Hatteland Display 13 inch - HD 13T21 STD (Widescreen) - Manual (Page 20)

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DOC101681-1- rev.2
20
8 and 13" DIS DDC Control
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[S] 6E [W] 51 85 E7 F3 01 32 01 9C [P]
[S] 6E [W] 51 84 E2 F3
01 32 99 [P]
[S] 6F [R] 6E 84 E4
01 32 01 6C [P]
Red color  Set or Get data length.
Green color  Sub function ID.
Blue color  Set or get data.
 Data setting description
0x00  Independent controls.
0x01  Follow back light control.
 Sensor
VCP
Code
Sub-F Function Description
D
N
Type
R W
0xF3 0x38 e1) Ambient Light Sensor 2 RO
0xF3 0x39 e2) Ambient Light Sensor Range 1 1 RW
0xF3 0x3A TBD WO
3.3.18. Sub-Function: 0x38 Ambient Light Sensor
This command is get sensor value of ambient light.
Command example:
[S] 6E [W] 51 84 E2 F3
02 38 90 [P]
[S] 6F [R] 6E 85 E4
02 38 00 31 54 [P]
Red color  Set or Get data length.
Green color  Sub function ID.
Blue color  Set or get data.
 Data description
0x00 is high byte of word data.
0x31 is low byte of word data.
0x0031  49 LUX
3.3.19. Sub-Function: 0x39 Ambient Light Sensor Range
This command is sensor receive range level setting that level range is 0 to 4.
Command example:
[S] 6E [W] 51 85 E7 F3
01 39 03 95 [P]