Matrix Orbital PK202-25 - Manual (Page 30)

6.1.3 Set brightness (254 89 [brightness]) (R)
Brightness is set to 100% by default. his commands sets the display’s backlight brightness to [bright-
ness], where [brightness] is a value between 0x00 and 0xFF (between 0 and 255). Lighting conditions will
affect the actual value used for optimal viewing. Lower values will cause the intensity to “dim”, while higher
values cause the intensity to “brighten”.
6.1.4 Set brightness and Save (254 145 [brightness]) (R)
This commands sets the display’s brightness to [brightness] and saves it, where [brightness] is a value
between 0x00 and 0xFF (between 0 and 255). Lower values will cause the intensity to “dim”, while higher
values cause the intensity to “brighten”. Once this command has been sent, [brightness] will be set accord-
ingly on additional power ups.
6.1.5 Display on (254 66 [minutes]) (R)
This command turns on the display for a time of [minutes] minutes. The maximum value of [minutes] is
100. If [minutes] is zero (0), the display will remain on indefinitely.
6.1.6 Display off (254 70) (R)
This command turns the display off.
6.1.7 Load startup screen (254 64 [40 characters])
This command sets and memorizes the startup screen that will appear each time the display is turned on.
By default the screen shows:
Table 12: Default Screen
Matrix Orbital
PK202-25
The 40 characters define the two 20 character rows of the screen.
Matrix Orbital PK202-25 26