#include <IRremote.h>
int PIN_redLED=3;
int PIN_yellowLED=4;
int PIN_blueLED=5;
int PIN_greenLED=6;
int PIN_whiteLED=7;
#define PIN_RECEIVER 2   

IRrecv receiver(PIN_RECEIVER);

void setup()
{ 
pinMode(PIN_redLED, OUTPUT);
pinMode(PIN_yellowLED, OUTPUT);
pinMode(PIN_blueLED, OUTPUT);
pinMode(PIN_greenLED, OUTPUT);
pinMode(PIN_whiteLED, OUTPUT);
receiver.enableIRIn(); 
}

void loop()
{
  
  if (receiver.decode()) {
    translateIR();
    receiver.resume(); 
  }
}

void translateIR()
{
  
  switch (receiver.decodedIRData.command) 
  {
    case 104:                                                          //按钮0
      digitalWrite(PIN_redLED, LOW); 
      digitalWrite(PIN_yellowLED, LOW);
      digitalWrite(PIN_blueLED, LOW);
      digitalWrite(PIN_greenLED, LOW);
      digitalWrite(PIN_whiteLED, LOW);
      break;

    case 48:                                                           //按钮1
      digitalWrite(PIN_yellowLED, LOW); 
      digitalWrite(PIN_redLED, HIGH);
      digitalWrite(PIN_blueLED, LOW);
      digitalWrite(PIN_greenLED, LOW);
      digitalWrite(PIN_whiteLED, LOW);
      break;

    case 24:                                                           //按钮2
      digitalWrite(PIN_blueLED, LOW); 
      digitalWrite(PIN_redLED, LOW);
      digitalWrite(PIN_yellowLED, HIGH);
      digitalWrite(PIN_greenLED, LOW);
      digitalWrite(PIN_whiteLED, LOW);
      break;

    case 122:                                                          //按钮3
      digitalWrite(PIN_greenLED, LOW); 
      digitalWrite(PIN_redLED, LOW);
      digitalWrite(PIN_yellowLED, LOW);
      digitalWrite(PIN_blueLED, HIGH);
      digitalWrite(PIN_whiteLED, LOW);
      break;

    case 16:                                                           //按钮4
      digitalWrite(PIN_whiteLED, LOW); 
      digitalWrite(PIN_redLED, LOW);
      digitalWrite(PIN_yellowLED, LOW);
      digitalWrite(PIN_blueLED, LOW);
      digitalWrite(PIN_greenLED, HIGH);
      break;

    case 56:                                                           //按钮5
      digitalWrite(PIN_redLED, LOW);  
      digitalWrite(PIN_yellowLED, LOW);
      digitalWrite(PIN_blueLED, LOW);
      digitalWrite(PIN_greenLED, LOW);
      digitalWrite(PIN_whiteLED, HIGH);
      break;
  }
}