LK202-25-FW-V Matrix Orbital, LK202-25-FW-V Datasheet - Page 49

• Manufacturer Part Number: LK202-25-FW-V
• Description: LCD CHAR DISP 20X2 I2C/RS232/TTL
• Manufacturer: Matrix Orbital
• Series: LK202-25r

Specifications of LK202-25-FW-V

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

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]
LK202-25
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
45