HP LD4235 41.92-inch LED Digital Signage Display - Manual (Page 88)

Communication parameter
Baud Rate: 9600 baud Rate (UART)
Data Length: 8 bit
Parity Bit: None
Stop Bit: 1 bit
Flow Control: None
Communication Code: ASCII code
Use a crossed (reverse) cable
Command reference list
Command Data (Hexadecimal)
1 2
01. Power k a 00 to 01
02. Input Select x b Refer to ‘Input Select’
03. Aspect Ratio k c Refer to ‘Aspect Ratio’
04. Energy Saving j q Refer to ‘Energy Saving’
05. Picture mode d x Refer to ‘Picture Mode’
06. Contrast k g 00 to 64
07. Brightness k h 00 to 64
08. Sharpness k k 00 to 64
09. Color k I 00 to 64
10. Tint k j 00 to 64
11. Color Temperature x u 00 to 64
12. H Position f q 00 to 64
13. V Position f r 00 to 64
14. H Size f s 00 to 64
15. Auto configuration j u 01
16. Balance k t 00 to 64
17. Sound mode d y Refer to ‘Sound Mode’
18. Treble k r 00 to 64
19. Bass k s 00 to 64
20. Speaker d v 00 to 01
21. Volume Mute k e 00 to 01
22. Volume Control k f 00 to 64
78 Chapter 12 Controlling multiple products