Matrix Orbital LK202-24-USB - Manual (Page 42)

Command Syntax Default Notes
Set contrast FE 50 [contrast]
254 80 [contrast]
254 “P” [contrast] 0x80
128 Sets display con-
trast.
Compen-
sates for viewing
angle.
Contrast
is a value between
0 and 255 (hex 0
to FF). Larger =
darker.
Set contrast and save FE 91 [contrast]
254 145 [contrast] 0x80
128 Same as "set con-
trast" but saves
[contrast] as de-
fault.
Backlight on FE 42 [minutes]
254 66 [minutes]
254 “B” [minutes] on
R Backlight will
stay on for [min-
utes]. If [minutes]
=
0 backlight
will stay on
permanently.
Backlight off FE 46
254 70
254 “F” on
R Turns off back-
light.
Set backlight brightness FE 99 [brightness]
254 153 [brightness]
254 0xFF
255 Sets display back-
light brightness.
Set backlight brightness
and save FE 98 [brightness]
254 152 [brightness]
254 0xFF
255 Same as “Set
backlight bright-
ness” but saves
[brightness]
as
default.
Load startup screen FE 40 [40 char]
254 64 [40 char]
254 “@” [40 char] Matrix Orbital
LK202-24-USB Loads new startup
screen (40 char-
acters).
Screen
is remembered for
subsequent power
ups.
General purpose output off FE 56 [gpo #]
254 86 [gpo #]
254 “V” [gpo #] off Turns a general
purpose
output
OFF. [gpo #] may
be from 1 to 6.
General purpose output on FE 57 [gpo #]
254 87 [gpo #]
254 “W” [gpo #] off Turns a general
purpose
output
ON. [gpo #] may
be from 1 to 6.
Matrix Orbital LK202-24-USB 38