#include <ESP32Servo.h>
#include <driver/ledc.h>
#include <LedControl.h>
Servo myservo;
int servoPin = 12;
#define LED 22
#define BTN1 18
#define BTN2 19
#define BTN3 21
#define BTN0 5
#define BTNSpin 33
// setting PWM properties
const int freq = 1000;
const int ledChannel = 0;
const int resolution = 8;
int dutyCycle;
int pos = 0;
void setup() {
  pinMode(BTN0, INPUT); // btn0 pin to input mode
  pinMode(BTN1, INPUT); // btn1 pin to input mode
  pinMode(BTN2, INPUT); // btn2 pin to input mode
  pinMode(BTN3, INPUT); // btn3 pin to input mode
  pinMode(BTNSpin, INPUT); //btnspin pin to input mode
  // attach the channel to the GPIO to be controlled
  ledcAttachPin(LED, ledChannel);
  // configure LED PWM functionalitites
  ledcSetup(ledChannel, freq, resolution);
  myservo.attach(servoPin);
}

void loop() {
  if(digitalRead(BTN0)==HIGH) { 
    digitalWrite(BTNSpin, LOW);
    dutyCycle = 0;
    ledcWrite(ledChannel, dutyCycle);
  }
  if(digitalRead(BTN1)==HIGH) { 
    dutyCycle = 85;
    ledcWrite(ledChannel, dutyCycle);
  }
  if(digitalRead(BTN2)==HIGH) { 
    dutyCycle = 170;
    ledcWrite(ledChannel, dutyCycle);
  }
  if(digitalRead(BTN3)==HIGH) { 
    dutyCycle = 255;
    ledcWrite(ledChannel, dutyCycle);
  }
  if(digitalRead(BTNSpin)==HIGH) { 
    for (pos = 0; pos <= 180; pos += 1) {
      myservo.write(pos);
      delay(15);
    }
    for (pos = 180; pos >= 0; pos -= 1) {
      myservo.write(pos);
      delay(15);
    }
  }
}