How to press the up arrow and print screen keys with arduino keyboard emulation

Projects General Guidance
1

Does anyone know how to press the up arrow and print screen keys with Arduino keyboard emulation?

2

Try...

Keyboard.press(38); //Press Up Arrow
Keyboard.press(42); //Press Print
delay(100); //wait
Keyboard.releaseAll(); //release

3

Thank you! Do you know what number represents the option and command keys?

4

Sounds like a MAC

I think Command is 55 and option is 58

5

Thanks! so would down arrow be 37, left 36 and right 35?

6

Try these and see if they work. MAC codes are different from PC codes.

NAME		CODE	VALUE
		0	29
		1	18
		2	19
		3	20
		4	21
		5	23
		6	22
		7	26
		8	28
		9	25
		A	0
		B	11
		C	8
		D	2
		E	14
		F	3
		G	5
		H	4
		I	34
		J	38
		K	40
		L	37
		M	46
		N	45
		O	31
		P	35
		Q	12
		R	15
		S	1
		T	17
		U	32
		V	9
		W	13
		X	7
		Y	16
		Z	6
SectionSign	?	10
Grave		`	50
Minus		-	27
Equal		=	24
LeftBracket	[	33
RightBracket	]	30
Semicolon	;	41
Quote		'	39
Comma		","	43
Period		.	47
Slash		/	44
Backslash	\	42
Keypad0		0	82
Keypad1		1	83
Keypad2		2	84
Keypad3		3	85
Keypad4		4	86
Keypad5		5	87
Keypad6		6	88
Keypad7		7	89
Keypad8		8	91
Keypad9		9	92
KeypadDecimal	.	65
KeypadMultiply	*	67
KeypadPlus	+	69
KeypadDivide	/	75
KeypadMinus	-	78
KeypadEquals	=	81
KeypadClear	?	71
KeypadEnter	?	76
Space		?	49
Return		?	36
Tab		?	48
Delete		?	51
ForwardDelete	?	117
Linefeed 	?	52
Escape		?	53
Command		?	55
Shift		?	56
CapsLock	?	57
Option		?	58
Control		?	59
RightShift	?	60
RightOption	?	61
RightControl	?	62
Function	fn	63
		F1	122
		F2	120
		F3	99
		F4	118
		F5	96
		F6	97
		F7	98
		F8	100
		F9	101
		F10	109
		F11	103
		F12	111
		F13	105
BrightnessDown	F14	107
BrightnessUp	F15	113
		F16	106
		F17	64
		F18	79
		F19	80
		F20	90
VolumeUp 	?	72
VolumeDown 	?	73
Mute 		?	74
Help/Insert	?	114
Home		?	115
End		?	119
PageUp		?	116
PageDown	?	121
LeftArrow	?	123
RightArrow	?	124
DownArrow	?	125
UpArrow		?	126
7

Do the above work with windows or mac? (I'm using windows)

8

Those are Mac codes but Windows does not have a command nor option key?

9

Microsoft Virtual-Key Codes are here...

10

it's saying that the print screen code is 2C, is that correct?

11

There are some helpful macros listed here that will make your code a bit more readable:

e.g.:

Keyboard.press(KEY_UP_ARROW);

but printscreen isn't on the list.