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);
问下 mouse.begin()函数具体内容是什么
还有 既然上下左右键都是输入,为何又用pinMode来输出高电平。
还有,要输入的话 是不是还要外加电源 |