fhem-mirror/FHEM/21_OWLCD.pm
phenning e3607a76a9 00_OWX.pm: Neue Version, kleinere Fixes
11_OWX_CCC: Neue Version, kleinere Fixes
11_OWX_FRM: Neue Version, kleinere Fixes
11_OWX_SER: Neue Version, kleinere Fixes
11_OWX_TCP: Neue Version, kleinere Fixes
21_OWAD.pm: Neue Version, Support für OWX_ASYNC entfernt, kleinere Fixes
21_OWCOUNT.pm: Neue Version, Support für OWX_ASYNC entfernt, kleinere Fixes
21_OWID.pm: Neue Version, Support für OWX_ASYNC entfernt, kleinere Fixes
21_OWLCD.pm: Neue Version, Support für OWX_ASYNC entfernt, kleinere Fixes
21_OWMULTI.pm: Neue Version, Support für OWX_ASYNC entfernt, kleinere Fixes
21_OWSWITCH.pm: Neue Version, Support für OWX_ASYNC entfernt, kleinere Fixes
21_OWTHERM.pm: Neue Version, Support für OWX_ASYNC entfernt, kleinere Fixes
21_OWVAR.pm: Neue Version, Support für OWX_ASYNC entfernt, kleinere Fixes

git-svn-id: https://svn.fhem.de/fhem/trunk/fhem@23553 2b470e98-0d58-463d-a4d8-8e2adae1ed80
2021-01-19 13:51:06 +00:00

1478 lines
50 KiB
Perl

########################################################################################
#
# OWLCD.pm
#
# FHEM module to commmunicate with the 1-Wire LCD hardware
#
# Prof. Dr. Peter A. Henning
#
# $Id$
#
########################################################################################
#
# define <name> OWLCD <ROM_ID> or FF.<ROM_ID>
#
# where <name> may be replaced by any name string
#
# <ROM_ID> is a 12 character (6 byte) 1-Wire ROM ID
# without Family ID, e.g. A2D90D000800
#
# get <name> id => FF.ROM_ID.CRC
# get <name> gpio => current state of the gpio pins (15 = all off, 0 = all on)
# get <name> counter => four values (16 Bit) of the gpio counter
# get <name> version => firmware version of the LCD adapter
# get <name> memory <page> => get one of the internal memory pages 0..6
# get <name> version => OWX version number
#
# set <name> alert red|yellow|beep|none => set one of the alert states (gpio pins)
# set <name> icon <num> on|off|blink => set one of the icons 0..14
# set <name> icon 15 0..6 => set icon no. 15 in one of its values
# set <name> line <line> <string(s)> => set one of the display lines 0..3
# set <name> memory <page> <string(s) => set one of the internal memory pages 0..6
# set <name> gpio => state of the gpio pins 0..7
# set <name> backlight on|off => set backlight on or off
# set <name> lcd on|off => set LCD power on or off
# set <name> reset => reset the display
# set <name> test => display a test content
#
# attr <name> lcdgeometry => LCD geometry values are 0-32-64-96 or 0-64-20-84
#
# Careful: Not ASCII ! strange Codepage
########################################################################################
