LCD0821-VPT Matrix Orbital, LCD0821-VPT Datasheet - Page 38

• Manufacturer Part Number: LCD0821-VPT
• Description: LCD ALPHA/NUM DISPL 8X2 Y/G BK
• Manufacturer: Matrix Orbital
• Series: LCD0821r

Specifications of LCD0821-VPT

• Display Type: TN - Twisted Nematic
• Display Mode: Reflective
• Number Of Digits/alpha: 16
• Outline L X W X H: 58.00mm x 32.00mm x 25.00mm
• Viewing Area: 38.00mm L x 16.00mm W
• Backlight: LED - Yellow/Green
• Display Format: 8 x 2
• Character Size: 5.56mm H x 2.96mm W
• Character Format: *
• Voltage - Supply: 12V
• Dot Size: 0.06mm W x 0.17mm H
• Interface: I²C, RS232, TTL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Other names: LCD082-VPT; LCD082-VPT

9.4 Set and Save Data Lock
Matrix Orbital
Description
Remembered
Default
Examples
Syntax
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
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 0xCB 0xF5 0xA0 [level]
254 203 245 160 [level]
LCD0821
01010000
Binary
0
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
34