Encoder Volume Control

#include <HID-Project.h>
#include <HID-Settings.h>

#define REVERSED false //if your controller is reversed change it to true

#define CLK 4
#define DT 5
#define SW 3

int volume = 0;
int currentStateCLK;
int lastStateCLK;
unsigned long lastButtonPress = 0;

void setup() {
	
	pinMode(CLK,INPUT);
	pinMode(DT,INPUT);
	pinMode(SW, INPUT_PULLUP);


	lastStateCLK = digitalRead(CLK); //CLK value
}

void loop() {
	
	currentStateCLK = digitalRead(CLK); //CLK current value
  
  if (currentStateCLK != lastStateCLK  && currentStateCLK == 1){  //CLK change && CLK only 1state change

		if (digitalRead(DT) != currentStateCLK) { //Encoder CCW Rotation
      Consumer.write(MEDIA_VOLUME_UP); //Volume Up
      volume++;
      delay(2);

		} else {			// Encoder CW Rotation
      Consumer.write(MEDIA_VOLUME_DOWN); //Volume Down
      volume--
      ;
      delay(2);
		}

	}

	lastStateCLK = currentStateCLK; // Last CLK Value

		int btnState = digitalRead(SW); // Button Value

		if (btnState == LOW) { // Switch pushed

    if (millis() - lastButtonPress > 50) { // Over 50ms
    Consumer.write(MEDIA_VOLUME_MUTE);
		}
    lastButtonPress = millis();
	}

	delay(1); // Push swithc delay
}