使用鼠标库,您可以使用Arduino Leonardo,Micro或Due来控制计算机的屏幕光标。
此特定示例使用五个按钮来移动屏幕上的光标。 四个按钮是定向的(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,相对于其当前位置更新光标的位置。
每当按下一个方向按钮时,Arduino将移动鼠标,将HIGH输入映射到适当方向的范围5。
第五按钮用于控制来自鼠标的左击。 当按钮被释放时,计算机将识别事件。
必需的组件
您将需要以下组件 -
1 × Breadboard 面包板
1 × Arduino Leonardo, Micro 或 Due board
5 × 10k欧姆电阻
5 × momentary pushbuttons 瞬时按钮
程序
按照电路图并挂接面包板上的组件,如下图所示。
草图
在计算机上打开Arduino IDE软件。 在Arduino语言编码将控制你的电路。 通过单击新建打开一个新的草图文件。
对于本例,您需要使用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 speed int responseDelay = 10; // response delay of the mouse, in ms void 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电缆将电路板连接到计算机。 这些按钮连接到引脚2至6的数字输入。确保使用10k下拉电阻。