//LED Belegung 
int green = 12;
int yellow = 11;
int red = 10; 

//Taster belegung 
int button_green = 9;
int button_yellow = 8;
int button_red = 7;

int button_greenState = 0;
int button_yellowState = 0;
int button_redState = 0;


void setup() {
  // put your setup code here, to run once:
pinMode(green, OUTPUT);
pinMode(yellow, OUTPUT);
pinMode(red, OUTPUT);

pinMode(button_green, INPUT);
pinMode(button_yellow, INPUT);
pinMode(button_red, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
button_greenState = digitalRead(button_green);
button_yellowState = digitalRead(button_yellow);
button_redState = digitalRead(button_red);

if (button_greenState == 1){
  digitalWrite(green, HIGH);
  delay(1500);
}else if (button_greenState == 0){
  digitalWrite(green, LOW);
  }

if (button_yellowState == 1){
  digitalWrite(yellow, HIGH);
  delay(1500);
}else if (button_yellowState ==0){
  digitalWrite(yellow, LOW);
  }

if (button_redState == 1){
  digitalWrite(red, HIGH);
  delay(1500);
}else if (button_redState ==0){
  digitalWrite(red, LOW);
  }
}