ID TECH Spectrum Air User Manual
Copyright © 2020, International Technologies & Systems Corporation. All rights reserved.
Page | 31
10.
Appendix A: Key Code Table in USB Keyboard Interface
For most characters, "Shift On" and "Without Shift" will be reverse if Caps Lock is on. Firmware needs
to check current Caps Lock status before sending out data.
For Function code B1 to BA, if "Num Lock" is not set, then set it and clear it after finishing sending out
code.
For Function code BB to C2, C9 to CC, if "Num Lock" is set then clear it and set it after finishing
sending out code.
Keystroke
Hex Value Functional Code USB KB Code
Ctrl+2
00
1F Ctrl On
Ctrl+A
01
04 Ctrl On
Ctrl+B
02
05 Ctrl On
Ctrl+C
03
06 Ctrl On
Ctrl+D
04
07 Ctrl On
Ctrl+E
05
08 Ctrl On
Ctrl+F
06
09 Ctrl On
Ctrl+G
07
0A Ctrl On
BS
08
\bs
2A
Tab
09
\tab
2B
Ctrl+J
0A
0D Ctrl On
Ctrl+K
0B
0E Ctrl On
Ctrl+L
0C
0F Ctrl On
Enter
0D
\enter
28
Ctrl+N
0E
11 Ctrl On
Ctrl+O
0F
12 Ctrl On
Ctrl+P
10
13 Ctrl On
Ctrl+Q
11
14 Ctrl On
Ctrl+R
12
15 Ctrl On
Ctrl+S
13
16 Ctrl On
Ctrl+T
14
17 Ctrl On
Ctrl+U
15
18 Ctrl On
Ctrl+V
16
19 Ctrl On
Ctrl+W
17
1A Ctrl On
Ctrl+X
18
1B Ctrl On
Ctrl+Y
19
1C Ctrl On
Ctrl+Z
1A
1D Ctrl On
ESC
1B
\esc
29
Ctrl+\
1C
31 Ctrl On