//PINOUT
  const byte pin_encoder_clk = 33;
  const byte pin_encoder_dt=25;
  const byte pin_encoder_sw = 26;

#include "AiEsp32RotaryEncoder.h"
  const byte pin_encoder_vcc = -1 ;
  const byte encoder_steps = 4;
  AiEsp32RotaryEncoder rotaryEncoder = AiEsp32RotaryEncoder(pin_encoder_clk, pin_encoder_dt, pin_encoder_sw, pin_encoder_vcc, encoder_steps);
  void IRAM_ATTR readEncoderISR()
      { rotaryEncoder.readEncoder_ISR();}

void setup()
{
	Serial.begin(115200);

	//initialize rotary encoder
	  rotaryEncoder.begin();
	  rotaryEncoder.setup(readEncoderISR);
	  rotaryEncoder.setBoundaries(-10, 10, false); //minValue, maxValue, circleValues true|false (when max go to min and vice versa)
}

void loop()
{
	//in loop call your custom function which will process rotary encoder values
	encoder_loop();
	delay(50); //or do whatever you need to do...
}