Display functions, 8 display functions – Matrix Orbital GLK24064-16-1U User Manual
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5.8 Display Functions
8.1 Display On
Dec
Hex
ASCII
254 66
FE 42
■ B
Minutes
Minutes
Minutes
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
1 byte, number of minutes to leave backlight on, a value of 0 leaves the display on indefinitely
8.2 Display Off
Dec
Hex
ASCII
254 70
FE 46
■ F
Turns the display backlight off. If an inverse display colour is used this command will turn off the text.
8.3 Set Brightness
Dec
Hex
254 153
FE 99
Brightness
Brightness
Immediately sets the backlight brightness. If an inverse display color is used this represents the text colour
intensity instead. Default is 255.
Brightness
1 byte, brightness level from 0(Dim) to 255(Bright)
8.4 Set and Save
Brightness
Dec
Hex
254 152
FE 98
Brightness
Brightness
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
1 byte, brightness level from 0(Dim) to 255(Bright)
8.5 Set Backlight
Colour
Dec
Hex
254 130
FE 82
Red Green Blue
Red Green Blue
Immediately sets the backlight colour of a tricolour display. Output is a mix of the three colours and can be
controlled with brightness and contrast commands. Default is 255, 255, 255, or white.
Red
1 byte, red brightness level from 0(Dim) to 255(Bright)
Green
1 byte, green brightness level from 0(Dim) to 255(Bright)
Blue
1 byte, blue brightness level from 0(Dim) to 255(Bright)
8.6 Set
Contrast
Dec
Hex
ASCII
254 80
FE 50
■ P
Contrast
Contrast
Contrast
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
1 byte, contrast level from 0(Light) to 255(Dark)