#include <Servo.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

int potPin = A2;
int ledPin = 13;
int val = 0;

int pos = 0;

LiquidCrystal_I2C lcd(0x27, 20, 4);

Servo servo;
Servo myservo;

void setup() {
  Serial.begin(9600);
  pinMode(ledPin, OUTPUT);

  servo.attach(3);
  myservo.attach(5);

  lcd.init();
  lcd.begin(20,4);

  for(int i = 0; i< 3; i++)
  {
    lcd.backlight();
    delay(250);
    lcd.noBacklight();
    delay(250);
  }

  lcd.backlight();

}

void loop() {
  int sensorValue = analogRead(2);
  lcd.println(sensorValue);
  val = analogRead(potPin);
  digitalWrite(ledPin, HIGH);
  delay(val);
  digitalWrite(ledPin, LOW);
  delay(val);

  for(pos = 0; pos <= 180; pos += 1){
    servo.write(pos);
    delay(5);
  }
  for(pos = 0; pos >= 180; pos -= 1){
    servo.write(pos);
    delay(5);
  }
  
  for(pos = 0; pos <= 180; pos += 1){
    myservo.write(pos);
    delay(5);
    myservo.write(pos);
    delay(5);
  }

}