#define CAR_RED 5
#define CAR_YELLOW 6
#define CAR_GREEN 7

#define PED_RED 3
#define PED_GREEN 4

#define BLINK 8

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode ( CAR_RED, OUTPUT);
  pinMode ( CAR_YELLOW, OUTPUT);
  pinMode ( CAR_GREEN, OUTPUT);
  pinMode ( PED_RED, OUTPUT);
  pinMode ( PED_GREEN, OUTPUT);
  pinMode ( BLINK, OUTPUT);
}

void car_green_ped_red() {
  // KFZ grün, Fussgaenger rot
  digitalWrite ( CAR_RED, LOW );
  digitalWrite ( CAR_YELLOW, LOW );
  digitalWrite ( CAR_GREEN, HIGH );
  digitalWrite ( PED_RED, HIGH );
  digitalWrite ( PED_GREEN, LOW );
}

void car_yellow_ped_red() {
    // KFZ gelb, Fussgaenger rot
    digitalWrite ( CAR_RED, LOW );
    digitalWrite ( CAR_YELLOW, HIGH );
    digitalWrite ( CAR_GREEN, LOW );
    digitalWrite ( PED_RED, HIGH );
    digitalWrite ( PED_GREEN, LOW );
}

void car_red_ped_red() {
    // KFZ rot, Fussgaenger rot
    digitalWrite ( CAR_RED, HIGH );
    digitalWrite ( CAR_YELLOW, LOW );
    digitalWrite ( CAR_GREEN, LOW );
    digitalWrite ( PED_RED, HIGH );
    digitalWrite ( PED_GREEN, LOW );
}

void car_red_ped_green () {
    // KFZ rot, Fussgaenger gruen
    digitalWrite ( CAR_RED, HIGH );
    digitalWrite ( CAR_YELLOW, LOW );
    digitalWrite ( CAR_GREEN, LOW );
    digitalWrite ( PED_RED, LOW );
    digitalWrite ( PED_GREEN, HIGH );

}

void car_red_yellow_ped_red () {
      // KFZ rot-gelb, Fussgaenger rot
    digitalWrite ( CAR_RED, HIGH );
    digitalWrite ( CAR_YELLOW, HIGH );
    digitalWrite ( CAR_GREEN, LOW );
    digitalWrite ( PED_RED, HIGH );
    digitalWrite ( PED_GREEN, LOW );
}

void loop () {
  car_green_ped_red();
  delay ( 3000 );
  car_yellow_ped_red();
  delay ( 1000 );
  car_red_ped_red();
  delay ( 2000 );
  car_red_ped_green();
  digitalWrite ( BLINK, HIGH );
  delay ( 300 );
  digitalWrite ( BLINK, LOW );
  delay ( 300 );
  digitalWrite ( BLINK, HIGH );
  delay ( 300 );
  digitalWrite ( BLINK, LOW );
  delay ( 300 );
  digitalWrite ( BLINK, HIGH );
  delay ( 300 );
  digitalWrite ( BLINK, LOW );
  delay ( 300 );
  digitalWrite ( BLINK, HIGH );
  delay ( 300 );
  digitalWrite ( BLINK, LOW );
  delay ( 300 );
  car_red_ped_red();
  digitalWrite ( BLINK, HIGH );
  delay ( 300 );
  digitalWrite ( BLINK, LOW );
  delay ( 300 );
  digitalWrite ( BLINK, HIGH );
  delay ( 300 );
  digitalWrite ( BLINK, LOW );
  delay ( 300 );
  delay ( 2000 );
  car_red_yellow_ped_red ();
  delay ( 1000 );
}