#include <ESP32Servo.h>
int ledPin = 33;
int digitalPin = 27;
int val = 0;
int vavlue0;
int pos = 0;
Servo myservo;

Servo servo;

void setup() 
{
  Serial.begin(115200);
  servo.attach(21);
  pinMode(14, INPUT_PULLUP);
  pinMode(25, INPUT_PULLUP);
  pinMode(27, INPUT);
  pinMode(ledPin, OUTPUT);
  pinMode(digitalPin, INPUT);
  Serial.begin(9600);
}

void loop()
 {
  val = digitalRead(digitalPin);
  Serial.print("val = ");
  Serial.println(val);
  if (val==1){
    digitalWrite(ledPin, HIGH);
    delay(8000);
  }
  else {
    digitalWrite(ledPin, LOW);
  }
  delay(100);
 }
 
  if (digitalRead(14)==LOW)
 {
  pos++;
  Serial.println(pos);
  servo.write(pos);
  delay(10);
  if(pos>=200)
     pos=200;
 }
  if (digitalRead(25)==LOW)
 {
  pos--;
  Serial.println(pos);
  servo.write(pos);
  delay(10);
   if (pos<=0)
     pos=0;
 }
 }