Prvni ulozeni z chegewara githubu

libraries/USB/examples/Keyboard/KeyboardLogout/KeyboardLogout.ino

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+/*
+  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
+*/
+#if ARDUINO_USB_MODE
+#warning This sketch should be used when USB is in OTG mode
+void setup(){}
+void loop(){}
+#else
+
+#define OSX 0
+#define WINDOWS 1
+#define UBUNTU 2
+
+#include "USB.h"
+#include "USBHIDKeyboard.h"
+USBHIDKeyboard Keyboard;
+
+// change this to match your platform:
+int platform = OSX;
+
+void setup() {
+  // make pin 0 an input and turn on the pull-up resistor so it goes high unless
+  // connected to ground:
+  pinMode(0, INPUT_PULLUP);
+  Keyboard.begin();
+  USB.begin();
+}
+
+void loop() {
+  while (digitalRead(0) == 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) delay(1000);
+}
+#endif /* ARDUINO_USB_MODE */