Robotic Car controlled over IR Remote

1#include <IRremote.h>
2
3/* define IR sensor pin */
4int IRsensorPin  = 12;
5
6/* define the some functions used by the library */
7IRrecv irrecv(IRsensorPin);
8decode_results  results;
9
10/* define L298N motor drive control pins */
11int RightMotorForward  = 2;    // IN1
12int RightMotorBackward = 3;   // IN2
13int LeftMotorForward =  4;     // IN3
14int LeftMotorBackward = 5;    // IN4
15int LeftLED = 6;
16int  RightLED = 7;
17
18void setup(){
19  
20  /* initialize motor control pins as  output */
21  pinMode(LeftMotorForward,OUTPUT);
22  pinMode(RightMotorForward,OUTPUT);
23  pinMode(LeftMotorBackward,OUTPUT);
24  pinMode(RightMotorBackward,OUTPUT);
25  pinMode(LeftLED,OUTPUT);
26  pinMode(RightLED,OUTPUT);
27
28  /* start serial  communication to see hex codes */
29  Serial.begin(9600);
30  irrecv.enableIRIn();
31}
32
33void  loop(){
34  
35  /* if the sensor is receive any signal */
36  if (irrecv.decode(&results)){
37    
38    /* print the hex code value on the serial monitor */
39    Serial.println(results.value);
40    delay(5);
41
42    /* resume function according to hex code */
43    irrecv.resume();
44  }
45 
46  if(results.value == 752) MotorForward();
47  if(results.value ==  2800) MotorBackward();
48  if(results.value == 3280) TurnRight();
49  if(results.value  == 720) TurnLeft();
50  if(results.value == 2672) MotorStop();
51  
52}
53
54/*  FORWARD */
55void MotorForward(){
56  digitalWrite(LeftLED,LOW);
57  digitalWrite(RightLED,LOW);
58  digitalWrite(LeftMotorForward,HIGH);
59  digitalWrite(RightMotorForward,HIGH);
60  digitalWrite(LeftMotorBackward,LOW);
61  digitalWrite(RightMotorBackward,LOW);  
62}
63
64/* BACKWARD */
65void MotorBackward(){
66  digitalWrite(LeftLED,LOW);
67  digitalWrite(RightLED,LOW);
68  digitalWrite(LeftMotorBackward,HIGH);
69  digitalWrite(RightMotorBackward,HIGH);
70  digitalWrite(LeftMotorForward,LOW);
71  digitalWrite(RightMotorForward,LOW);
72}
73
74/*  TURN RIGHT */
75void TurnRight(){
76  digitalWrite(LeftLED,LOW);
77  digitalWrite(LeftMotorForward,HIGH);  
78  digitalWrite(RightMotorForward,LOW);
79  digitalWrite(LeftMotorBackward,LOW);
80  digitalWrite(RightMotorBackward,HIGH);
81  digitalWrite(RightLED,HIGH);
82}
83
84/*  TURN LEFT */
85void TurnLeft(){
86  digitalWrite(RightLED,LOW);
87  digitalWrite(RightMotorForward,HIGH);  
88  digitalWrite(LeftMotorForward,LOW);
89  digitalWrite(LeftMotorBackward,HIGH);
90  digitalWrite(RightMotorBackward,LOW);
91  digitalWrite(LeftLED,HIGH);
92}
93
94/*  STOP */
95void MotorStop(){
96  digitalWrite(LeftLED,LOW);
97  digitalWrite(RightLED,LOW);
98  digitalWrite(LeftMotorBackward,LOW);
99  digitalWrite(RightMotorBackward,LOW);
100  digitalWrite(LeftMotorForward,LOW);
101  digitalWrite(RightMotorForward,LOW);
102}