#include <LiquidCrystal_I2C.h>

#define adresse 0x27
#define reihen 20
#define spalten 2
LiquidCrystal_I2C lcd (adresse, reihen, spalten);

int fred = 13;
int fgreen = 12;
int ared = 11;
int ayel = 10;
int agreen = 9;
int tast = 6;
int x, y, z = 0;
int speak = 8;
int ared1 = 4;
int ayel1 = 3;
int agreen1 = 2;

void setup() 
{
  pinMode(fred, OUTPUT); 
  pinMode(fgreen, OUTPUT); 
  pinMode(ared, OUTPUT); 
  pinMode(ayel, OUTPUT); 
  pinMode(agreen, OUTPUT); 
  pinMode(tast, INPUT_PULLUP);
  pinMode(speak, OUTPUT);
  lcd.init();
  lcd.backlight();
  pinMode(ared1, OUTPUT);
  pinMode(ayel1, OUTPUT);
  pinMode(agreen1, OUTPUT);
}

void loop() 
{
  /*green();
  yello();
  red();
  redyello();*/
  
  z = digitalRead(tast);
  
  if (z == 0 && x == 0)
  {
    yello();
    red();
    redyello();
    x = 1;
  }
  else 
  {
    green();
    if (x == 1)
    {
      delay(10000);
      x = 0;
    }
  }
}

void green()
{
  digitalWrite(ared, LOW);
  digitalWrite(ared1, HIGH);
  digitalWrite(ayel, LOW);
  digitalWrite(ayel1, LOW);
  digitalWrite(agreen, HIGH);
  digitalWrite(agreen1, LOW);
  digitalWrite(fred, HIGH);
  digitalWrite(fgreen, LOW);
  lcd.setCursor(1, 0);
  lcd.print("Auto fahren!");
  lcd.setCursor(1, 1);
  lcd.print("Fuss stehen!");
}

void yello()
{
  digitalWrite(agreen, LOW);
  digitalWrite(agreen1, LOW);
  digitalWrite(ayel, HIGH);
  digitalWrite(ayel1, HIGH);
  digitalWrite(ared, LOW);
  digitalWrite(ared1, HIGH);
  delay(2000);
  lcd.setCursor(1, 0);
  lcd.print("Auto stehen!");
  lcd.setCursor(1, 1);
  lcd.print("Fuss stehen!");
}

void red()
{
  digitalWrite(ayel, LOW);
  digitalWrite(ayel1, LOW);
  digitalWrite(ared, HIGH);
  digitalWrite(ared1, LOW);
  digitalWrite(agreen1, HIGH);
  delay(2000);
  digitalWrite(fred, LOW);
  digitalWrite(fgreen, HIGH);
  tone(8, 260, 10000);
  lcd.setCursor(1, 0);
  lcd.print("Auto stehen!");
  lcd.setCursor(1, 1);
  lcd.print("Fuss gehen!");
  delay(10000);
}

void redyello()
{
  lcd.setCursor(1, 0);
  lcd.print("Auto stehen!");
  lcd.setCursor(1, 1);
  lcd.print("Fuss stehen!");
  digitalWrite(fgreen, LOW);
  digitalWrite(fred, HIGH);
  delay(2000);
  digitalWrite(ayel1, HIGH);
  digitalWrite(ayel, HIGH);
  digitalWrite(ared1, LOW);
  digitalWrite(agreen1, LOW);
  delay(2000);
}