
20
Display Functions
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.
1 byte, number of minutes to leave backlight on (0 for infinite)
Turns the display backlight off. If an inverse display colour is used this command will turn off the text.
Immediately sets the backlight brightness. If an inverse display color is used this represents the text colour
intensity instead. Default is 255.
1 byte, brightness level from 0(Dim)-255(Bright)
1.31. Set and Save
Brightness
Immediately sets and saves the backlight brightness. Although brightness can be changed using the set command,
it is reset to the saved value on start up. Default is 255.
1 byte, brightness level from 0(Dim)-255(Bright)
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.
1 byte, contrast level from 0(Light)-255(Dark)
1.33. Set and Save
Contrast
Immediately sets and saves the contrast between background and text. Although contrast can be changed using
the set command, it is reset to saved value on start up. Default is 128.
1 byte, contrast level from 0(Light)-255(Dark)
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