#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 10, 9, 3, 2);

const int  buttonPin = 5;  // + Button  
const int  buttonPin2 = 6; // - Button
const int  buttonPin3 = 4; // Shot Button
const int  buttonPin4 = 8; // Automatik 1 Button
const int  buttonPin5 = 0; // Automatik 2 Button
const int  buttonPin6 = 1; // Automatik 3 Button
// Light Button = Analog 0

int buttonPushCounter = 0;   
int buttonState = 0;         
int buttonState2 = 0;
int buttonState3 = 0;
int buttonState4 = 0;
int buttonState5 = 0;
int buttonState6 = 0;
int lightbuttonstate = 0;
int lastButtonState = 0;     
int lastButtonState2 = 0;
int delaytime = 2; // Zeit Spiegelvorauslösung

void setup() {
  pinMode(buttonPin, INPUT);
  pinMode(buttonPin2, INPUT);
  pinMode(buttonPin3, INPUT);
  pinMode(buttonPin4, INPUT);
  pinMode(buttonPin5, INPUT);
  pinMode(buttonPin6, INPUT);
  pinMode(7, OUTPUT);   // LCD Beleuchtung GND
  pinMode(13, OUTPUT);  // Shutter zu Optokopler , oder TestLED

  digitalWrite(7, LOW); // Led Beleuchtung einschalten
  lcd.begin(16, 2);
  lcd.print("Starting...  :)");
  delay(1000);
  lcd.clear();
  lcd.setCursor(5, 0);lcd.print("Bereit");
  lcd.setCursor(0, 1); lcd.print("Druecke +/-/A1-3");
  delay (3000); 
}


void loop() {
  buttonState = digitalRead(buttonPin);
  buttonState2 = digitalRead(buttonPin2);
  buttonState3 = digitalRead(buttonPin3);
  buttonState4 = digitalRead(buttonPin4);
  buttonState5 = digitalRead(buttonPin5);
  buttonState6 = digitalRead(buttonPin6);
  lightbuttonstate = analogRead(A0);

// Light Button
  if (lightbuttonstate > 0) {
      digitalWrite(7, LOW);
  }
  else {
      digitalWrite(7, HIGH);
  }
  
  
// + Button
  if (buttonState != lastButtonState) {
    if (buttonState == HIGH) {
      buttonPushCounter++;
      lcd.setCursor(0, 0);
      lcd.clear();
      lcd.print(buttonPushCounter);
      lcd.print(" Sekunden");
      lcd.setCursor(0, 1);
 lcd.print("Einstellung + -");
     }
  }
// - Button
 if (buttonState2 != lastButtonState2) {
if (buttonState2 == HIGH) {
  if (buttonPushCounter < 1) {
  buttonPushCounter = 1;
  }
  lcd.clear();
  buttonPushCounter--;
  lcd.setCursor(0, 0);
  lcd.print(buttonPushCounter);
  lcd.print(" Sekunden");
  lcd.setCursor(0, 1);
  lcd.print("Einstellung + -");
}
 }

// Return Button
if (buttonState3 == HIGH) {
  digitalWrite(7, LOW);
  lcd.clear(); lcd.setCursor(0, 0); lcd.print("Belichtung aktiv!");
  digitalWrite(13, HIGH);   
  for (int i=buttonPushCounter+delaytime; i>0; i--) { 
   lcd.setCursor(0, 1); lcd.print("noch: "); lcd.print(i); lcd.print(" Sek.");
   delay(1000);
  }
  digitalWrite(13, LOW);
  lcd.clear();
  buttonPushCounter = 0;
  lcd.setCursor(3, 0); lcd.print("Belichtung");
  lcd.setCursor(5, 1); lcd.print("Beendet");
  delay(2000);
  lcd.clear();
  lcd.setCursor(5, 0);lcd.print("Bereit");
  lcd.setCursor(0, 1); lcd.print("Druecke +/-/A1-3");
}




//Belichtungsprogramm(1) 6 Bilder, 10,15,20,30,45,60Sekunden
if (buttonState4 == HIGH) {
  digitalWrite(7, LOW);
  //Mittelung das Automatikmodus gewählt wurde.
  lcd.setCursor(0, 0); lcd.print("AutomatikModus:1");
  for (int i=5; i>0; i--) { lcd.setCursor(0, 1); lcd.print("Start in: "); lcd.print(i); lcd.print(" Sek."); delay(1000); }
  /////////////////////////////////////////////////
  // erste Belichtung  10 Sekunden
  buttonPushCounter = 10; 
  digitalWrite(13, HIGH); //Auslösen
  for (int i=buttonPushCounter+delaytime; i>0; i--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 1/6 "); 
    lcd.setCursor(2, 1); lcd.print("noch: "); lcd.print(i); lcd.print(" Sek.");
    delay(1000);
    }
  digitalWrite(13, LOW); //Auslösung beenden
  // 15 Sekunden warten wegen Kamera Rechenzeit
  for (int wait=15; wait>0; wait--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 1/6 "); 
    lcd.setCursor(0, 1); lcd.print("Berechnen: ");
    lcd.setCursor(11, 1); lcd.print(wait);
    lcd.setCursor(13, 1); lcd.print("Sek.");
    delay(1000);
  }
 
