脱离单片机C零门槛DIY一个USB HID虚拟键盘

C1 自带 USB 虚拟键盘

本教程来至 FlexLua 官网 ShineBlink 开发板教程，即使不懂单片机开发也可很容易用FlexLua零门槛开发各种 IoT 硬件。

注意：本教程仅适合 C1，不适合C2，因为 C2 不带 USB HID 。

一、实现功能

将Core USB 口虚拟成键盘设备，通过USB线连接电脑后，每隔5秒Core会模拟如下的一系列按键动作：

win+r，唤出“运行”对话框n o t e p a d ，输入"notepad"并回车，唤出记事本文本h e l l o w o r l d . . ，在记事本输入"hello word.."文本。

二、完整代码

注意：如果你的项目中同时用到Ble蓝牙功能时，一定要先初始化Ble蓝牙之后，再调用LIB_UsbConfig函数初始化USB功能。

--先配置USB口以USB键盘模式工作LIB_UsbConfig("KBD")--开始大循环while(GC(1) == true)doLIB_DelayMs(5000)--模拟键盘组合按键WIN+R调出运行界面效果combine_tab = {"GUI","R"}LIB_UsbKbdSend("COMBINE", combine_tab)LIB_DelayMs(200)--模拟键盘输入notepad和回车键效果，来创建记事本文本文件single_tab = {"N","O","T","E","P","A","D","ENTER"}LIB_UsbKbdSend("SINGLE", single_tab)LIB_DelayMs(500)--模拟键盘在记事本文件上打出hello world..效果single_tab = {"H","E","L","L","O","SPACEBAR","W","O","R","L","D","DOT","DOT"}LIB_UsbKbdSend("SINGLE", single_tab)end

