Matrix Orbital VK204-25 Legacy - Manual (Page 48)

Description
Paranoia allows you to lock the module from displaying information, as
well as enables the protection of the filesystem and module settings.
Each bit corresponds corresponds to a different lock level, while
sending a zero will unlock your display as the following tables explains:
Bit Data Lock Level Description
0-2 Reserved Should be left 0
3 Communication
Speed Lock When this bit is set (1) the
Baud Rate and I
2 C Slave
address are locked
4 Setting Lock When this bit is set (1)
the display settings such
as backlight, contrast and
GPO settings are locked.
(Internal EEPROM)
5 Reserved Should be left 0
6 Command Lock When this bit is set (1) all
commands but commands
202/203 are locked. (cmd
lock)
7 Display Lock When this bit is set (1) the
module is locked from dis-
playing any new informa-
tion. (text lock)
NOTES
• Sending a new data lock level will override the previous data lock level.
• Data lock levels may be combined.
Remembered Always
Default 0
Examples
Hex Dec Binary Description
0x00 0 0 Unlock
0x50 80 01010000 Setting and Command Lock
11.4 Set and Save Data Lock
Syntax Hexadecimal 0xFE 0xCB 0xF5 0xA0 [level]
Decimal 254 203 245 160 [level]
Matrix Orbital VK204-25 44