#define ENCODER_CLK 22
#define ENCODER_DT  21
#include <ESP32Servo.h>
int APin = 33;
ESP32PWM pwm;
int freq = 1000;

void setup() {
  Serial.begin(115200);
  pinMode(ENCODER_CLK, INPUT);
  pinMode(ENCODER_DT, INPUT);
  pinMode(33, INPUT);
  // Allow allocation of all timers
	ESP32PWM::allocateTimer(0);
	ESP32PWM::allocateTimer(1);
	ESP32PWM::allocateTimer(2);
	ESP32PWM::allocateTimer(3);
	Serial.begin(115200);
	pwm.attachPin(APin, freq, 10); // 1KHz 8 bit
}
int click = 0;
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 ⏩");
      click += 10;
      Serial.println(click);
    }
    if (newClk == LOW && dtValue == LOW) {
      Serial.println("Rotated counterclockwise ⏪");
      click -= 10;
      Serial.println(click);
    }
  }
  pwm.writeScaled(click);
  freq = 1000;
	pwm.adjustFrequency(freq, 0.0);    // reset the time base
}