Switch case problem in Arduino code I am trying to develop an IR remote for appliances. I have written Arduino code for this purpose. I have used switch case to determine an action from the corresponding IR decode result (HEX), but I am not getting the output.

My code is:

#include &lt;IRremote.h&gt;

int RECV_PIN = 6;
int led = 13;//1FE50AF
int led1 = 12;//1FED827 

boolean previousState=LOW;
boolean previousState1=LOW;
boolean state;
boolean state1;
IRrecv irrecv(RECV_PIN);

decode_results results;

void setup() {
  Serial.begin(9600);
  pinMode(13,OUTPUT);
  pinMode(12,OUTPUT);
  irrecv.enableIRIn();// Start the receiver 
}

void loop() {
  if (irrecv.decode(&amp;results)) {
    Serial.println(results.value, HEX);
    switch(results.value) {
       case '0x1FE50AF':
       if (previousState == LOW) {
         state=HIGH;
         digitalWrite(led,state);
         Serial.println("LED ON");
         previousState=state;
       } else {
         state=LOW;
         digitalWrite(led,state);
         Serial.println("LED Off");
         previousState=state;
       }
       break;

       case '0x1FED827':
       if (previousState1 == LOW) {
         state=HIGH;
         digitalWrite(led1,state1);
         Serial.println("LED ON");
         previousState1=state1;
       } else {
         state1=LOW;
         digitalWrite(led1,state1);
         Serial.println("LED off");
         previousState1=state1;
       }
       break;
    }   
    irrecv.resume(); // Receive the next value
  }
}
Replace all:

case '0xZZZZZZZZ':


with:

case 0xZZZZZZZZ:


That's because value in decode_results structure is declared as unsigned long, 0xZZZZZZZZ is an unsigned long, but '0xZZZZZZZZ' is not (actually, it should not even compile).