Arduino based TV Remote

/* This code is used to transmit infrared signals in the HEX format
 *  Depending on which of the Buttons is pressed.Each of the buttons  
 *  gives out different values which is then read by the analog pin A0
 *  The HEX codes used are those gotten from the actual TV remote*/
 
#include <IRremote.h>
IRsend irsend; 
// The IR led is connected to pin D3
int command; 
void setup(){
 Serial.begin(9600);
}
void loop(){
  command = analogRead(A0); // reads corresponding value from A0 pin
  
  switch(command){
    case 1023: // value gotten when PB1 is pressed
    irsend.sendNEC(0x20DF807F,32);// Sends the Hex code for CH-
    break;
    case 465: // value gotten when PB2 is pressed
    irsend.sendNEC(0x20DFC03F,32); // sends the Hex code for V-
    break;
    case 291: // PB3 value
    irsend.sendNEC(0x20DF40BF,32);  // V+
    break;
    case 91:  // PB6 value
    irsend.sendNEC(0x20DF00FF,32);  // CH+
    break;
    case 203: // PB4 value
    irsend.sendNEC(0x20DF10EF,32);  //  0x20DF10EF PWR or OK 20D22DD
    break;
    case 144: // PB5 value
    irsend.sendNEC(0x20DFC23D,32); // MENU
    break;
   
   
  }
  
}