Keyboard key codes

I have been using my DUEGUI library and I want to create a flexible touch screen display with menus etc which then send relevant codes via USB keyboard control to the computer. I can easily send ASCII codes and standard keys but I want to send "KEYPAD 1", "KEYPAD ENTER", "KEYPAD ." etc

Is there a list of keyboard key codes.

Ok I've found out for myself so I'll share it with you lot :smiley:

Here goes.....

Open the USBAPI.h file located at Java/hardware/arduino/sam/cores/arduino/USB/....

Look through the list and you will find the following section:

//===============================
//===================================
//	Keyboard

#define KEY_LEFT_CTRL		0x80
#define KEY_LEFT_SHIFT		0x81
#define KEY_LEFT_ALT		0x82
#define KEY_LEFT_GUI		0x83
#define KEY_RIGHT_CTRL		0x84
#define KEY_RIGHT_SHIFT		0x85
#define KEY_RIGHT_ALT		0x86
#define KEY_RIGHT_GUI		0x87

#define KEY_UP_ARROW		0xDA
#define KEY_DOWN_ARROW		0xD9
#define KEY_LEFT_ARROW		0xD8
#define KEY_RIGHT_ARROW		0xD7
#define KEY_BACKSPACE		0xB2
#define KEY_TAB				0xB3
#define KEY_RETURN			0xB0
#define KEY_ESC				0xB1
#define KEY_INSERT			0xD1
#define KEY_DELETE			0xD4
#define KEY_PAGE_UP			0xD3
#define KEY_PAGE_DOWN		0xD6
#define KEY_HOME			0xD2
#define KEY_END				0xD5
#define KEY_CAPS_LOCK		0xC1
#define KEY_F1				0xC2
#define KEY_F2				0xC3
#define KEY_F3				0xC4
#define KEY_F4				0xC5
#define KEY_F5				0xC6
#define KEY_F6				0xC7
#define KEY_F7				0xC8
#define KEY_F8				0xC9
#define KEY_F9				0xCA
#define KEY_F10				0xCB
#define KEY_F11				0xCC
#define KEY_F12				0xCD

You can now add your own which you can add from this list as follows:

// missing function keys
//
#define KEY_F13				0x68
#define KEY_F14				0x69
#define KEY_F15				0x6A
#define KEY_F16				0x6B
#define KEY_F17				0x6C
#define KEY_F18				0x6D
#define KEY_F19				0x6E
#define KEY_F20				0x6F
#define KEY_F21				0x70
#define KEY_F22				0x71
#define KEY_F23				0x72
#define KEY_F24				0x73
#define KEY_F24				0x73

// missing sound control keys
//
#define KEY_MUTE				0x7F
#define KEY_VOLUMEUP			0x80
#define KEY_VOLUMEDOWN		0x81

// Numeric keypad
//
#define KEY_KEYPAD_0			0x62
#define KEY_KEYPAD_1			0x59
#define KEY_KEYPAD_2			0x5A
#define KEY_KEYPAD_3			0x5B
#define KEY_KEYPAD_4			0x5C
#define KEY_KEYPAD_5			0x5D
#define KEY_KEYPAD_6			0x5E
#define KEY_KEYPAD_7			0x5F
#define KEY_KEYPAD_8			0x60
#define KEY_KEYPAD_9			0x61
#define KEY_KEYPAD_DECIMAL		0x63
#define KEY_KEYPAD_ENTER		0x58
#define KEY_KEYPAD_PLUS		0x57
#define KEY_KEYPAD_MINUS		0x56
#define KEY_KEYPAD_MULTIPLY		0x55
#define KEY_KEYPAD_DIVIDE		0x54
#define KEY_KEYPAD_NUMLOCK		0x53
#define KEY_KEYPAD_EQUALS		0x67

Will update further but the volume ones are a nice simple way of controlling the computers volume!

Oh well it didn’t work in the end :frowning:

My arduino board show this erro i install keyboard.h liabary but seethis erro
Arduino: 1.8.5 (Windows Store 1.8.10.0) (Windows 10), Board: “Arduino/Genuino Uno”

C:\Users\DHILUS~1\AppData\Local\Temp\arduino_modified_sketch_384137\sketch_may09b.ino: In function ‘void setup()’:

sketch_may09b:5: error: ‘Keyboard’ not found. Does your sketch include the line ‘#include <Keyboard.h>’?
Keyboard.begin();

^

C:\Users\DHILUS~1\AppData\Local\Temp\arduino_modified_sketch_384137\sketch_may09b.ino: In function ‘void loop()’:

sketch_may09b:21: error: ‘Keyboard’ not found. Does your sketch include the line ‘#include <Keyboard.h>’?
Keyboard.print(“q”);

^

sketch_may09b:26: error: ‘Keyboard’ not found. Does your sketch include the line ‘#include <Keyboard.h>’?
Keyboard.print(“w”);

^

sketch_may09b:30: error: ‘Keyboard’ not found. Does your sketch include the line ‘#include <Keyboard.h>’?
Keyboard.print(“e”);

^

sketch_may09b:34: error: ‘Keyboard’ not found. Does your sketch include the line ‘#include <Keyboard.h>’?
Keyboard.print(“r”);

^

sketch_may09b:39: error: ‘Keyboard’ not found. Does your sketch include the line ‘#include <Keyboard.h>’?
Keyboard.print(“t”);

^

sketch_may09b:44: error: ‘Keyboard’ not found. Does your sketch include the line ‘#include <Keyboard.h>’?
Keyboard.print(“y”);

^

Multiple libraries were found for “Keyboard.h”
Used: C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.10.0_x86__mdqgnx93n4wtt\libraries\Keyboard
Not used: C:\Users\dhilushan\Documents\Arduino\libraries\Keyboard-1.0.1
exit status 1
‘Keyboard’ not found. Does your sketch include the line ‘#include <Keyboard.h>’?

This report would have more information with
“Show verbose output during compilation”
option enabled in File → Preferences.

THe code

#include “Keyboard.h”

void setup() {
// put your setup code here, to run once:
Keyboard.begin();

}

void loop() {
// put your main code here, to run repeatedly:

int c = analogRead(A0);
int d = analogRead(A1);
int e = analogRead(A2);
int f = analogRead(A3);
int g = analogRead(A4);
int h = analogRead(A5);

if(c>800){
Keyboard.print(“q”);
delay(05);

}
if(d>800){
Keyboard.print(“w”);
delay(05);
}
if(e>800){
Keyboard.print(“e”);
delay(05);
}
if(f>800){
Keyboard.print(“r”);
delay(05);
}

if(g>800){
Keyboard.print(“t”);
delay(05);
}

if(h>800){
Keyboard.print(“y”);
delay(05);
}

}

Dilushan123
You need another board "Arduino/Genuino Uno" that does not work

hello guys,

i wanna ask some project about keyboard.
im use library keyboard.h, and i how can i get code of numlock?

thank you.