
delay(000);
}

sketch_oct24b.ino

arduino

1char t;
2 
3void setup() {
4pinMode(13,OUTPUT);   //left motors   forward
5pinMode(12,OUTPUT);   //left motors reverse
6pinMode(11,OUTPUT);   //right   motors forward
7pinMode(10,OUTPUT);   //right motors reverse
8pinMode(9,OUTPUT);    //Led
9Serial.begin(9600);
10 
11}
12 
13void loop() {
14if(Serial.available()){
15   t = Serial.read();
16  Serial.println(t);
17}
18 
19if(t == 'F'){            //move   forward(all motors rotate in forward direction)
20  digitalWrite(13,HIGH);
21   digitalWrite(11,HIGH);
22}
23 
24else if(t == 'B'){      //move reverse (all   motors rotate in reverse direction)
25  digitalWrite(12,HIGH);
26  digitalWrite(10,HIGH);
27}
28   
29else if(t == 'L'){      //turn right (left side motors rotate in forward direction,   right side motors doesn't rotate)
30  digitalWrite(11,HIGH);
31}
32 
33else   if(t == 'R'){      //turn left (right side motors rotate in forward direction, left   side motors doesn't rotate)
34  digitalWrite(13,HIGH);
35}
36
37else if(t ==   'W'){    //turn led on or off)
38  digitalWrite(9,HIGH);
39}
40else if(t == 'w'){
41   digitalWrite(9,LOW);
42}
43 else if(t == 'w'){
44  digitalWrite(5,HIGH);//turn   led on or off)
45  }
46  else if(t == 'w'){
47  digitalWrite(6,LOW);
48}
49else   if(t == 'S'){      //STOP (all motors stop)
50  digitalWrite(13,LOW);
51  digitalWrite(12,LOW);
52   digitalWrite(11,LOW);
53  digitalWrite(10,LOW);
54}
55delay(000);
56}
57

char t;
 
void setup() {
pinMode(13,OUTPUT);   //left motors   forward
pinMode(12,OUTPUT);   //left motors reverse
pinMode(11,OUTPUT);   //right   motors forward
pinMode(10,OUTPUT);   //right motors reverse
pinMode(9,OUTPUT);    //Led
Serial.begin(9600);
 
}
 
void loop() {
if(Serial.available()){
   t = Serial.read();
  Serial.println(t);
}
 
if(t == 'F'){            //move   forward(all motors rotate in forward direction)
  digitalWrite(13,HIGH);
   digitalWrite(11,HIGH);
}
 
else if(t == 'B'){      //move reverse (all   motors rotate in reverse direction)
  digitalWrite(12,HIGH);
  digitalWrite(10,HIGH);
}
   
else if(t == 'L'){      //turn right (left side motors rotate in forward direction,   right side motors doesn't rotate)
  digitalWrite(11,HIGH);
}
 
else   if(t == 'R'){      //turn left (right side motors rotate in forward direction, left   side motors doesn't rotate)
  digitalWrite(13,HIGH);
}

else if(t ==   'W'){    //turn led on or off)
  digitalWrite(9,HIGH);
}
else if(t == 'w'){
   digitalWrite(9,LOW);
}
 else if(t == 'w'){
  digitalWrite(5,HIGH);//turn   led on or off)
  }
  else if(t == 'w'){
  digitalWrite(6,LOW);
}
else   if(t == 'S'){      //STOP (all motors stop)
  digitalWrite(13,LOW);
  digitalWrite(12,LOW);
   digitalWrite(11,LOW);
  digitalWrite(10,LOW);
}
delay(000);
}

Downloadable files

Diagram

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ravindup666

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