bomba relogio

#include <LiquidCrystal.h>



LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

 int buttonPushCounter = 0;
 int cutwire = 0;
 int cutwire1 = 0;
 int buttonState7 = 0;
 int buttonState8 = 0;
 int lastButtonState = 0;
 int redled = 9;
 int buzzer = 13;

 void setup(){

   pinMode(7, INPUT);

   pinMode(8, INPUT);

   pinMode(6, INPUT);

   pinMode(10, INPUT);

   pinMode(redled, OUTPUT);

   pinMode(buzzer,OUTPUT);

   lcd.begin(16,2);

   lcd.setCursor(0,0);

   lcd.print("Tempo:");

 }

 void loop(){

   buttonState7 = digitalRead(7);
   buttonState8 = digitalRead(8);
   cutwire = digitalRead(6);
   cutwire1 = digitalRead(10);

   if (buttonState7 != lastButtonState) {

     if (buttonState7 == HIGH)

     {
      buttonPushCounter+=10;
      delay(100);
      lcd.setCursor(7,1);
      lcd.print(buttonPushCounter);

      delay(100);
     }
   }
      buttonState8 = digitalRead(8);

      if(buttonState8 == HIGH){
        while(buttonPushCounter != 0){
        buttonPushCounter = buttonPushCounter - 1;

        digitalWrite(redled, HIGH);
        delay(500);
        digitalWrite(redled, LOW);
        delay(500);

        lcd.setCursor(0,0);
        lcd.print("Detonacao em:");
        lcd.setCursor(7,1);
        lcd.print(buttonPushCounter);
        }
      }

      if (buttonPushCounter <= 10)
              {

             lcd.setCursor(8,1);

              lcd.print("  ");
         }
         if (buttonPushCounter <= 100)

         {
             lcd.setCursor(9,1);

              lcd.print("  ");
         }
         if (buttonPushCounter <= 1000)

         {
             lcd.setCursor(10,1);

              lcd.print("  ");
         }
        if (buttonPushCounter <= 10000)
         {
             lcd.setCursor(11,1);

              lcd.print("  ");
         }


         if(buttonPushCounter == 0){

           lcd.setCursor(0,0);
           lcd.print("  ");
           lcd.setCursor(1,0);
           lcd.print("  ");
           lcd.setCursor(0,1);
           lcd.print("  ");

           lcd.setCursor(2,0);
         lcd.print("Terroristas ");
         lcd.setCursor(3,1);
         lcd.print("Vencerao");
         delay(1000);

         for(int buttonPushCounter = 0;buttonPushCounter < 10 ; buttonPushCounter++){
           lcd.noDisplay();
         delay(250);
         lcd.display();
         delay(250);
           tone(buzzer,1500);
         delay(500);
       noTone(buzzer);
       delay(500);
         }
         }
       cutwire = digitalRead(6);
       if (cutwire == HIGH) {
           lcd.setCursor(0,0);
           lcd.print("  ");
           lcd.setCursor(1,0);
           lcd.print("  ");
           lcd.setCursor(0,1);
           lcd.print("  ");

           lcd.setCursor(2,0);
         lcd.print("Desativado ");
        }

       cutwire1 = digitalRead(10);
       if (cutwire1 == HIGH) {
           lcd.setCursor(0,0);
           lcd.print("  ");
           lcd.setCursor(1,0);
           lcd.print("  ");
           lcd.setCursor(0,1);
           lcd.print("  ");

           lcd.setCursor(2,0);
         lcd.print("Terroristas ");
         lcd.setCursor(3,1);
         lcd.print("Vencerao");
         for(int buttonPushCounter = 0;buttonPushCounter < 10 ; buttonPushCounter++){
           lcd.noDisplay();
         delay(250);
         lcd.display();
         delay(250);
           tone(buzzer,1500);
         delay(500);
       noTone(buzzer);
       delay(500);
       }
       }
 }