Config::Model::models::LCDd::hd44780 (3)

Leading comments

Automatically generated by Pod::Man 4.07 (Pod::Simple 3.32)

Standard preamble:
========================================================================

(The comments found at the beginning of the groff file "man3/Config::Model::models::LCDd::hd44780.3pm".)

NAME

Config::Model::models::LCDd::hd44780 - Configuration class LCDd::hd44780

DESCRIPTION

Configuration classes used by Config::Model

generated from LCDd.conf

Elements

Backlight

If you have a switchable backlight. Optional. Type uniline. default: 'no'.

Brightness

Set brightness of the backlight (lcd2usb and usb4all): Brightness is the brightness while the backlight is set to 'on'. Optional. Type integer. upstream_default: '800'.

CharMap

Character map to to map to the 's character set

(hd44780_koi8_r, hd44780_cp1251, hd44780_8859_5 and upd16314 are possible if compiled with additional charmaps) Optional. Type enum. choice: 'hd44780_default', 'hd44780_euro', 'ea_ks0073', 'sed1278f_0b', 'hd44780_koi8_r', 'hd44780_cp1251', 'hd44780_8859_5', 'upd16314'. upstream_default: 'hd44780_default'.

ConnectionType

Select what type of connection. See documentation for available types. Optional. Type uniline. default: '4bit'.

Contrast

Set the initial contrast (bwctusb, lcd2usb, and usb4all) Optional. Type integer. upstream_default: '800'.

DelayBus

You can reduce the inserted delays by setting this to false. On fast PCs it is possible your does not respond correctly. Default: true. Optional. Type uniline. default: 'true'.

DelayMult

If your display is slow and cannot keep up with the flow of data from LCDd, garbage can appear on the LCDd. Set this delay factor to 2 or 4 to increase the delays. Default: 1. Optional. Type uniline. upstream_default: '2'.

Device

Device of the serial, I2C, or interface Optional. Type uniline. upstream_default: '/dev/lcd'.

ExtendedMode

If you have an a or another controller with 'extended mode', set this flag to get into 4-line mode. On displays with just two lines, do not set this flag. As an additional restriction, controllers with and without extended mode lines cannot be mixed for those connection types that support more than one display! Optional. Type uniline. upstream_default: 'yes'.

KeepAliveDisplay

Some displays (e.g. vdr-wakeup) need a message from the driver to that it is still alive. When set to a value bigger then null the character in the upper left corner is updated every <KeepAliveDisplay> seconds. Default: 0. Optional. Type uniline. upstream_default: '0'.

KeyMatrix_4_1

If you have a keypad you can assign keystrings to the keys. See documentation for used terms and how to wire it. For example to give directly connected key 4 the string ``Enter'', use:
  KeyDirect_4=Enter For matrix keys use the X and Y coordinates of the key:
  KeyMatrix_1_3=Enter. Optional. Type uniline. default: 'Enter'.

KeyMatrix_4_2

Optional. Type uniline. default: 'Up'.

KeyMatrix_4_3

Optional. Type uniline. default: 'Down'.

KeyMatrix_4_4

Optional. Type uniline. default: 'Escape'.

Keypad

If you have a keypad connected. You may also need to configure the keypad layout further on in this file. Optional. Type uniline. default: 'no'.

Lastline

Specifies if the last line is pixel addressable (yes) or it controls an underline effect (no). Optional. Type boolean. upstream_default: 'yes'.

LineAddress

In extended mode, on some controllers like the (in 3 line mode) the next line in won't start 0x20 higher. Optional. Type uniline. upstream_default: '0x20'.

OffBrightness

OffBrightness is the brightness while the backlight is set to 'off'. Optional. Type integer. upstream_default: '300'.

OutputPort

If you have the additional output port (``bargraph'') and you want to be able to control it with the lcdproc command. Optional. Type uniline. default: 'no'.

Port

I/O address of the port. Usual values are: 0x278, 0x378 and 0x3BC. For I2C connections this sets the slave address (usually 0x20). Optional. Type uniline. default: '0x378'.

RefreshDisplay

If you experience occasional garbage on your display you can use this option as workaround. If set to a value bigger than null it forces a full screen refresh <RefreshDiplay> seconds. Default: 0. Optional. Type uniline. upstream_default: '5'.

Size

Specifies the size of the In case of multiple combined displays, this should be the total size. Optional. Type uniline. default: '20x4'.

Speed

Bitrate of the serial port (0 for interface default) Optional. Type uniline. default: '0'.

vspan

For multiple combined displays: how many lines does each display have. Vspan=2,2 means both displays have 2 lines. Optional. Type uniline. upstream_default: '2,2'.

SEE ALSO

*

cme