Brightness¶

Set the initial brightness Optional. Type integer.

upstream_default value :

1000

Contrast¶

Set the initial contrast Optional. Type integer.

upstream_default value :

560

Device¶

Select the output device to use Optional. Type uniline.

upstream_default value :

/dev/lcd

Model¶

Select the LCD model Optional. Type enum. choice: '533', '631', '633', '635'.

upstream_default value :

633

OffBrightness¶

Set the initial off-brightness This value is used when the display is normally switched off in case LCDd is inactive. Optional. Type integer.

upstream_default value :

0

OldFirmware¶

Very old 633 firmware versions do not support partial screen updates using 'Send Data to LCD' command (31). For those devices it may be necessary to enable this flag. Optional. Type boolean.

upstream_default value :

no

Reboot¶

Reinitialize the LCD's BIOS on driver start. Optional. Type boolean.

upstream_default value :

no

Size¶

Override the LCD size known for the selected model. Usually setting this value should not be necessary. Optional. Type uniline.

upstream_default value :

20x4

Speed¶

Override the default communication speed known for the selected model. Default value depends on model Optional. Type enum. choice: '19200', '115200'.

USB¶

Enable the USB flag if the device is connected to an USB port. For serial ports leave it disabled. Optional. Type boolean.

upstream_default value :

no