Beginner: Try to use Sparkfun Pro Micro as a keyboard

Development Tools IDE 1.x
1

Hi guys,

today I get my first Sparkfun Pro Micro and I' starting to use it as a keyboard. First I uploaded the sketch:

int buttonPin = 9;  // Set a button to any pin

void setup()
{
  pinMode(buttonPin, INPUT);  // Set the button as an input
  digitalWrite(buttonPin, HIGH);  // Pull the button high
}

void loop()
{
  if (digitalRead(buttonPin) == 0)  // if the button goes low
  {
    Keyboard.write('z');  // send a 'z' to the computer via Keyboard HID
    delay(1000);  // delay so there aren't a kajillion z's
  }
}

The upload works fine, and I opened a text editor. If I close Pin 9 and ground nothing happens. I have no idea, about my fault.

2

Now it works. I programmed the board with the Pro Micro Protokoll for the 3,3V version. I have a 5V version