Matrix Orbital LK162-12 Legacy - Manual (Page 37)

LK162-12 rev 4 37
7.7 Miscellaneous Commands
Note: The letter "R" in the Default column indicates that this state can be saved to nonvolatile memory with
the Remember command.
Table 7-4 Miscellaneous Commands
Command Syntax Default Notes
Remember FE 93 [0|1]
254 147 off Turns the "remember" function on [1] or off [0].
Clear display FE 58
254 88
254 'X' n/a Clears screen of text and graphics, places
text cursor at top left.
Set contrast FE 50 [contrast]
254 80 [contrast]
254 'P' [contrast] 0x80
128 Sets display contrast. Compensates 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 contrast" but saves [contrast]
as default.
Backlight on FE 42 [minutes]
254 66 [minutes]
254 'B' [minutes] on
R Backlight will stay on for [minutes]. If [minutes]
= 0 backlight will stay on permanently.
Backlight off FE 46
254 70
254 'F' on
R Turns off backlight.
Set Brightness FE 99 [brightness]
254 153
[brightness] 0xFF
255 Sets display brightness. Brightness is a value
between 0 and 255 (hex 0 to FF). Larger =
brighter.
Set Brightness and
save FE 98 [brightness]
254 152
[brightnes s] 0xFF
255 Same as "set brightness " but saves
[brightness] into memory.
Load startup screen FE 40 [32 char]
254 64 [32 char]
254 '@' [32 char] Matrix Orbital
LK162-12
Loads new startup screen (32 characters).
Screen is remembered for subsequent power
ups.
GPO or Keypad
Interface Mode FE 25 [mode]
254 37 [mode]
254 % [mode] 0 To select either GPO or Keypad mode.
0 = Keypad Interface Mode
1 = GPO mode
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 7. See section 2.2 for further
details.
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 7. See section 2.2 for further
details.
Set I
2
C address FE 33 [address]
254 51 [address]
254 '3' [address] 0x50 Value is write address and must be even,
read address is 1 higher.