If statement with IRremote library

Using Arduino Programming Questions
1

I have surround sound that doesn't have remote control option but I have attached a motor to the knob with arduino and have an IR receiver. From the examples I have found I have been unable to get a working if statement for a signal from the IR receiver.

Please let me know if you need additional information.

2

Please let me know if you need additional information.

Seeing the code would be helpful.

Did you read this before posting a programming question ?

3

Here is the complete/ but short code for the using the project with serial monitor (as well as what I understand of IRreciever).

#include <IRremote.h>
#include <IRremoteInt.h>


int RECV_PIN = 11;
IRrecv irrecv(RECV_PIN);
decode_results results;
int motorSpeed;
boolean muteToggle;
byte x;

void setup() {
  pinMode(2, OUTPUT); //direction switch
  pinMode(3, OUTPUT); //direction switch
  pinMode(9, OUTPUT); //speed control
  irrecv.enableIRIn(); //start the reciever
  muteToggle = true;
  motorSpeed = 0;
  Serial.begin(9600);
}


void loop() {
  byte x = Serial.read();
  if (x == B00111000) { //8
    volumeUp();
  }
  if (x == B00110010) { //2
    volumeDown();
  }
  if (x == B00110101) { //5
    if (muteToggle == true) {
      mute();
    }
    if (muteToggle == false) {
      unMute();
    }
    muteToggle = !muteToggle;
  }
  irrecv.resume(); // Receive the next value
}

void volumeUp() {
  digitalWrite(2, HIGH);
  digitalWrite(3, LOW);
  motorSpeed = 200;
  analogWrite(9, motorSpeed);
  delay(236);//volume up
  motorSpeed = 0;
  analogWrite(9, motorSpeed);
  muteToggle = true;
}

void volumeDown() {
  digitalWrite(2, LOW);
  digitalWrite(3, HIGH);
  motorSpeed = 200;
  analogWrite(9, motorSpeed);
  delay(450); //volume
  motorSpeed = 0;
  analogWrite(9, motorSpeed);
  muteToggle = true;
}

void mute() {
  digitalWrite(2, LOW);
  digitalWrite(3, HIGH);
  motorSpeed = 200;
  analogWrite(9, motorSpeed);
  delay(12000);
  motorSpeed = 0;
  analogWrite(9, motorSpeed);
}

void unMute() {
  digitalWrite(2, HIGH);
  digitalWrite(3, LOW);
  motorSpeed = 200;
  analogWrite(9, motorSpeed);
  delay(1000);
  motorSpeed = 0;
  analogWrite(9, motorSpeed);
}

Here is the blog post and IR product I am using.

http://tech.yeesiang.com/receive-ir-value-with-arduino/
I want pressing "+", "-" and mute within if statements.

4 
  byte x = Serial.read();

Whaaaaa? Aren't you looking for IR input?

5

I was using serial monitor for troubleshooting and forgot to re-include the IR remote aspect. The hex codes are different as my remote is different than the one in the blog post above.

#include <IRremote.h>
#include <IRremoteInt.h>


int RECV_PIN = 11;
IRrecv irrecv(RECV_PIN);
decode_results results;
int motorSpeed;
boolean muteToggle;
char x;
word HEXcode;

void setup() {
  pinMode(2, OUTPUT); //direction switch
  pinMode(3, OUTPUT); //direction switch
  pinMode(9, OUTPUT); //speed control
  irrecv.enableIRIn(); //start the reciever
  muteToggle = true;
  motorSpeed = 0;
  Serial.begin(9600);
}


void loop() {
  if (irrecv.decode(&results)) {
    Serial.println(results.value, HEX);
    HEXcode = (results.value, HEX);
    if (HEXcode == "FD807F"({
    volumeUp();
    }
    if (HEXcode == "FD906F"({
    volumeDOWN();
    }
    if (HEXcode == "FDA05F"({
    if (muteToggle == true) {
        mute();
      }
      if (muteToggle == false) {
        unMute();
      }
      muteToggle = !muteToggle;
    }
    irrecv.resume(); // Receive the next value
  }
  byte x = Serial.read();
  if (x == B00111000) { //8
    volumeUp();
  }
  if (x == B00110010) { //2
    volumeDown();
  }
  if (x == B00110101) { //5
    if (muteToggle == true) {
      mute();
    }
    if (muteToggle == false) {
      unMute();
    }
    muteToggle = !muteToggle;
  }
}


void volumeUp() {
  digitalWrite(2, HIGH);
  digitalWrite(3, LOW);
  motorSpeed = 200;
  analogWrite(9, motorSpeed);
  delay(236);//volume up
  motorSpeed = 0;
  analogWrite(9, motorSpeed);
  muteToggle = true;
}

void volumeDown() {
  digitalWrite(2, LOW);
  digitalWrite(3, HIGH);
  motorSpeed = 200;
  analogWrite(9, motorSpeed);
  delay(450); //volume
  motorSpeed = 0;
  analogWrite(9, motorSpeed);
  muteToggle = true;
}

void mute() {
  digitalWrite(2, LOW);
  digitalWrite(3, HIGH);
  motorSpeed = 200;
  analogWrite(9, motorSpeed);
  delay(12000);
  motorSpeed = 0;
  analogWrite(9, motorSpeed);
}

void unMute() {
  digitalWrite(2, HIGH);
  digitalWrite(3, LOW);
  motorSpeed = 200;
  analogWrite(9, motorSpeed);
  delay(1000);
  motorSpeed = 0;
  analogWrite(9, motorSpeed);
}

Hopefully this is enough to get the problem solved.

6 
HEXcode = (results.value, HEX);
    if (HEXcode == "FD807F"({

The compiler barfed big time on that.

What's wrong with

    if (results.value== 0xFD807F){
7

Yeah, that was me who barfed. Thanks, problem solved.