Arduino Ampel

Schaltplan Ampel

Steckplatine Ampel

int led_rot = 12;

int led_gelb = 11;

int led_gruen = 10;

int cnt = 0;

int state = 1;

void setup() {

  pinMode(led_rot, OUTPUT);

  pinMode(led_gelb, OUTPUT);

  pinMode(led_gruen, OUTPUT);

}

void loop() {

  cnt++;

  if(cnt == 100) {

    cnt = 0;

    statemaschine();

  }

  

  delay(10);

}

void statemaschine() {

    switch(state) {

      case 1:

      digitalWrite(led_rot, HIGH);

      digitalWrite(led_gelb, LOW);

      digitalWrite(led_gruen, LOW);

      state++;

      break;

     

      case 2:

      digitalWrite(led_rot, HIGH);

      digitalWrite(led_gelb, HIGH);

      digitalWrite(led_gruen, LOW);

      state++;

      break;

     

      case 3:

      digitalWrite(led_rot, LOW);

      digitalWrite(led_gelb, LOW);

      digitalWrite(led_gruen, HIGH);

      state++;

      break;

    

      case 4:

      digitalWrite(led_rot, LOW);

      digitalWrite(led_gelb, HIGH);

      digitalWrite(led_gruen, LOW);

      state = 1;

      delay(100);

      break;

    }

}