//Michael Lackner
//06.05.2025
//Eieruhr Teil 3



#include <Wire.h>
#include <LiquidCrystal_I2C.h>
 
LiquidCrystal_I2C lcd(0x27, 16, 2);
 
const int pot = A0;
const int btn = 4;
const int led = 12;
const int buz = 7;
 
int t = 0;
bool running = false;
 
void setup() {
  pinMode(pot, INPUT);
  pinMode(btn, INPUT);
  pinMode(led, OUTPUT);
  pinMode(buz, OUTPUT);
  Serial.begin(9600);
  lcd.init();
  lcd.backlight();
}
 
void loop() {
  int b = digitalRead(btn);
  if (!running) {
    if (b == LOW) {
      t = map(analogRead(pot), 0, 1023, 0, 900);
      int m = t / 60;
      int s = t % 60;
      Serial.print("Kochzeit: ");
      lcd.setCursor(0, 0);
      lcd.print("Kochzeit:");
      if (m < 10) Serial.print("0");
      Serial.print(m);
      Serial.print(":");
      if (s < 10) Serial.print("0");
      Serial.println(s);
      lcd.print(m);
      lcd.print(":");
      lcd.print(s);
      delay(200);
    }
    if (b == HIGH) {
      running = true;
      Serial.println("Countdown startet!");
    }
  } else {
    if (t > 0) {
      delay(1000);
      t--;
      int m = t / 60;
      int s = t % 60;
      Serial.print("Kochzeit: ");
      lcd.setCursor(0, 0);
      lcd.print("Kochzeit:");
      if (m < 10) Serial.print("0");
      Serial.print(m);
      Serial.print(":");
      if (s < 10) {
        Serial.print("0");
      }
      Serial.println(s);
      lcd.setCursor(0, 1);
      lcd.print(m);
      lcd.print(":");
      lcd.print(s);
 
    } else {
      for (int i = 0; i < 5; i++) {
        digitalWrite(led, HIGH);
        delay(200);
        digitalWrite(led, LOW);
        delay(200);
      }
      tone(buz, 1000, 500);
      delay(1000);
      Serial.println("Fertig! Dein Ei ist fertig!");
 
 
 
      while (true) { }
    }
  }
}