//R ปรับค่าได้
#include <LiquidCrystal_I2C.h>     //ต้อง

#include <Servo.h>
LiquidCrystal_I2C lcd(0x27,16,2 );   //ต้องมี
Servo servo;


void setup() {
   servo.attach (5);
  pinMode(A0, INPUT);
  pinMode(9, OUTPUT);
   lcd.init();  //ต้องมี
   lcd.backlight(); //ต้องมี
   
  
}///////////////////////////


void loop() {
  int vol = analogRead(A0);
  int vol1 = map(vol,0,1023,0,255);

  analogWrite(9,vol);

  servo.write(0);
  delay(1000);
  servo.write(90);
  delay(1000);
  servo.write(180);
  delay(1000);


  lcd.setCursor(0,0);
  lcd.print("volumm =");
  lcd.setCursor(9,0);
  lcd.print(vol);
  delay(1000);
  lcd.clear();


  
  

} /////////////////////////