  /////////////////////////////////////////////////
  // zweite Belichtung  15 Sekunden
  buttonPushCounter = 15; 
  digitalWrite(13, HIGH); //Auslösen
  for (int i=buttonPushCounter+delaytime; i>0; i--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 2/6 "); 
    lcd.setCursor(2, 1); lcd.print("noch: "); lcd.print(i); lcd.print(" Sek.");
    delay(1000);
    }
  digitalWrite(13, LOW); //Auslösung beenden
  // 25 Sekunden warten wegen Kamera Rechenzeit
  for (int wait=25; wait>0; wait--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 2/6 "); 
    lcd.setCursor(0, 1); lcd.print("Berechnen: ");
    lcd.setCursor(11, 1); lcd.print(wait);
    lcd.setCursor(13, 1); lcd.print("Sek.");
    delay(1000);
  }

  /////////////////////////////////////////////////
  // dritte Belichtung  20 Sekunden
  buttonPushCounter = 20; 
  digitalWrite(13, HIGH); //Auslösen
  for (int i=buttonPushCounter+delaytime; i>0; i--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 3/6 "); 
    lcd.setCursor(2, 1); lcd.print("noch: "); lcd.print(i); lcd.print(" Sek.");
    delay(1000);
    }
  digitalWrite(13, LOW); //Auslösung beenden
  // 30 Sekunden warten wegen Kamera Rechenzeit
  for (int wait=30; wait>0; wait--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 3/6 "); 
    lcd.setCursor(0, 1); lcd.print("Berechnen: ");
    lcd.setCursor(11, 1); lcd.print(wait);
    lcd.setCursor(13, 1); lcd.print("Sek.");
    delay(1000);
  }
  
  /////////////////////////////////////////////////
  // vierte Belichtung  30 Sekunden
  buttonPushCounter = 30; 
  digitalWrite(13, HIGH); //Auslösen
  for (int i=buttonPushCounter+delaytime; i>0; i--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 4/6 "); 
    lcd.setCursor(2, 1); lcd.print("noch: "); lcd.print(i); lcd.print(" Sek.");
    delay(1000);
    }
  digitalWrite(13, LOW); //Auslösung beenden
  // 45 Sekunden warten wegen Kamera Rechenzeit
  for (int wait=45; wait>0; wait--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 4/6 "); 
    lcd.setCursor(0, 1); lcd.print("Berechnen: ");
    lcd.setCursor(11, 1); lcd.print(wait);
    lcd.setCursor(13, 1); lcd.print("Sek.");
    delay(1000);
  }

  /////////////////////////////////////////////////
  // fünfte Belichtung  45 Sekunden
  buttonPushCounter = 45; 
  digitalWrite(13, HIGH); //Auslösen
  for (int i=buttonPushCounter+delaytime; i>0; i--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 5/6 "); 
    lcd.setCursor(2, 1); lcd.print("noch: "); lcd.print(i); lcd.print(" Sek.");
    delay(1000);
    }
  digitalWrite(13, LOW); //Auslösung beenden
  // 60 Sekunden warten wegen Kamera Rechenzeit
  for (int wait=60; wait>0; wait--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 5/6 "); 
    lcd.setCursor(0, 1); lcd.print("Berechnen: ");
    lcd.setCursor(11, 1); lcd.print(wait);
    lcd.setCursor(13, 1); lcd.print("Sek.");
    delay(1000);
  }

  /////////////////////////////////////////////////
  // sechste Belichtung  60 Sekunden
  buttonPushCounter = 60; 
  digitalWrite(13, HIGH); //Auslösen
  for (int i=buttonPushCounter+delaytime; i>0; i--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 6/6 "); 
    lcd.setCursor(2, 1); lcd.print("noch: "); lcd.print(i); lcd.print(" Sek.");
    delay(1000);
    }
  digitalWrite(13, LOW); //Auslösung beenden
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 6/6 "); 
    lcd.setCursor(4, 1); lcd.print("Beendet");
    delay(5000);
    buttonPushCounter = 0;
    lcd.clear();
    lcd.setCursor(5, 0);lcd.print("Bereit");
    lcd.setCursor(0, 1); lcd.print("Druecke +/-/A1-3");
  }
 
