Arduino bluetoth car

1/*
2  Bluetooth car
3
4  written by sanuka 
5
6  rx------->D1
7  tx------->D0
8  vcc------>+5v
9  GND------>GND
10*/
11#include <AFMotor.h>  //include the library
12
13AF_DCMotor motor1(1); // naming the motors
14AF_DCMotor  motor2(2);
15AF_DCMotor motor3(3);
16AF_DCMotor motor4(4);
17
18char val;
19void  setup() {
20
21  motor1.setSpeed(255);  //give a speed to the motors
22  motor2.setSpeed(255);
23  motor3.setSpeed(255);
24  motor4.setSpeed(255);
25  pinMode(13, OUTPUT);
26
27  Serial.begin(9600);
28
29}
30
31void loop() {
32  if (Serial.available())  {
33    val = Serial.read();
34    Serial.println(val);
35  }
36  if (val ==  'F') {
37    motor1.run(FORWARD);
38    motor2.run(FORWARD);
39    motor3.run(FORWARD);//go  forward
40    motor4.run(FORWARD);
41  }
42  else if (val == 'B') {
43    motor1.run(BACKWARD);
44    motor2.run(BACKWARD);
45    motor3.run(BACKWARD);//go backward
46    motor4.run(BACKWARD);
47  }
48  else if (val == 'R') {
49    motor1.run(FORWARD);
50    motor2.run(FORWARD);//go  right
51    motor3.run(BACKWARD);
52    motor4.run(BACKWARD);
53  }
54  else  if (val == 'L') {
55    motor1.run(BACKWARD);
56    motor2.run(BACKWARD);
57    motor3.run(FORWARD);//go left
58    motor4.run(FORWARD);
59  }
60  else if  (val == 'S') {
61    motor1.run(RELEASE);
62    motor2.run(RELEASE);
63    motor3.run(RELEASE);//stop
64    motor4.run(RELEASE);
65  }
66  else if (val == '5') {
67    motor1.setSpeed(150);
68    motor2.setSpeed(150);//change speed
69    motor3.setSpeed(150);
70    motor4.setSpeed(150);
71  }
72  else if (val == 'q') {
73    motor1.setSpeed(255);
74    motor2.setSpeed(255);
75    motor3.setSpeed(255);
76    motor4.setSpeed(255);
77  }
78  else if (val  == 'V') {
79    digitalWrite(13, HIGH);
80  }
81  else if (val == 'v') {
82    digitalWrite(13, LOW);
83  }
84  delay(100);
85}

1
2#include <AFMotor.h>  //include the library
3
4AF_DCMotor motor1(1);  // naming the motors
5AF_DCMotor motor2(2);
6AF_DCMotor motor3(3);
7AF_DCMotor  motor4(4);
8
9
10void setup() {
11
12  motor1.setSpeed(255);  //give a speed  to the motors
13  motor2.setSpeed(255);
14  motor3.setSpeed(255);
15  motor4.setSpeed(255);
16}
17
18void  loop() {
19  motor1.run(FORWARD);
20  motor2.run(FORWARD);
21  motor3.run(FORWARD);
22  motor4.run(FORWARD);
23  delay(1000);
24  motor1.run(BACKWARD);
25  motor2.run(BACKWARD);
26  motor3.run(BACKWARD);
27  motor4.run(BACKWARD);
28  delay(1000);
29  motor1.run(RELEASE);
30  motor1.run(RELEASE);
31  motor1.run(RELEASE);
32  motor1.run(RELEASE);
33}

1/*
2  Bluetooth car
3
4  written by sanuka 
5
6  rx------->D1
7
8  tx------->D0
9  vcc------>+5v
10  GND------>GND
11*/
12#include <AFMotor.h>
13  //include the library
14
15AF_DCMotor motor1(1); // naming the motors
16AF_DCMotor
17  motor2(2);
18AF_DCMotor motor3(3);
19AF_DCMotor motor4(4);
20
21char val;
22void
23  setup() {
24
25  motor1.setSpeed(255);  //give a speed to the motors
26  motor2.setSpeed(255);
27
28  motor3.setSpeed(255);
29  motor4.setSpeed(255);
30  pinMode(13, OUTPUT);
31
32
33  Serial.begin(9600);
34
35}
36
37void loop() {
38  if (Serial.available())
39  {
40    val = Serial.read();
41    Serial.println(val);
42  }
43  if (val ==
44  'F') {
45    motor1.run(FORWARD);
46    motor2.run(FORWARD);
47    motor3.run(FORWARD);//go
48  forward
49    motor4.run(FORWARD);
50  }
51  else if (val == 'B') {
52    motor1.run(BACKWARD);
53
54    motor2.run(BACKWARD);
55    motor3.run(BACKWARD);//go backward
56    motor4.run(BACKWARD);
57
58  }
59  else if (val == 'R') {
60    motor1.run(FORWARD);
61    motor2.run(FORWARD);//go
62  right
63    motor3.run(BACKWARD);
64    motor4.run(BACKWARD);
65  }
66  else
67  if (val == 'L') {
68    motor1.run(BACKWARD);
69    motor2.run(BACKWARD);
70
71    motor3.run(FORWARD);//go left
72    motor4.run(FORWARD);
73  }
74  else if
75  (val == 'S') {
76    motor1.run(RELEASE);
77    motor2.run(RELEASE);
78    motor3.run(RELEASE);//stop
79
80    motor4.run(RELEASE);
81  }
82  else if (val == '5') {
83    motor1.setSpeed(150);
84
85    motor2.setSpeed(150);//change speed
86    motor3.setSpeed(150);
87    motor4.setSpeed(150);
88
89  }
90  else if (val == 'q') {
91    motor1.setSpeed(255);
92    motor2.setSpeed(255);
93
94    motor3.setSpeed(255);
95    motor4.setSpeed(255);
96  }
97  else if (val
98  == 'V') {
99    digitalWrite(13, HIGH);
100  }
101  else if (val == 'v') {
102
103    digitalWrite(13, LOW);
104  }
105  delay(100);
106}