Bluetooth Controlled Car

1#include <AFMotor.h>
2
3AF_DCMotor motor1(1);  //motor1 is the left  motor
4AF_DCMotor motor2(2);  //motor2 is the right motor
5
6int val;
7void  setup()
8{
9  Serial.begin(9600); 
10 
11  motor1.setSpeed(255); //motor speed  is set
12  motor2.setSpeed(255);
13  Stop();
14}
15
16
17void loop() {
18  
19bt=Serial.read();
20
21if(val=='1')  //when the bluetooth module recieves  1 the car moves forward
22{
23 forward(); 
24}
25
26if(val=='2')  //when the  bluetooth module recieves 2 the car moves backward
27{
28 backward(); 
29}
30
31if(val=='3')  //when the bluetooth module recieves 3 the car moves left
32{
33 left(); 
34}
35
36if(val=='4')  //when the bluetooth module recieves 4 the car moves right
37{
38 right(); 
39}
40
41if(val=='5')  //when the bluetooth module recieves 5 the car stops
42{
43 Stop(); 
44}
45
46}
47void  forward()
48{
49     motor1.run(FORWARD);
50  motor2.run(FORWARD);
51}
52
53void  backward()
54{
55     motor1.run(BACKWARD);
56  motor2.run(BACKWARD);
57}
58void  left()
59{
60  motor1.run(BACKWARD);
61  motor2.run(FORWARD);
62}
63void right()
64{
65  motor1.run(FORWARD);
66  motor2.run(BACKWARD);
67}
68void Stop()
69{
70  motor1.run(RELEASE);
71  motor2.run(RELEASE);
72}
73