/* Keyboard logout This sketch demonstrates the Keyboard library. When you connect pin 2 to ground, it performs a logout. It uses keyboard combinations to do this, as follows: On Windows, CTRL-ALT-DEL followed by ALT-l On Ubuntu, CTRL-ALT-DEL, and ENTER On OSX, CMD-SHIFT-q To wake: Spacebar. Circuit: * Arduino Leonardo or Micro * wire to connect D2 to ground. created 6 Mar 2012 modified 27 Mar 2012 by Tom Igoe This example is in the public domain http://www.arduino.cc/en/Tutorial/KeyboardLogout */ #define OSX 0 #define WINDOWS 1 #define UBUNTU 2 // change this to match your platform: int platform = OSX; void setup() { // make pin 2 an input and turn on the // pullup resistor so it goes high unless // connected to ground: pinMode(2, INPUT_PULLUP); Keyboard.begin(); } void loop() { while (digitalRead(2) == HIGH) { // do nothing until pin 2 goes low delay(500); } delay(1000); switch (platform) { case OSX: Keyboard.press(KEY_LEFT_GUI); // Shift-Q logs out: Keyboard.press(KEY_LEFT_SHIFT); Keyboard.press('Q'); delay(100); Keyboard.releaseAll(); // enter: Keyboard.write(KEY_RETURN); break; case WINDOWS: // CTRL-ALT-DEL: Keyboard.press(KEY_LEFT_CTRL); Keyboard.press(KEY_LEFT_ALT); Keyboard.press(KEY_DELETE); delay(100); Keyboard.releaseAll(); //ALT-l: delay(2000); Keyboard.press(KEY_LEFT_ALT); Keyboard.press('l'); Keyboard.releaseAll(); break; case UBUNTU: // CTRL-ALT-DEL: Keyboard.press(KEY_LEFT_CTRL); Keyboard.press(KEY_LEFT_ALT); Keyboard.press(KEY_DELETE); delay(1000); Keyboard.releaseAll(); // Enter to confirm logout: Keyboard.write(KEY_RETURN); break; } // do nothing: while (true); }