Switch case problem in Arduino code

Question

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 <IRremote.h>
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(&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
 }
}

• Jesse: Hi, welcome to Arduino.SX. You can use { } on top of the editor bar to mark you code so they all become readable between text and codes.

Answer 1

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).