#
# This programm is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# The GNU General Public License can be found at
# http://www.gnu.org/copyleft/gpl.html.
# A copy is found in the textfile GPL.txt and important notices to the license
# from the author is found in LICENSE.txt distributed with these scripts.
#
# This script is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
########################################################################################
package main;
use vars qw{%attr %defs %modules $readingFnAttributes $init_done};
use Time::HiRes qw(gettimeofday);
use strict;
use warnings;
my $owx_version="7.23";
#-- controller may be HD44780 or KS0073
# these values can be changed by attribute for different display
# geometries or memory maps
my $lcdcontroller = "KS0073";
my $lcdlines = 4;
my $lcdchars = 20;
my @lcdpage = (0,32,64,96);
#-- declare variables
my %gets = (
"id" => ":noArg",
"memory" => ":noArg",
"gpio" => ":noArg",
"counter" => ":noArg",
"version" => ":noArg"
#"register" => "",
#"data" => ""
);
my %sets = (
"icon" => "",
"line" => "",
"memory" => "",
"gpio" => "",
"gpiobit" => "",
"backlight" => "",
"lcd" => "",
"reset" => "",
"test" => "",
"initialize" => ""
);
my %updates = ();
########################################################################################
#
# The following subroutines are independent of the bus interface
#
# Prefix = OWLCD
#
########################################################################################
#
# OWLCD_Initialize
#
# Parameter hash = hash of device addressed
#
########################################################################################
sub OWLCD_Initialize ($) {
my ($hash) = @_;
$hash->{DefFn} = "OWLCD_Define";
$hash->{UndefFn} = "OWLCD_Undef";
$hash->{GetFn} = "OWLCD_Get";
$hash->{SetFn} = "OWLCD_Set";
$hash->{NotifyFn} = "OWLCD_Notify";
$hash->{InitFn} = "OWLCD_Init";
$hash->{AttrFn} = "OWLCD_Attr";
my $attlist = "IODev do_not_notify:0,1 showtime:0,1 ".
"lcdgeometry:0-32-64-96,0-64-20-84 lcdcontroller:KS0073,HD44780 ".
$readingFnAttributes;
$hash->{AttrList} = $attlist;
#-- make sure OWX is loaded so OWX_CRC is available if running with OWServer
main::LoadModule("OWX");
}
#########################################################################################
#
# OWLCD_Define - Implements DefFn function
#
# Parameter hash = hash of device addressed, def = definition string
#
#########################################################################################
sub OWLCD_Define ($$) {
my ($hash, $def) = @_;
#-- define <name> OWLCD <ROM_ID>
my @a = split("[ \t][ \t]*", $def);
my ($name,$fam,$id,$crc,$ret);
#-- default
$name = $a[0];
$ret = "";
#-- check syntaxeverywhere, everytime
return "OWLCD: Wrong syntax, must be define <name> OWLCD <id>"
if(int(@a) !=3 );
#-- check id
if( $a[2] =~ m/^[0-9|a-f|A-F]{12}$/ ) {
$id = $a[2];
} elsif( $a[2] =~ m/^FF\.[0-9|a-f|A-F]{12}$/ ) {
$id = substr($a[2],3);
} else {
return "OWLCD: $a[0] ID $a[2] invalid, specify a 12 digit or 2.12 digit value";
}
#-- 1-Wire ROM identifier in the form "FF.XXXXXXXXXXXX.YY"
# determine CRC Code - only if this is a direct interface
$crc = defined($hash->{IODev}->{INTERFACE}) ? sprintf("%02x",OWX_CRC("FF.".$id."00")) : "00";
#-- Define device internals
$hash->{ROM_ID} = "FF.".$id.$crc;
$hash->{OW_ID} = $id;
$hash->{OW_FAMILY} = "FF";
$hash->{PRESENT} = 0;
$hash->{ERRCOUNT} = 0;
#-- Couple to I/O device
AssignIoPort($hash);
if( !defined($hash->{IODev}) or !defined($hash->{IODev}->{NAME}) ){
return "OWLCD: Warning, no 1-Wire I/O device found for $name.";
}
$modules{OWLCD}{defptr}{$id} = $hash;
$hash->{STATE} = "Defined";
Log3 $name,3, "OWLCD: Device $name defined.";
$hash->{NOTIFYDEV} = "global";
if ($main::init_done) {
return OWLCD_Init($hash);
}
return undef;
}
########################################################################################
