#include <Servo.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);
Servo servo1
int degree=0;
void setup() {
 Serial.begin(9600);
 pinMode(20, INPUT_PULLUP);
 pinMode(21, INPUT_PULLUP);
 servo1.attach(13);
 servo1.write(degree);
 lcd.init();
 lcd.clear();
 lcd.backlight();
 lcd.setCursor(0,0);
 lcd.print("Welcome");
}
void loop() {
 Serial.println(digitalRead(21));
 Serial.println(digitalRead(20));
 if(digitalRead(20)==0){
   if(degree>0)
  degree=degree-10;
  lcd.clear();
  lcd.setCursor(1,1);
  lcd.print(degree);
  servo1.write(degree);
 }
}
if(digitalRead(21)==0){
 if(degree<180){
    degree=degree+10;
    lcd.clear();
    lcd.setCursor(1,1);
    lcd.print(degree);
    servo1.write(degree);
 }
delay(100)







}