Matrix Orbital LK202-25 Legacy - Manual (Page 29)

LK202-25 rev 3 29
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. See section 6.1.1.
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.
Load startup screen FE 40 [40 char]
254 64 [40 char]
254 '@' [40 char] Matrix Orbital
LK202-25
Loads new startup screen (40 characters).
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. 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 6. 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.
Read module type FE 37
254 55
254 '7' see table Reads the module type. See table in section
6.1.11.
Set RS232 port speed FE 39 [speed]
254 57 [speed]
254 '9' [speed] 19,200 baud Sets RS232 speed. See table in section 6.1.12
for values of [speed]
Set Serial Number FE 34 [byte1][byte2]
254 52 [byte1][byte2]
254 '4' [byte1][byte2] This is a one-time-use command which works
only on units without factory set serial numbers.
Read Serial Number FE 35
254 53
254 '5' Reads the two byte serial number of the
module.