Bluetooth control car

1/*
2Code Name: Arduino Bluetooth Car with Front and Back Light Control  
3Code URI: https://circuitbest.com/category/arduino-projects/
4Before uploading  the code you have to install the "Adafruit Motor Shield" library
5Open Arduino  IDE >> Go to sketch >> Include Libray >> Manage Librays...  >> Search "Adafruit  Motor Shield" >> Install the Library
6AFMotor Library: https://learn.adafruit.com/adafruit-motor-shield/library-install
7Author:  Make DIY
8Author URI: https://circuitbest.com/author/admin/
9Description: This  program is used to control a robot using an app that communicates with Arduino through  an HC-05 Bluetooth Module.
10App URI: https://bit.ly/3mn6LuZ
11Version: 1.0
12License:  Remixing or Changing this Thing is allowed. Commercial use is not allowed.
13*/
14  
15#include <AFMotor.h>
16  
17//initial motors pin
18AF_DCMotor motor1(1,  MOTOR12_1KHZ);
19AF_DCMotor motor2(2, MOTOR12_1KHZ);
20AF_DCMotor motor3(3, MOTOR34_1KHZ);
21AF_DCMotor  motor4(4, MOTOR34_1KHZ);
22  
23int val;
24int Speeed = 255;
25  
26void setup()
27{
28  Serial.begin(9600);  //Set the baud rate to your Bluetooth module.
29}
30void  loop(){
31  if(Serial.available() > 0){
32    val = Serial.read();
33      
34    Stop(); //initialize with motors stoped
35      
36          if (val == 'F'){
37          forward();
38          }
39  
40          if (val == 'B'){
41          back();
42          }
43  
44          if (val == 'L'){
45          left();
46          }
47  
48          if (val == 'R'){
49          right();
50          }
51          if  (val == 'I'){
52          topright();
53          }
54  
55          if (val  == 'J'){
56          topleft();
57          }
58  
59          if (val == 'K'){
60          bottomright();
61          }
62  
63          if (val == 'M'){
64          bottomleft();
65          }
66          if (val == 'T'){
67          Stop();
68          }
69  }
70}
71           
72  
73            
74  
75  
76  
77void  forward()
78{
79  motor1.setSpeed(Speeed); //Define maximum velocity
80  motor1.run(FORWARD);  //rotate the motor clockwise
81  motor2.setSpeed(Speeed); //Define maximum velocity
82  motor2.run(FORWARD); //rotate the motor clockwise
83  motor3.setSpeed(Speeed);//Define  maximum velocity
84  motor3.run(FORWARD); //rotate the motor clockwise
85  motor4.setSpeed(Speeed);//Define  maximum velocity
86  motor4.run(FORWARD); //rotate the motor clockwise
87}
88  
89void back()
90{
91  motor1.setSpeed(Speeed); //Define maximum velocity
92  motor1.run(BACKWARD); //rotate the motor anti-clockwise
93  motor2.setSpeed(Speeed);  //Define maximum velocity
94  motor2.run(BACKWARD); //rotate the motor anti-clockwise
95  motor3.setSpeed(Speeed); //Define maximum velocity
96  motor3.run(BACKWARD);  //rotate the motor anti-clockwise
97  motor4.setSpeed(Speeed); //Define maximum  velocity
98  motor4.run(BACKWARD); //rotate the motor anti-clockwise
99}
100  
101void  left()
102{
103  motor1.setSpeed(Speeed); //Define maximum velocity
104  motor1.run(BACKWARD);  //rotate the motor anti-clockwise
105  motor2.setSpeed(Speeed); //Define maximum  velocity
106  motor2.run(BACKWARD); //rotate the motor anti-clockwise
107  motor3.setSpeed(Speeed);  //Define maximum velocity
108  motor3.run(FORWARD);  //rotate the motor clockwise
109  motor4.setSpeed(Speeed); //Define maximum velocity
110  motor4.run(FORWARD);  //rotate  the motor clockwise
111}
112  
113void right()
114{
115  motor1.setSpeed(Speeed);  //Define maximum velocity
116  motor1.run(FORWARD); //rotate the motor clockwise
117  motor2.setSpeed(Speeed); //Define maximum velocity
118  motor2.run(FORWARD); //rotate  the motor clockwise
119  motor3.setSpeed(Speeed); //Define maximum velocity
120  motor3.run(BACKWARD); //rotate the motor anti-clockwise
121  motor4.setSpeed(Speeed);  //Define maximum velocity
122  motor4.run(BACKWARD); //rotate the motor anti-clockwise
123}
124  
125void topleft(){
126  motor1.setSpeed(Speeed); //Define maximum velocity
127  motor1.run(FORWARD); //rotate the motor clockwise
128  motor2.setSpeed(Speeed);  //Define maximum velocity
129  motor2.run(FORWARD); //rotate the motor clockwise
130  motor3.setSpeed(Speeed/3.1);//Define maximum velocity
131  motor3.run(FORWARD);  //rotate the motor clockwise
132  motor4.setSpeed(Speeed/3.1);//Define maximum velocity
133  motor4.run(FORWARD); //rotate the motor clockwise
134}
135  
136void topright()
137{
138  motor1.setSpeed(Speeed/3.1); //Define maximum velocity
139  motor1.run(FORWARD);  //rotate the motor clockwise
140  motor2.setSpeed(Speeed/3.1); //Define maximum  velocity
141  motor2.run(FORWARD); //rotate the motor clockwise
142  motor3.setSpeed(Speeed);//Define  maximum velocity
143  motor3.run(FORWARD); //rotate the motor clockwise
144  motor4.setSpeed(Speeed);//Define  maximum velocity
145  motor4.run(FORWARD); //rotate the motor clockwise
146}
147  
148void bottomleft()
149{
150  motor1.setSpeed(Speeed); //Define maximum velocity
151  motor1.run(BACKWARD); //rotate the motor anti-clockwise
152  motor2.setSpeed(Speeed);  //Define maximum velocity
153  motor2.run(BACKWARD); //rotate the motor anti-clockwise
154  motor3.setSpeed(Speeed/3.1); //Define maximum velocity
155  motor3.run(BACKWARD);  //rotate the motor anti-clockwise
156  motor4.setSpeed(Speeed/3.1); //Define maximum  velocity
157  motor4.run(BACKWARD); //rotate the motor anti-clockwise
158}
159  
160void  bottomright()
161{
162  motor1.setSpeed(Speeed/3.1); //Define maximum velocity
163  motor1.run(BACKWARD); //rotate the motor anti-clockwise
164  motor2.setSpeed(Speeed/3.1);  //Define maximum velocity
165  motor2.run(BACKWARD); //rotate the motor anti-clockwise
166  motor3.setSpeed(Speeed); //Define maximum velocity
167  motor3.run(BACKWARD);  //rotate the motor anti-clockwise
168  motor4.setSpeed(Speeed); //Define maximum  velocity
169  motor4.run(BACKWARD); //rotate the motor anti-clockwise
170}
171  
172  
173void Stop()
174{
175  motor1.setSpeed(0); //Define minimum velocity
176  motor1.run(RELEASE);  //stop the motor when release the button
177  motor2.setSpeed(0); //Define minimum  velocity
178  motor2.run(RELEASE); //rotate the motor clockwise
179  motor3.setSpeed(0);  //Define minimum velocity
180  motor3.run(RELEASE); //stop the motor when release  the button
181  motor4.setSpeed(0); //Define minimum velocity
182  motor4.run(RELEASE);  //stop the motor when release the button
183}