A Beginner's Guide: Controlling an Arduino Car with a Remote

1#include<IRremote.h>
2const int RemotePin=8;
3IRrecv irrecv(RemotePin);
4decode_results results;
5void setup() {
6  // put your setup code here, to run once:
7  Serial.begin(9600);
8  irrecv.enableIRIn();
9}
10
11void loop() {
12  // put your main code here, to run repeatedly:
13  if(irrecv.decode(&results))
14  {
15    Serial.println(results.value, HEX);
16    delay(200);
17    irrecv.resume();
18  }
19}

1#include<IRremote.h>
2const int RemotePin=8;
3IRrecv irrecv(RemotePin);
4decode_results results;
5int in1=3;
6int in2=5;
7int in3=6;
8int in4=9;
9
10void setup() {
11  Serial.begin(9600);
12  irrecv.enableIRIn();
13  pinMode(in1, OUTPUT);
14  pinMode(in2, OUTPUT);
15  pinMode(in3, OUTPUT);
16  pinMode(in4, OUTPUT);
17    
18}
19
20void loop() {
21  
22    if(irrecv.decode(&results))
23      {
24        if (results.value==0xFF629D)//Press UP Button
25        { 
26          Forward();
27        }
28        else if (results.value==0xFFA857)//Press Down Button
29        { 
30          Backward();
31        }
32         else if (results.value==0xFF22DD)//Press Left Button
33        { 
34          Left();
35        }
36        else if (results.value==0xFFC23D)//Press Right Button
37        { 
38          Right();
39        }
40        else if (results.value==0xFF02FD)//Stop
41        { 
42          Stop();
43        }
44      irrecv.resume();
45    }
46    }
47   
48 
49void Backward()
50  {
51  digitalWrite(in1,HIGH);
52  digitalWrite(in2,LOW);
53  digitalWrite(in3,HIGH);
54  digitalWrite(in4,LOW);
55  }
56 void Forward()
57  {
58  digitalWrite(in1,LOW);
59  digitalWrite(in2,HIGH);
60  digitalWrite(in3,LOW);
61  digitalWrite(in4,HIGH);
62  }
63 void Stop()
64  {
65  digitalWrite(in1,LOW);
66  digitalWrite(in2,LOW);
67  digitalWrite(in3,LOW);
68  digitalWrite(in4,LOW);
69  }
70  int Left()
71    {
72    digitalWrite(in1,LOW);
73    digitalWrite(in2,LOW);
74    digitalWrite(in3,LOW);
75    digitalWrite(in4,HIGH);
76    }
77  int Right()
78    {
79    digitalWrite(in1,LOW);
80    digitalWrite(in2,HIGH);
81    digitalWrite(in3,LOW);
82    digitalWrite(in4,LOW);
83    }