#include<LiquidCrystal_I2C.h>
#include<Wire.h>
#include <IRremote.h>

// 
const int RECV_PIN = 2;
const int NUM_OF_BUTS = 21;
long BUTTON_CODES[NUM_OF_BUTS] = {
16729530,
16730040,
16729275,
16728255,
16729020,
16713720,
16717290,
16714230,
16717545,
16718310,
16715250,
16714995,
16718055,
16735905,
16713975,
16719075,
16734885,
16728765,
16732845,
16730805
};

String BUTTON_NAMES[NUM_OF_BUTS] = {
  "POWER","MENU","Test","VOL+","BACK",
  "PREV/LEFT","PAUSE/MUTE","NEXT/RIGTH",
  "0","VOL-","CH","1","2","3","4","5","6","7","8","9"
};

int findButton(long val){
  for(int i = 0; i < NUM_OF_BUTS; i++){
    if(val == BUTTON_CODES[i]){ 
      return i;
    }
  }
  return val;
}

IRrecv irrecv(RECV_PIN);
decode_results results;

void setup(){
  Serial.begin(9600);
  irrecv.enableIRIn(); // Start the receiver
}



void loop() {
  if (irrecv.decode(&results)) {
    //Serial.println(results.value, HEX);
    int button_id = findButton(results.value);
    // Serial.println(results);
    if (button_id <0) {
      Serial.println("Unknown button is pressed!");
    } else {
      Serial.print("Button ");
      Serial.print(BUTTON_NAMES[button_id]);
      Serial.println(" is pressed!");
    }
    irrecv.resume(); // Receive the next value
  }
}