12 display functions – Matrix Orbital GLK240128-25 User Manual
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Command Summary
6.12 Display Functions
12.1 Backlight
On
Dec
Hex
ASCII
254 66
FE 42
■ B
Minutes
Minutes
Minutes
v8.0
Turns the display backlight on for a specified length of time. If an inverse display color is used this command will
essentially turn on the text.
Minutes
Byte
Number of minutes to leave backlight on, a value of 0 leaves the display on indefinitely.
12.2 Backlight
Off
Dec
Hex
ASCII
254 70
FE 46
■ F
v8.0
Turns the display backlight off. If an inverse display colour is used this command will turn off the text.
12.3 Set
Brightness
Dec
Hex
ASCII
254 153
FE 99
■ Ö
Brightness
Brightness
Brightness
v8.0
Immediately sets the backlight brightness. If an inverse display color is used this represents the text colour
intensity instead. Default is 255.
Brightness
Byte
Brightness level from 0(Dim) to 255(Bright).
12.4 Set and Save
Brightness
Dec
Hex
ASCII
254 152
FE 98
■ ÿ
Brightness
Brightness
Brightness
v8.0
Immediately sets and saves the backlight brightness. Although brightness can be changed using the set command,
it is reset to this saved value on start up. Default is 255.
Brightness
Byte
Brightness level from 0(Dim) to 255(Bright).
12.5 Set
Contrast
Dec
Hex
ASCII
254 80
FE 50
■ P
Contrast
Contrast
Contrast
v8.0
Immediately sets the contrast between background and text. If an inverse display color is used this also represents
the text brightness. Default is 128.
Contrast
Byte
Contrast level from 0(Light) to 255(Dark).
12.6 Set and Save
Contrast
Dec
Hex
ASCII
254 145
FE 91
■ æ
Contrast
Contrast
Contrast
v8.0
Immediately sets and saves the contrast between background and text. Although contrast can be changed using
the set command, it is reset to this saved value on start up. Default is 128.
Contrast
Byte
Contrast level from 0(Light) to 255(Dark).