  
  //////////////////////////////////////////////////////////////////////////////////////////////////////////////
  //Belichtungsprogramm(2) 5 Bilder, 1,2,4,8,16Sekunden
if (buttonState5 == HIGH) {
  digitalWrite(7, LOW);
  //Mittelung das Automatikmodus gewählt wurde.
  lcd.setCursor(0, 0); lcd.print("AutomatikModus:2");
  for (int i=5; i>0; i--) { lcd.setCursor(0, 1); lcd.print("Start in: "); lcd.print(i); lcd.print(" Sek."); delay(1000); }
  /////////////////////////////////////////////////
  // erste Belichtung  1 Sekunde
  buttonPushCounter = 1; 
  digitalWrite(13, HIGH); //Auslösen
  for (int i=buttonPushCounter+delaytime; i>0; i--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 1/5 "); 
    lcd.setCursor(2, 1); lcd.print("noch: "); lcd.print(i); lcd.print(" Sek.");
    delay(1000);
    }
  digitalWrite(13, LOW); //Auslösung beenden
  // 2 Sekunden warten wegen Kamera Rechenzeit
  for (int wait=2; wait>0; wait--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 1/5 "); 
    lcd.setCursor(0, 1); lcd.print("Berechnen: ");
    lcd.setCursor(11, 1); lcd.print(wait);
    lcd.setCursor(13, 1); lcd.print("Sek.");
    delay(1000);
  }
 
  /////////////////////////////////////////////////
  // zweite Belichtung  2 Sekunden
  buttonPushCounter = 2; 
  digitalWrite(13, HIGH); //Auslösen
  for (int i=buttonPushCounter+delaytime; i>0; i--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 2/5 "); 
    lcd.setCursor(2, 1); lcd.print("noch: "); lcd.print(i); lcd.print(" Sek.");
    delay(1000);
    }
  digitalWrite(13, LOW); //Auslösung beenden
  // 4 Sekunden warten wegen Kamera Rechenzeit
  for (int wait=4; wait>0; wait--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 2/5 "); 
    lcd.setCursor(0, 1); lcd.print("Berechnen: ");
    lcd.setCursor(11, 1); lcd.print(wait);
    lcd.setCursor(13, 1); lcd.print("Sek.");
    delay(1000);
  }

  /////////////////////////////////////////////////
  // dritte Belichtung  4 Sekunden
  buttonPushCounter = 4; 
  digitalWrite(13, HIGH); //Auslösen
  for (int i=buttonPushCounter+delaytime; i>0; i--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 3/5 "); 
    lcd.setCursor(2, 1); lcd.print("noch: "); lcd.print(i); lcd.print(" Sek.");
    delay(1000);
    }
  digitalWrite(13, LOW); //Auslösung beenden
  // 8 Sekunden warten wegen Kamera Rechenzeit
  for (int wait=8; wait>0; wait--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 3/5 "); 
    lcd.setCursor(0, 1); lcd.print("Berechnen: ");
    lcd.setCursor(11, 1); lcd.print(wait);
    lcd.setCursor(13, 1); lcd.print("Sek.");
    delay(1000);
  }
  
  /////////////////////////////////////////////////
  // vierte Belichtung  8 Sekunden
  buttonPushCounter = 8; 
  digitalWrite(13, HIGH); //Auslösen
  for (int i=buttonPushCounter+delaytime; i>0; i--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 4/5 "); 
    lcd.setCursor(2, 1); lcd.print("noch: "); lcd.print(i); lcd.print(" Sek.");
    delay(1000);
    }
  digitalWrite(13, LOW); //Auslösung beenden
  // 16 Sekunden warten wegen Kamera Rechenzeit
  for (int wait=16; wait>0; wait--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 4/5 "); 
    lcd.setCursor(0, 1); lcd.print("Berechnen: ");
    lcd.setCursor(11, 1); lcd.print(wait);
    lcd.setCursor(13, 1); lcd.print("Sek.");
    delay(1000);
  }

  /////////////////////////////////////////////////
  // fünfte Belichtung  16 Sekunden
  buttonPushCounter = 16; 
  digitalWrite(13, HIGH); //Auslösen
  for (int i=buttonPushCounter+delaytime; i>0; i--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 5/5 "); 
    lcd.setCursor(2, 1); lcd.print("noch: "); lcd.print(i); lcd.print(" Sek.");
    delay(1000);
    }
  digitalWrite(13, LOW); //Auslösung beenden
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 5/5 "); 
    lcd.setCursor(4, 1); lcd.print("Beendet");
    delay(5000);
    buttonPushCounter = 0;
    lcd.clear();
    lcd.setCursor(5, 0);lcd.print("Bereit");
    lcd.setCursor(0, 1); lcd.print("Druecke +/-/A1-3");
  }
  
