ViewSonic CDE7512-2 User Manual page 64

Example 1: Set Brightness as 76 for Display (#02) and this command is valid
Send (Hex Format)
Name Length
Hex 0x38
Reply (Hex Format)
Name
Hex
Example 2: Set Brightness as 75 for Display (#02) and this command is NOT valid
Send (Hex Format)
Name Length
Hex 0x38
Reply (Hex Format)
Name
Hex
ID Command Type Command Value1 Value2 Value3
0x30
0x73
0x32
Length
0x30
0x34
0x32
ID Command Type Command Value1 Value2 Value3
0x30
0x73
0x32
Length
0x30
0x34
0x32
0x24
ID Command Type
0x2B
0x24
ID Command Type
0x2D
64
0x30 0x37 0x36
CR
0x0D
0x30 0x37 0x35
CR
0x0D
CR
0x0D
CR
0x0D