// https://forum.arduino.cc/t/my-ir-project-code-does-not-work-the-same-after-not-using-it-after-a-while/1458033/4

#include <IRremote.h>

#define RECV_PIN 5  // Pin du capteur IR
#define LED 3       // LED pin

void setup() {
  Serial.begin(9600);
  // turn on reciever
  IrReceiver.begin(RECV_PIN, ENABLE_LED_FEEDBACK);
  Serial.println("IR Receiver Ready");
}

int i = 0;
int const x = 51;
int g = 1;

void loop() {

  if (IrReceiver.decode()) {
    // Print the hex code
    Serial.print("HEX Code : 0x");
    Serial.print(IrReceiver.decodedIRData.decodedRawData, HEX);
      Serial.print(" (no) ");
      Serial.print(" g=");
      Serial.print(g);
      analogWrite(LED, i);
      Serial.print(" i=");
      Serial.print(i);
    IrReceiver.resume();

    // Turn ON
    if (IrReceiver.decodedIRData.decodedRawData == 0x5DA2FF00) {
      analogWrite(LED, 255);
      g = 1;
      i = 255;
      Serial.print(" ON ");
      Serial.print(" g=");
      Serial.print(g);
      analogWrite(LED, i);
      Serial.print(" i=");
      Serial.print(i);
    }
    // IrReceiver.resume();

    // Turn OFF
    if (IrReceiver.decodedIRData.decodedRawData == 0x1DE2FF00) {
      analogWrite(LED, 0);
      g = 0;
      Serial.print(" OFF ");
      Serial.print(" g=");
      Serial.print(g);
      analogWrite(LED, i);
      Serial.print(" i=");
      Serial.print(i);
    }
    // IrReceiver.resume();

    // Brightness UP
    if (IrReceiver.decodedIRData.decodedRawData == 0x6F90FF00 && i < 255 && g == 1) {

      i = i + x;
      g = 1;
      Serial.print(" g=");
      Serial.print(g);
      analogWrite(LED, i);
      Serial.print(" i=");
      Serial.print(i);
      Serial.print(" UP ");
    }
    // IrReceiver.resume();

    // Brightness DOWN
    if (IrReceiver.decodedIRData.decodedRawData == 0x1FE0FF00 && i > 51 && g == 1) {
      i = i - x;
      g = 1;
      Serial.print(" g=");
      Serial.print(g);
      analogWrite(LED, i);
      Serial.print(" i=");
      Serial.print(i);
      Serial.print(" DOWN ");
    }

    IrReceiver.resume();
    Serial.println();
  }
}