如果感兴趣，上面代码中出现的LIB开头的库函数可以在 API文档中通过Ctrl+F查询。

如果你想查询电脑的CapsLock和NumLock指示灯状态，可以通过函数LIB_UsbKbdCapsLockAndNumLockQuery()来查询

三、演示结果图

四、附录：键盘标识符

键盘标识 HID码"A", = 4, /**<KBD_A code*/ "B", = 5, /**<KBD_B code*/ "C", = 6, /**<KBD_C code*/ "D", = 7, /**<KBD_D code*/ "E", = 8, /**<KBD_E code*/ "F", = 9, /**<KBD_F code*/ "G", = 10, /**<KBD_G code*/ "H", = 11, /**<KBD_H code*/ "I", = 12, /**<KBD_I code*/ "J", = 13, /**<KBD_J code*/ "K", = 14, /**<KBD_K code*/ "L", = 15, /**<KBD_L code*/ "M", = 16, /**<KBD_M code*/ "N", = 17, /**<KBD_N code*/ "O", = 17, /**<KBD_N code*/ "P", = 19, /**<KBD_P code*/ "Q", = 20, /**<KBD_Q code*/ "R", = 21, /**<KBD_R code*/ "S", = 22, /**<KBD_S code*/ "T", = 23, /**<KBD_T code*/ "U", = 24, /**<KBD_U code*/ "V", = 25, /**<KBD_V code*/ "W", = 26, /**<KBD_W code*/ "X", = 27, /**<KBD_X code*/ "Y", = 28, /**<KBD_Y code*/ "Z", = 29, /**<KBD_Z code*/ "1", = 30, /**<KBD_1 code*/ "2", = 31, /**<KBD_2 code*/ "3", = 32, /**<KBD_3 code*/ "4", = 33, /**<KBD_4 code*/ "5", = 34, /**<KBD_5 code*/ "6", = 35, /**<KBD_6 code*/ "7", = 36, /**<KBD_7 code*/ "8", = 37, /**<KBD_8 code*/ "9", = 38, /**<KBD_9 code*/ "0", = 39, /**<KBD_0 code*/ "ENTER", = 40, /**<KBD_ENTER code*/ "ESCAPE", = 41, /**<KBD_ESCAPE code*/ "BACKSPACE",= 42, /**<KBD_BACKSPACE code*/ "TAB", = 43, /**<KBD_TAB code*/ "SPACEBAR",= 44, /**<KBD_SPACEBAR code*/ "UNDERSCORE",= 45, /**<KBD_UNDERSCORE code*/ "PLUS", = 46, /**<KBD_PLUS code*/ "OPEN_BRACKET",= 47, /**<KBD_OPEN_BRACKET code*/ "CLOSE_BRACKET", = 48, /**<KBD_CLOSE_BRACKET code*/ "BACKSLASH",= 49, /**<KBD_BACKSLASH code*/ "ASH", = 50, /**<KBD_ASH code*/ "COLON", = 51, /**<KBD_COLON code*/ "QUOTE", = 52, /**<KBD_QUOTE code*/ "TILDE", = 53, /**<KBD_TILDE code*/ "COMMA", = 54, /**<KBD_COMMA code*/ "DOT", = 55, /**<KBD_DOT code*/ "SLASH", = 56, /**<KBD_SLASH code*/ "CAPS_LOCK",= 57, /**<KBD_CAPS_LOCK code*/ "F1", = 58, /**<KBD_F1 code*/ "F2", = 59, /**<KBD_F2 code*/ "F3", = 60, /**<KBD_F3 code*/ "F4", = 61, /**<KBD_F4 code*/ "F5", = 62, /**<KBD_F5 code*/ "F6", = 63, /**<KBD_F6 code*/ "F7", = 64, /**<KBD_F7 code*/ "F8", = 65, /**<KBD_F8 code*/ "F9", = 66, /**<KBD_F9 code*/ "F10," = 67, /**<KBD_F10 code*/ "F11," = 68, /**<KBD_F11 code*/ "F12," = 69, /**<KBD_F12 code*/ "PRINTSCREEN", = 70, /**<KBD_PRINTSCREEN code*/ "SCROLL_LOCK", = 71, /**<KBD_SCROLL_LOCK code*/ "PAUSE", = 72, /**<KBD_PAUSE code*/ "INSERT", = 73, /**<KBD_INSERT code*/ "HOME", = 74, /**<KBD_HOME code*/ "PAGEUP", = 75, /**<KBD_PAGEUP code*/ "DELETE", = 76, /**<KBD_DELETE code*/ "END", = 77, /**<KBD_END code*/"PAGEDOWN",= 78, /**<KBD_PAGEDOWN code*/ "RIGHT", = 79, /**<KBD_RIGHT code*/ "LEFT", = 80, /**<KBD_LEFT code*/ "DOWN", = 81, /**<KBD_DOWN code*/ "UP", = 82, /**<KBD_UP code*/ "KEYPAD_NUM_LOCK", = 83, /**<KBD_KEYPAD_NUM_LOCK code*/ "KEYPAD_DIVIDE", = 84, /**<KBD_KEYPAD_DIVIDE code*/ "KEYPAD_MULTIPLY", = 85, /**<KBD_KEYPAD_MULTIPLY code*/ "KEYPAD_MINUS", = 86, /**<KBD_KEYPAD_MINUS code*/ "KEYPAD_PLUS", = 87, /**<KBD_KEYPAD_PLUS code*/ "KEYPAD_ENTER",= 88, /**<KBD_KEYPAD_ENTER code*/ "KEYPAD_1", = 89, /**<KBD_KEYPAD_1 code*/ "KEYPAD_2", = 90, /**<KBD_KEYPAD_2 code*/ "KEYPAD_3", = 91, /**<KBD_KEYPAD_3 code*/ "KEYPAD_4", = 92, /**<KBD_KEYPAD_4 code*/ "KEYPAD_5", = 93, /**<KBD_KEYPAD_5 code*/ "KEYPAD_6", = 94, /**<KBD_KEYPAD_6 code*/ "KEYPAD_7", = 95, /**<KBD_KEYPAD_7 code*/ "KEYPAD_8", = 96, /**<KBD_KEYPAD_8 code*/ "KEYPAD_9", = 97, /**<KBD_KEYPAD_9 code*/ "KEYPAD_0", = 98, /**<KBD_KEYPAD_0 code*/