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.\"
.IX Title "Config::Model::models::LCDd::hd44780 3pm"
.TH Config::Model::models::LCDd::hd44780 3pm "2023-10-13" "perl v5.36.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.nh
.SH "NAME"
Config::Model::models::LCDd::hd44780 \- Configuration class LCDd::hd44780
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Configuration classes used by Config::Model
.PP
generated from LCDd.conf
.SH "Elements"
.IX Header "Elements"
.SS "Backlight"
.IX Subsection "Backlight"
If you have a switchable backlight. \fI Optional. Type uniline.  \fR
.IP "default value :" 4
.IX Item "default value :"
no
.SS "Brightness"
.IX Subsection "Brightness"
Set brightness of the backlight (lcd2usb and usb4all):
Brightness is the brightness while the backlight is set to 'on'. \fI Optional. Type integer.  \fR
.IP "upstream_default value :" 4
.IX Item "upstream_default value :"
800
.SS "CharMap"
.IX Subsection "CharMap"
Character map to to map \s-1ISO\-8859\-1\s0 to the \s-1LCD\s0's character set
.PP
(hd44780_koi8_r, hd44780_cp1251, hd44780_8859_5 and upd16314 are possible if
compiled with additional charmaps) \fI Optional. Type enum. choice: 'hd44780_default', 'hd44780_euro', 'ea_ks0073', 'sed1278f_0b', 'hd44780_koi8_r', 'hd44780_cp1251', 'hd44780_8859_5', 'upd16314'.  \fR
.IP "upstream_default value :" 4
.IX Item "upstream_default value :"
hd44780_default
.SS "ConnectionType"
.IX Subsection "ConnectionType"
Select what type of connection. See documentation for available types. \fI Optional. Type uniline.  \fR
.IP "default value :" 4
.IX Item "default value :"
4bit
.SS "Contrast"
.IX Subsection "Contrast"
Set the initial contrast (bwctusb, lcd2usb, and usb4all) \fI Optional. Type integer.  \fR
.IP "upstream_default value :" 4
.IX Item "upstream_default value :"
800
.SS "DelayBus"
.IX Subsection "DelayBus"
You can reduce the inserted delays by setting this to false.
On fast PCs it is possible your \s-1LCD\s0 does not respond correctly.
Default: true. \fI Optional. Type uniline.  \fR
.IP "default value :" 4
.IX Item "default value :"
true
.SS "DelayMult"
.IX Subsection "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. \fI Optional. Type uniline.  \fR
.IP "upstream_default value :" 4
.IX Item "upstream_default value :"
2
.SS "Device"
.IX Subsection "Device"
Device of the serial, I2C, or \s-1SPI\s0 interface \fI Optional. Type uniline.  \fR
.IP "upstream_default value :" 4
.IX Item "upstream_default value :"
/dev/lcd
.SS "ExtendedMode"
.IX Subsection "ExtendedMode"
If you have an \s-1HD66712,\s0 a \s-1KS0073\s0 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
\&\s-1AND 4\s0 lines cannot be mixed for those connection types that support more
than one display! \fI Optional. Type uniline.  \fR
.IP "upstream_default value :" 4
.IX Item "upstream_default value :"
yes
.SS "KeepAliveDisplay"
.IX Subsection "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. \fI Optional. Type uniline.  \fR
.IP "upstream_default value :" 4
.IX Item "upstream_default value :"
0
.SS "KeyMatrix_4_1"
.IX Subsection "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 \*(L"Enter\*(R", use:
  KeyDirect_4=Enter
For matrix keys use the X and Y coordinates of the key:
  KeyMatrix_1_3=Enter. \fI Optional. Type uniline.  \fR
.IP "default value :" 4
.IX Item "default value :"
Enter
.SS "KeyMatrix_4_2"
.IX Subsection "KeyMatrix_4_2"
\&\fI Optional. Type uniline.  \fR
.IP "default value :" 4
.IX Item "default value :"
Up
.SS "KeyMatrix_4_3"
.IX Subsection "KeyMatrix_4_3"
\&\fI Optional. Type uniline.  \fR
.IP "default value :" 4
.IX Item "default value :"
Down
.SS "KeyMatrix_4_4"
.IX Subsection "KeyMatrix_4_4"
\&\fI Optional. Type uniline.  \fR
.IP "default value :" 4
.IX Item "default value :"
Escape
.SS "Keypad"
.IX Subsection "Keypad"
If you have a keypad connected.
You may also need to configure the keypad layout further on in this file. \fI Optional. Type uniline.  \fR
.IP "default value :" 4
.IX Item "default value :"
no
.SS "Lastline"
.IX Subsection "Lastline"
Specifies if the last line is pixel addressable (yes) or it controls an
underline effect (no). \fI Optional. Type boolean.  \fR
.IP "upstream_default value :" 4
.IX Item "upstream_default value :"
yes
.SS "LineAddress"
.IX Subsection "LineAddress"
In extended mode, on some controllers like the \s-1ST7036\s0 (in 3 line mode)
the next line in \s-1DDRAM\s0 won't start 0x20 higher. \fI Optional. Type uniline.  \fR
.IP "upstream_default value :" 4
.IX Item "upstream_default value :"
0x20
.SS "OffBrightness"
.IX Subsection "OffBrightness"
OffBrightness is the brightness while the backlight is set to 'off'. \fI Optional. Type integer.  \fR
.IP "upstream_default value :" 4
.IX Item "upstream_default value :"
300
.SS "OutputPort"
.IX Subsection "OutputPort"
If you have the additional output port (\*(L"bargraph\*(R") and you want to
be able to control it with the lcdproc \s-1OUTPUT\s0 command. \fI Optional. Type uniline.  \fR
.IP "default value :" 4
.IX Item "default value :"
no
.SS "Port"
.IX Subsection "Port"
I/O address of the \s-1LPT\s0 port. Usual values are: 0x278, 0x378 and 0x3BC.
For I2C connections this sets the slave address (usually 0x20). \fI Optional. Type uniline.  \fR
.IP "default value :" 4
.IX Item "default value :"
0x378
.SS "RefreshDisplay"
.IX Subsection "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. \fI Optional. Type uniline.  \fR
.IP "upstream_default value :" 4
.IX Item "upstream_default value :"
5
.SS "Size"
.IX Subsection "Size"
Specifies the size of the \s-1LCD.\s0
In case of multiple combined displays, this should be the total size. \fI Optional. Type uniline.  \fR
.IP "default value :" 4
.IX Item "default value :"
20x4
.SS "Speed"
.IX Subsection "Speed"
Bitrate of the serial port (0 for interface default) \fI Optional. Type uniline.  \fR
.IP "default value :" 4
.IX Item "default value :"
0
.SS "vspan"
.IX Subsection "vspan"
For multiple combined displays: how many lines does each display have.
Vspan=2,2 means both displays have 2 lines. \fI Optional. Type uniline.  \fR
.IP "upstream_default value :" 4
.IX Item "upstream_default value :"
2,2
.SH "SEE ALSO"
.IX Header "SEE ALSO"
.IP "\(bu" 4
cme