Arduino 鼠标按钮控制

2023-03-16 09:52:13 作者:admin

本文整理自网络,侵删。

使用鼠标库,你可以使用Arduino Leonardo,Micro或Due来控制计算机的屏幕光标。

这个特殊的例子使用五个按钮来移动屏幕上的光标。四个按钮是方向性的(上,下,左,右),一个是用于鼠标左键单击。来自Arduino的光标移动总是相对的。每次读取输入时,光标的位置都会相对于当前位置进行更新。

只要有一个方向按钮被按下,Arduino就会移动鼠标,在合适的方向上将HIGH输入映射到5的范围。

第五个按钮用于控制来自鼠标的左键单击。当按钮被释放时,计算机将识别事件。

必需的组件

你将需要以下组件:

  • 1 × Breadboard 面包板
  • 1 × Arduino Leonardo, Micro 或 Due板
  • 5 × 10k欧姆电阻
  • 5 × 瞬时按钮

程序

按照电路图连接面包板上的组件,如下图所示。

草图

在计算机上打开Arduino IDE软件。使用Arduino语言进行编码控制你的电路。通过单击“New”打开一个新的草图文件。

对于本例,你需要使用Arduino IDE 1.6.7

Arduino代码

/*   Button Mouse Control   For Leonardo and Due boards only .Controls the mouse from    five pushbuttons on an Arduino Leonardo, Micro or Due.   Hardware:   * 5 pushbuttons attached to D2, D3, D4, D5, D6   The mouse movement is always relative. This sketch reads   four pushbuttons, and uses them to set the movement of the mouse.   WARNING: When you use the Mouse.move() command, the Arduino takes   over your mouse! Make sure you have control before you use the mouse commands.*/#include "Mouse.h"// set pin numbers for the five buttons:const int upButton = 2;const int downButton = 3;const int leftButton = 4;const int rightButton = 5;const int mouseButton = 6;int range = 5; // output range of X or Y movement; affects movement speedint responseDelay = 10; // response delay of the mouse, in msvoid setup() {   // initialize the buttons' inputs:   pinMode(upButton, INPUT);   pinMode(downButton, INPUT);   pinMode(leftButton, INPUT);   pinMode(rightButton, INPUT);   pinMode(mouseButton, INPUT);   // initialize mouse control:   Mouse.begin();}void loop() {   // read the buttons:   int upState = digitalRead(upButton);   int downState = digitalRead(downButton);   int rightState = digitalRead(rightButton);   int leftState = digitalRead(leftButton);   int clickState = digitalRead(mouseButton);   // calculate the movement distance based on the button states:   int xDistance = (leftState - rightState) * range;   int yDistance = (upState - downState) * range;   // if X or Y is non-zero, move:   if ((xDistance != 0) || (yDistance != 0)) {      Mouse.move(xDistance, yDistance, 0);   }   // if the mouse button is pressed:   if (clickState == HIGH) {      // if the mouse is not pressed, press it:      if (!Mouse.isPressed(MOUSE_LEFT)) {         Mouse.press(MOUSE_LEFT);      }   } else {                           // else the mouse button is not pressed:      // if the mouse is pressed, release it:      if (Mouse.isPressed(MOUSE_LEFT)) {         Mouse.release(MOUSE_LEFT);      }   }   // a delay so the mouse does not move too fast:   delay(responseDelay);}

代码说明

使用micro-USB线将电路板连接到计算机。按钮连接到引脚2至6的数字输入。确保使用10k下拉电阻。



标签:Arduino

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