LK404-25 Matrix Orbital, LK404-25 Datasheet - Page 45

• Manufacturer Part Number: LK404-25
• Description: LCD Character Display Modules Yel/Grn Background Black Text
• Manufacturer: Matrix Orbital

Specifications of LK404-25

• Character Count X Line: 40 x 4
• Module Size (w X H X T): 98 mm x 60 mm x 27.5 mm
• Fluid Type: STN
• Background Color: Yellow / Green
• Backlight Type: LED Yellow
• Display Mode: Transflective

11.3 Data Lock
Matrix Orbital
Syntax
Parameters
Description
Remembered
Default
Examples
sending a zero will unlock your display as the following tables explains:
NOTES
Always
0
Paranoia allows you to lock the module from displaying information, as
Hexadecimal
Decimal
Parameter
level
well as enables the protection of the filesystem and module settings.
• Sending a new data lock level will override the previous data lock level.
• Data lock levels may be combined.
Each bit corresponds corresponds to a different lock level, while
0x00
0x50
Bit
0-2
3
4
5
6
7
Hex
Data Lock Level
Reserved
Communication
Speed Lock
Setting Lock
Reserved
Command Lock
Display Lock
Dec
80
0
0xFE 0xCA 0xF5 0xA0 [level]
254 202 245 160 [level]
LK404-25
Length
01010000
1
Binary
0
Description
Sets the data lock level
Setting and Command Lock
Description
Should be left 0
When this bit is set (1) the
Baud Rate and I
address are locked
When this bit is set (1)
the display settings such
as backlight, contrast and
GPO settings are locked.
(Internal EEPROM)
Should be left 0
When this bit is set (1) all
commands but commands
202/203 are locked. (cmd
lock)
When this bit is set (1) the
module is locked from dis-
playing any new informa-
tion. (text lock)
Description
Unlock
2
C Slave
41