//Ampelschaltung
int ampelRotPin   =  12;
int ampelGelbPin  =  11;
int ampelGruenPin =  10;
//Fußgängerschaltung
int fgRotPin      =   9;
int fgGruenPin    =   8;

int fgButtonPin   =   2;


void setup() {
   pinMode(ampelRotPin,     OUTPUT);
   pinMode(ampelGelbPin,    OUTPUT);
   pinMode(ampelGruenPin,   OUTPUT);

   pinMode(fgRotPin,        OUTPUT);
   pinMode(fgGruenPin,      OUTPUT);
   pinMode(fgButtonPin,      INPUT);
}

void loop() {
//Gruen
   digitalWrite(ampelRotPin,    LOW);
   digitalWrite(ampelGelbPin,   LOW);
   digitalWrite(ampelGruenPin, HIGH);
   digitalWrite(fgRotPin,      HIGH);
   digitalWrite(fgGruenPin,     LOW);
   delay(5000);

   if (digitalRead(fgButtonPin) == LOW) {
//Gelb
   digitalWrite(ampelRotPin,    LOW);
   digitalWrite(ampelGelbPin,  HIGH);
   digitalWrite(ampelGruenPin,  LOW);
   digitalWrite(fgRotPin,      HIGH);
   digitalWrite(fgGruenPin,     LOW);
   delay(1000);
//rot
   digitalWrite(ampelRotPin,   HIGH);
   digitalWrite(ampelGelbPin,   LOW);
   digitalWrite(ampelGruenPin,  LOW);
   digitalWrite(fgRotPin,       LOW);
   digitalWrite(fgGruenPin,    HIGH);
   delay(5000);
//rot-gelb
   digitalWrite(ampelRotPin,   HIGH);
   digitalWrite(ampelGelbPin,  HIGH);
   digitalWrite(ampelGruenPin,  LOW);
   digitalWrite(fgRotPin,      HIGH);
   digitalWrite(fgGruenPin,     LOW);
   delay(1000);

}
}