Leonardo 32u4 double blink

// Blink Demo für Billig-Nachbau eines Arduino Micro Pro (32u4) mit USB-C
// In der IDE wird Leonardo als Board-Typ genutzt

#define LED1 17
#define LED2 30


// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pins as an output.
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(LED1, HIGH);  // turn the LED on (HIGH is the voltage level)
  delay(400);                      // wait for a second
  digitalWrite(LED2, HIGH);  // turn the LED on (HIGH is the voltage level)
  delay(400);                      // wait for a second
  digitalWrite(LED1, LOW);   // turn the LED off by making the voltage LOW
  delay(400);                      // wait for a second
  digitalWrite(LED2, LOW);  // turn the LED on (HIGH is the voltage level)
  delay(400);                      // wait for a second
}