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Arduino - 键盘注销

当ARDUINO UNO的针脚2接地时，此示例使用键盘库使您退出计算机上的用户会话，同时模拟两个或三个键的按键，并在短暂延迟后释放它们。

所需组件

您将需要以下组件-

1×Breadboard
1×Arduino Leonardo,Micro或Due板
1×pushbutton
1×跳线

电路图

遵循电路图，并连接面包板上的组件，如下图所示。

打开计算机上的Arduino IDE软件，使用Arduino语言进行编码将控制您的电路，通过单击"新建"打开一个新的sketch文件。

对于此示例，您需要使用Arduino IDE 1.6.7

注意-您必须在Arduino库文件中包含键盘库。

Arduino代码

/*
   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.
*/

#define OSX 0
#define WINDOWS 1
#define UBUNTU 2

#include "Keyboard.h"

//更改它以匹配您的平台：
int platform=WINDOWS;

void setup() {
   //使引脚 2 成为输入并打开
   //上拉电阻，所以它变高，除非
   
   pinMode(2, INPUT_PULLUP);
   Keyboard.begin();
}

void loop() {
   while (digitalRead(2) == HIGH) {
      //在引脚 2 变低之前什么都不做
      delay(500);
   }
   
   delay(1000);
   
   switch (platform) {
      case OSX:
      Keyboard.press(KEY_LEFT_GUI);
	  
      //Shift-Q 注销：
      Keyboard.press(KEY_LEFT_SHIFT);
      Keyboard.press('Q');
      delay(100);
	  
      //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();
	  
      //输入确认注销：
      Keyboard.write(KEY_RETURN);
      break;
   }
   
   //do nothing:
   while (true);
}

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();
	  
      //输入确认注销：
      Keyboard.write(KEY_RETURN);
      break;
   }
   
//do nothing:
   while (true);
}