#define ENCODER_CLK 33
#define ENCODER_DT  31
#define ENCODER_BTN 29

#define LED_1 6
#define LED_2 5
#define LED_3 4
#define LED_4 3

void setup() {
  Serial.begin(115200);
  pinMode(ENCODER_CLK, INPUT);
  pinMode(ENCODER_DT, INPUT);
  pinMode(ENCODER_BTN, INPUT_PULLUP);
  pinMode(LED_1, OUTPUT);
}

int lastClk = HIGH;

void loop() {
  int newClk = digitalRead(ENCODER_CLK);
  if (newClk != lastClk) {
    // There was a change on the CLK pin
    lastClk = newClk;
    int dtValue = digitalRead(ENCODER_DT);
    if (newClk == LOW && dtValue == HIGH) {
     Serial.println("Rotated clockwise ⏩");
        if (digitalRead(ENCODER_BTN) == LOW)  {
    digitalWrite(LED_2, HIGH);
  } else {
    digitalWrite(LED_2, LOW);
  }
    
    
    }
    if (newClk == LOW && dtValue == LOW) {
      Serial.println("Rotated counterclockwise ⏪");
    }
  }
    if (digitalRead(ENCODER_BTN) == LOW) {
    digitalWrite(LED_1, HIGH);
  } else {
    digitalWrite(LED_1, LOW);
  }

}