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6.6 Data Security

6.1 Set

Remember

Dec

Hex

ASCII

254 147

FE 93

■ ô

Switch

v5.0

Allows changes to specific settings to be saved to the display memory. Writing to non-volatile memory can be slow

and each change consumes 1 write of at least 100,000 available. The Command Summary outlines which

commands are saved always, never, and when this command is on only. Remember is off by default.

Switch

Byte

1 for on or 0 for off.

6.2 Set Data

Lock

Dec

Hex

ASCII

254 202 245 160

FE CA F5 A0

■ ╩ ⌡ á

Level

v5.0

Temporarily locks certain aspects of the display to ensure no inadvertent changes are made. The lock is released

after a power cycle. A new level overrides the old, and levels can be combined. Default is 0.

Level

Byte

Lock level, see Data Lock Bits table.

Table 11: Data Lock Bits

Display

Command

Reserved

Setting

Address

Reserved

Table 12: Lock Parameters

Reserved

Place holders only, should be 0

Address

Locks the Baud Rate and I2C address

Setting

Locks all settings from being saved

Command

Locks all commands, text can still be written

Display

Locks entire display, no new text can be displayed

6.3 Set and Save

Data Lock

Dec

Hex

ASCII

254 203 245 160

FE CB F5 A0

■ ╦ ⌡ á

Level

v5.0

Locks certain aspects of the display to ensure no inadvertent changes are made. The lock is not affected by a

power cycle. A new level overrides the old, and levels can be combined. Default is 0.

Level

Byte

See Data Lock Bits table.

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 30 31

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