Arduino IR Control

// Include Library's
#include <Wire.h>
#include "LiquidCrystal.h"
#include <IRremote.h>
// Connect via i2c
LiquidCrystal LCD(0);


const uint16_t BUTTON_CHMI = 0xA25D;
const uint16_t BUTTON_CHAN = 0x629D;
const uint16_t BUTTON_CHPL = 0xE21D;

const uint16_t BUTTON_PREV = 0x22DD;
const uint16_t BUTTON_NEXT = 0x02FD;
const uint16_t BUTTON_PLAY = 0xC23D;

const uint16_t BUTTON_MINUS = 0xE01F;
const uint16_t BUTTON_PLUS  = 0xA857;
const uint16_t BUTTON_BACK    = 0x906F;

const uint16_t BUTTON_0    = 0x6897;
const uint16_t BUTTON_100p = 0x9876;
const uint16_t BUTTON_200p = 0xB04F;

const uint16_t BUTTON_1 = 0x30CF;
const uint16_t BUTTON_2 = 0x18E7;
const uint16_t BUTTON_3 = 0x7A85;

const uint16_t BUTTON_4 = 0x10EF;
const uint16_t BUTTON_5 = 0x38C7;
const uint16_t BUTTON_6 = 0x5AA5;

const uint16_t BUTTON_7 = 0x42BD;
const uint16_t BUTTON_8 = 0x4AB5;
const uint16_t BUTTON_9 = 0x52AD;

int back;

IRrecv IR(5);

decode_results results;
uint16_t lastCode = 0;

void setup() {
  Serial.begin(9600);
  LCD.begin(16, 2); //Setup LCD display as 16 by 2
  LCD.setBacklight(HIGH);

  IR.enableIRIn();

  printAtPosition(4, 0, "ACE Home");
  printAtPosition(5, 1, "System");
  delay(700);
  clearLine(0);
  printAtPosition(5, 0, "Welkom");
  delay(700);
  clearLine(0);
}

void loop() {
  if (IR.decode(&results)) {
    uint16_t resultCode = (results.value & 0xFFFF);
    //De remote blijft 0XFFFFFFFF doorsturen als de knop blijft ingedrukt

    if (resultCode == 0xFFFF) {
      resultCode = lastCode;
    } else {
      lastCode = resultCode;
    }

    switch (resultCode) {
      case BUTTON_CHMI:
        back = 0;
        while(true){

          Serial.println("Temperture button pressed:");
          printAtPosition(2, 0, "Temperature: ");
          int x = 20;
          printAtPosition(2, 1, String(x));
          printAtPosition(10, 1, "+/-");

          IR.resume();
          Serial.println("Entering IRDECODE if");
          if (IR.decode(&results)) {
            Serial.println("Entered");
            uint16_t resultCode = (results.value & 0xFFFF);
            if (resultCode == 0xFFFF) {
              resultCode = lastCode;
            } else {
              lastCode = resultCode;
            }
            Serial.println("Entering Switch");
            switch (resultCode) {
              case BUTTON_PLUS:
                Serial.println("Plus pressed");
                x++;
              case BUTTON_MINUS:
                Serial.println("Minus pressed");
                x--;
              case BUTTON_BACK:
                Serial.println("Back pressed");
                back = 1;
            }
            if(back==1){break;};
          }
        }
    }
  IR.resume();
  }
  clearLine(0);

}

void printAtPosition(int x, int y, String text) {
  LCD.setCursor(x, y);
  LCD.print(text);
}
void clearLine(int y) {
  if (y == 1) {
    LCD.setCursor(0, 0);
    LCD.print("                ");
  }
  if (y == 2) {
    LCD.setCursor(0, 1);
    LCD.print("                ");
  }
  if (y == 0) {
    LCD.setCursor(0, 0);
    LCD.print("                ");
    LCD.setCursor(0, 1);
    LCD.print("                ");
  }
}