How to pass the hex value to a variable in another void

Using Arduino Programming Questions
1

Hello, how to pass the hex value to a variable in another procedure (void)

My code

#include <IRremote.h>
#include <IRremoteInt.h>
int RECV_PIN = 11;
byte ircom;
IRrecv irrecv(RECV_PIN);
decode_results results;
IRsend irsend;
void setup()
{
  Serial.begin(9600);
  irrecv.enableIRIn(); // Start the receiver
}

void irir(variable(oto)) //<-- here
{
irsend.sendNEC(oto, 32);  
irrecv.enableIRIn();
   irrecv.resume();

   Serial.println(oto);
}


void loop() {
   if (irrecv.decode(&results)) {
 
      switch (results.value) {
         case 0x2F5807F:
         {
             //irsend.sendNEC(, 32); 
             Serial.println("OK!");
             irir(0x807F58A7); //<--- this value
            break;
            }
          }


   }   
 
}
2 
Serial.begin(9600);

Here, you are passing the hex value 0x2580 to a function.

variable(oto) is "unsigned long oto"

3

I do not understand why I should use the serial port to pass values to a variable in another procedure. I think I explained what I mean in the picture.
Regards

4

Instead of

void irir(variable(oto)) //<-- here

Try:

void irir(unsigned long oto) {
5 
Serial.begin(9600);

Is an example of passing a value to a function. In this case a decimal value

The point is that it is exactly the same as doing

Serial.begin(0x2580);

Hex is only one of many ways to represent a number

6

The serial was just an example. Your code looks OK at first glance.

What is your problem?

If you don't want to pass a hard-coded value, you can pass results.value in the function call.

7

jremington:
Instead of

void irir(variable(oto)) //<-- here

Try:

void irir(unsigned long oto) {

Thank you, also works.

8

Why my arduino frezzing after few uses.

#include <IRremote.h>
#include <IRremoteInt.h>
int RECV_PIN = 11;
long ot = 0x0000000;
IRrecv irrecv(RECV_PIN);
decode_results results;
IRsend irsend;
void setup()
{
  irrecv.enableIRIn(); // Start the receiver
}

void irir(unsigned long oto)
{
irsend.sendNEC(oto, 32); 
  irrecv.enableIRIn(); 
  delay(500);

}


void loop() {  
 
   if (irrecv.decode(&results)) {
 ot=results.value;
      switch (ot) {
         case 0x2F5807F: {  irir(0x807F58A7); break; }
         case 0x2F5C03F: {  irir(0x807FE817); break; } 
         case 0x2F540BF: {  irir(0x5FA38C7); break; } 
         case 0x2F59867: {  irir(0xE8AFBC77); break; } 
         case 0x2F548B7: {  irir(0x807F42BD); break; } 
         case 0x2F5A05F: {  irir(0x807FB04F); break; } 
         case 0x2F57887: {  irir(0x5FABA45); break; } 
         case 0x2F5F00F: {  irir(0x5FA02FD); break; } 

          }
   }   

}
9

No resume?

10

After a few uses, it hangs and does not resume, it also happens as I hold the button on the remote control.

11

You don't have a call to resume (that I can see)

12