HP LD5535 55-inch LED Digital Signage Display - Manual (Page 83)

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 k b Refer to ‘Input Select’
03. Aspect Ratio k c Refer to ‘Aspect Ratio’
04. Energy Saving f l 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 01 to 64
09. Color Temperature k u 00 to 03
10. Auto configuration j u 01
11. Balance k t 00 to 64
12. Sound Mode d y Refer to ‘Sound Mode’
13. Treble k r 00 to 64
14. Bass k s 00 to 64
15. Speaker d v 00 to 01
16. Volume Mute k e 00 to 01
17. Volume Control k f 00 to 64
18. Time f a Refer to ‘Time’
19. Off Timer (On/Off Timer) Time f e Refer to ‘Off Timer’
20. On Timer (On/Off Timer) Time f d Refer to ‘On Timer’
21. Sleep Time f f 00 to 08
22. Power On Delay f h 00 to 64
Communication parameter 73