#define LED_GREEN  2
#define LED_RED    15
#define SWITCH     12
#define BUTTON     13

void setup() {
  Serial.begin(115200);
  Serial.println("Projekt: Frag mal einen Schalter und einen Taster ab");
  pinMode(LED_RED, OUTPUT);
  pinMode(LED_GREEN, OUTPUT);
  pinMode(BUTTON, INPUT_PULLUP);
  pinMode(SWITCH, INPUT_PULLUP);
}

void loop() {
  digitalWrite(LED_GREEN, digitalRead(SWITCH));
  digitalWrite(LED_RED, !digitalRead(BUTTON));
  delay(100);
}