Wrong Remote Control Decodification

Other Hardware Sensors
1

I wrote a program which would put on or off my room lights and fan, but when I try it, sometimes my Arduino detects different codes from the same control button, I do not Know whats going on or why, could someone help me?

Here I add a part of the code because it is so long
Please, help me, Thank you :frowning:

#include <IRremote.h>
#include <SoftwareSerial.h>

SoftwareSerial Bluetooth (11, 10); //Tx & Rx

const int infra = 3;
const int light = 4;
const int desktop = 5;
const int fan = 6;
//bool state = false;
bool li = false;
bool des = false;
bool fa = false;
int timer = 0;
String words;
char text[25];
int n = 0;
int modes = 1;
const int photo = 9;
const int sound = 8;
const int BT = 7;


IRrecv irrecv(infra);
decode_results code;


void setup() {
  Serial.begin(9600);
  irrecv.enableIRIn();
  Bluetooth.flush();
  delay(500);
  Bluetooth.begin(9600);
  pinMode (13, OUTPUT);
  pinMode (light, OUTPUT);
  pinMode (desktop, OUTPUT);
  pinMode (fan, OUTPUT);
  pinMode (BT, OUTPUT);
  pinMode (12, INPUT);

}

void loop() {

 digitalWrite(BT, HIGH);
  while (modes == 1){
  if (irrecv.decode(&code) || (Bluetooth.available() > 0)){
    Serial.println(code.value, HEX);
     while (Bluetooth.available() > 0){
      text[n] = char(Bluetooth.read());
      Serial.println (text);
      n++;
  }
    words = text;
    Serial.print(words);
  //Serial.println(code.value, HEX);
    if (code.value == 0xFF30CF || words == "li")
      li = !li;

    if (code.value == 0xFF18E7 || words == "des")
      des = !des;

    if (code.value == 0xFF7A85 || words == "fa")
      fa = !fa;

    if (code.value == 0xFFE21D || words == "all"){
     li = false;
     des = false;
     fa = false;
    }
  
    if (code.value == 0xFFA25D || words == "none"){
      li = true;
      des = true;
      fa = true;
    }
    if (code.value == 0xFF9867)
      modes = 2;

    if (code.value == 0xFFB04F)
      modes = 3;
  
  //timer = 1;
  irrecv.resume();
  delay(500);
  }

 if (li == false){
  digitalWrite (light, LOW);
 }else
  digitalWrite (light, HIGH);

 if (des == false){
  digitalWrite (desktop, LOW);
 }else
  digitalWrite (desktop, HIGH);

 if (fa == false){
  digitalWrite (fan, LOW);
 }else
  digitalWrite (fan, HIGH);

  words = "xyz";
    while (n >= 0){
      text[n] = '\0';
      if (n == 0)
      break;                           
      
      n--;
    }
  }
2

This snippet prints a (possibly invalid) IR code, any time a character is available from Bluetooth. Is that a good idea?

  if (irrecv.decode(&code) || (Bluetooth.available() > 0)){
    Serial.println(code.value, HEX);

Start by writing a program that just reads and prints IR codes. When that is working perfectly, add other functions.