To setup, create an Arduino circuit which should activate using digitalWrite(output, high/low). By default, the config uses pin 7, but that is editable in the config. next upload the standard firmata .ino (Available in the Arduino IDE Examples), and upload it to your Arduino. Next, you want to get the port your Arduino is connected to (mine is COM4) and set that in the config. After that, simply set playerName in the config to your name and the plugin should work after a restart! You will know the Arduino has started if the output is active for 5 seconds after enabling.