Question

我正在为Arduino编写一个简单的程序，它将输入2个按钮并输出2个不同功能的模拟键，以便在Clone Hero中使用。

Arduino编辑器（在线和本地版本）吐出

'Keyboard' was not declared in this scope

离线编辑器询问是否包含Keyboard.h ......显然是。

任何想法为什么？

// Keyboard - Version: Latest
#include <Keyboard.h>

//btnWhammy is the button to replace whammy bar function
//btnSP is the button to replace star power activation
//Set Clone Hero to register j for whammy and k for star power

//declaring constant integers for the pins on the Arduino
const int btnWhammy = 2;
const int btnSP = 13;

//Declaring integers for the state of the button press
int btnWhammyState = 0;
int btnSPState = 0;

void setup() {
  //Initialisation of the pins as inputs
  pinMode(btnWhammy, INPUT);
  pinMode(btnSP, INPUT);
}

void loop() {
  //Setting the button states to the read of the digital pin (LOW is off, HIGH is on)
  btnWhammyState = digitalRead(btnWhammy);
  btnSPState = digitalRead(btnSP);
  //If the whammy button is pressed, send 'j' to the keyboard, wait 100ms then release all keys
  if (btnWhammyState == HIGH) {
    Keyboard.press('j');
    delay(100);
    Keyboard.releaseAll();
  }
  //If the Star Power button is pressed, send 'k' to the keyboard, wait 100ms then release all keys
  if (btnSPState == HIGH) {
    Keyboard.press('k');
    delay(100);
    Keyboard.releaseAll();
  }
}

Answer 1

这是一个经典的错误 - 你可能正在为一个非莱昂纳多董事会编译，就像Uno一样。不包括Keyboard.h库，因为它不适用于您正在编译的电路板。

我拿了你的代码并为莱昂纳多编译 - 没有问题。对于Uno，我得到了和你一样的错误......

Answer 2

在此范围内未声明键盘键，我发现了此问题的一个非常简单且有效的窍门，只需转到您的主文件，即可在其中声明您面临的所有其他键而未声明

#include <DigiKeyboard.h>
#define KEY_UP_ARROW   0x52
#define KEY_DOWN_ARROW   0x51
#define KEY_LEFT_ARROW   0x50
#define KEY_RIGHT_ARROW   0x4F
#define KEY_TAB 0x2B

'键盘'未在此范围内声明 - Arduino编码

2 个答案: