#include "pitch.h"
#define SPEAKER_PIN 8
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,20,4);  // set the LCD address to 0x27 for a 16 chars and 2 line display


void setup() {
  pinMode(13, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);

  pinMode(10, INPUT);


  pinMode(9, OUTPUT);

 lcd.init();                      // initialize the lcd
  // Print a message to the LCD.
  lcd.backlight();
  lcd.setCursor(1,1);
  lcd.print("mid term");

}

void loop() {
  digitalWrite(13, HIGH);
  delay(500);
  digitalWrite(13, LOW);
  delay(100);
  digitalWrite(7, HIGH);
  delay(500);
  digitalWrite(7, LOW);
  delay(100);
  digitalWrite(8, HIGH);
  delay(500);
  digitalWrite(8, LOW);
  delay(100);

  if (digitalRead(10) == HIGH) {  tone(9, 494, 300);  delay(500);  
  tone(9, 392, 300);  delay(500);  tone(9, 784, 150); delay(300); 
  tone(9, 784, 300); delay(500);  tone(9,784, 200 );}
  
{
 lcd.init();                      // initialize the lcd
  // Print a message to the LCD.
  lcd.backlight();
  lcd.setCursor(1,1);
  lcd.print("mid term");
  delay(300);
  lcd.setCursor(1,1);
  lcd.print("                ");
    lcd.setCursor(1,0);
  lcd.print("mid term");
  delay(200);
}
  
  

}