 
  //////////////////////////////////////////////////////////////////////////////////////////////////////////////
  //Belichtungsprogramm(3) 5 Bilder, 60,90,120,180,240 Sekunden
if (buttonState6 == HIGH) {
  digitalWrite(7, LOW);
  //Mittelung das Automatikmodus gewählt wurde.
  lcd.setCursor(0, 0); lcd.print("AutomatikModus:3");
  for (int i=5; i>0; i--) { lcd.setCursor(0, 1); lcd.print("Start in: "); lcd.print(i); lcd.print(" Sek."); delay(1000); }
  /////////////////////////////////////////////////
  // erste Belichtung  60 Sekunden
  buttonPushCounter = 60; 
  digitalWrite(13, HIGH); //Auslösen
  for (int i=buttonPushCounter+delaytime; i>0; i--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 1/5 "); 
    lcd.setCursor(2, 1); lcd.print("noch: "); lcd.print(i); lcd.print(" Sek.");
    delay(1000);
    }
  digitalWrite(13, LOW); //Auslösung beenden
  // 80 Sekunden warten wegen Kamera Rechenzeit
  for (int wait=80; wait>0; wait--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 1/5 "); 
    lcd.setCursor(0, 1); lcd.print("Berechnen: ");
    lcd.setCursor(11, 1); lcd.print(wait);
    lcd.setCursor(13, 1); lcd.print("Sek.");
    delay(1000);
  }
 
  /////////////////////////////////////////////////
  // zweite Belichtung  90 Sekunden
  buttonPushCounter = 90; 
  digitalWrite(13, HIGH); //Auslösen
  for (int i=buttonPushCounter+delaytime; i>0; i--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 2/5 "); 
    lcd.setCursor(2, 1); lcd.print("noch: "); lcd.print(i); lcd.print(" Sek.");
    delay(1000);
    }
  digitalWrite(13, LOW); //Auslösung beenden
  // 110 Sekunden warten wegen Kamera Rechenzeit
  for (int wait=110; wait>0; wait--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 2/5 "); 
    lcd.setCursor(0, 1); lcd.print("Berechnen:");
    lcd.setCursor(10, 1); lcd.print(wait);
    lcd.setCursor(13, 1); lcd.print("Sek.");
    delay(1000);
  }

  /////////////////////////////////////////////////
  // dritte Belichtung  120 Sekunden
  buttonPushCounter = 120; 
  digitalWrite(13, HIGH); //Auslösen
  for (int i=buttonPushCounter+delaytime; i>0; i--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 3/5 "); 
    lcd.setCursor(2, 1); lcd.print("noch: "); lcd.print(i); lcd.print(" Sek.");
    delay(1000);
    }
  digitalWrite(13, LOW); //Auslösung beenden
  // 140 Sekunden warten wegen Kamera Rechenzeit
  for (int wait=140; wait>0; wait--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 3/5 "); 
    lcd.setCursor(0, 1); lcd.print("Berechnen:");
    lcd.setCursor(10, 1); lcd.print(wait);
    lcd.setCursor(13, 1); lcd.print("Sek.");
    delay(1000);
  }
  
  /////////////////////////////////////////////////
  // vierte Belichtung  180 Sekunden
  buttonPushCounter = 180; 
  digitalWrite(13, HIGH); //Auslösen
  for (int i=buttonPushCounter+delaytime; i>0; i--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 4/5 "); 
    lcd.setCursor(2, 1); lcd.print("noch: "); lcd.print(i); lcd.print(" Sek.");
    delay(1000);
    }
  digitalWrite(13, LOW); //Auslösung beenden
  // 140 Sekunden warten wegen Kamera Rechenzeit
  for (int wait=210; wait>0; wait--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 4/5 "); 
    lcd.setCursor(0, 1); lcd.print("Berechnen:");
    lcd.setCursor(10, 1); lcd.print(wait);
    lcd.setCursor(13, 1); lcd.print("Sek.");
    delay(1000);
  }
  
  /////////////////////////////////////////////////
  // fünfte Belichtung  240 Sekunden
  buttonPushCounter = 240; 
  digitalWrite(13, HIGH); //Auslösen
  for (int i=buttonPushCounter+delaytime; i>0; i--) { 
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 5/5 "); 
    lcd.setCursor(2, 1); lcd.print("noch: "); lcd.print(i); lcd.print(" Sek.");
    delay(1000);
    }
  digitalWrite(13, LOW); //Auslösung beenden
    lcd.clear(); lcd.setCursor(0, 0); lcd.print(" Belichtung 5/5 "); 
    lcd.setCursor(4, 1); lcd.print("Beendet");
    delay(5000);
    buttonPushCounter = 0;
    lcd.clear();
    lcd.setCursor(5, 0);lcd.print("Bereit");
    lcd.setCursor(0, 1); lcd.print("Druecke +/-/A1-3");
  } 
  
lastButtonState = buttonState;
lastButtonState2 = buttonState2;
 
}