#
# OWLCD_Notify - Implements Notify function
#
# Parameter hash = hash of device addressed
#
########################################################################################
sub OWLCD_Notify ($$) {
my ($hash,$dev) = @_;
if( grep(m/^(INITIALIZED|REREADCFG)$/, @{$dev->{CHANGED}}) ) {
OWLCD_Init($hash);
} elsif( grep(m/^SAVE$/, @{$dev->{CHANGED}}) ) {
}
}
########################################################################################
#
# OWLCD_Init - Implements Init function
#
# Parameter hash = hash of device addressed
#
########################################################################################
sub OWLCD_Init($) {
my ($hash) = @_;
#-- Initialization reading according to interface type
my $interface= $hash->{IODev}->{TYPE};
#-- OWX interface
if( $interface eq "OWX" ){
OWXLCD_InitializeDevice($hash);
#-- set backlight on
OWXLCD_SetFunction($hash,"bklon",0);
#-- erase all icons
OWXLCD_SetIcon($hash,0,0);
#-- erase alarm state
OWXLCD_SetFunction($hash,"gpio",15);
#-- Unknown interface
}else{
return "OWLCD: Wrong IODev type $interface";
}
$hash->{STATE} = "Initialized";
return undef;
}
#######################################################################################
#
# OWLCD_Attr - Set one attribute value for device
#
# Parameter hash = hash of device addressed
# a = argument array
#
########################################################################################
sub OWLCD_Attr(@) {
my ($do,$name,$key,$value) = @_;
my $hash = $defs{$name};
my $ret;
if ( $do eq "set") {
ARGUMENT_HANDLER: {
$key eq "IODev" and do {
AssignIoPort($hash,$value);
if( defined($hash->{IODev}) ) {
if ($main::init_done) {
return OWLCD_Init($hash);
}
}
last;
};
$key eq "lcdgeometry" and do {
if( $value eq "0-32-64-96" ){
@lcdpage = (0,32,64,96);
}elsif( $value eq "0-64-20-84" ){
@lcdpage = (0,64,20,84);
}
last;
};
$key eq "lcdcontroller" and do {
if( $value eq "KS0073," ){
$lcdcontroller = "KS0073";
}elsif( $value eq "HD44780" ){
$lcdcontroller = "HD44780";
}
last;
};
};
#} elsif ( $do eq "del" ) {
# ARGUMENT_HANDLER: {
# #-- empty so far
# }
}
return $ret;
}
########################################################################################
#
# OWLCD_Get - Implements GetFn function
#
# Parameter hash = hash of device addressed, a = argument array
#
########################################################################################
sub OWLCD_Get($@) {
my ($hash, @a) = @_;
my $reading = $a[1];
my $name = $hash->{NAME};
my $model = $hash->{OW_MODEL};
my $master = $hash->{IODev};
my $interface = $hash->{IODev}->{TYPE};
my $value = undef;
my $ret = "";
my $offset;
my $factor;
#-- check syntax
return "OWLCD: Get argument is missing @a"
if(int(@a) < 2);
#-- check argument
my $msg = "OWLCD: Get with unknown argument $a[1], choose one of ";
$msg .= "$_$gets{$_} " foreach (keys%gets);
return $msg
if(!defined($gets{$a[1]}));
#-- get id
if($a[1] eq "id") {
$value = $hash->{ROM_ID};
return "$name.id => $value";
}
#-- get gpio states
if($a[1] eq "gpio") {
#-- OWX interface
if( $interface eq "OWX" ){
$value = OWXLCD_Get($hash,"gpio");
#-- process result
if( $master->{ASYNCHRONOUS} ){
#return "OWLCD: $name getting gpio, please wait for completion";
return undef;
}else{
return "$name.gpio => $value";
}
#-- OWFS interface
}elsif( $interface eq "OWServer" ){
#-- Unknown interface
}else{
return "OWLCD: Get with wrong IODev type $interface";
}
}
#-- get counters
if($a[1] eq "counter") {
#-- OWX interface
if( $interface eq "OWX" ){
$value = OWXLCD_Get($hash,"counter");
#-- process result
if( $master->{ASYNCHRONOUS} ){
#return "OWLCD: $name getting counter, please wait for completion";
return undef;
}else{
return "$name.counter => $value";
}
#-- OWFS interface
}elsif( $interface eq "OWServer" ){
#-- Unknown interface
}else{
return "OWLCD: Get with wrong IODev type $interface";
}
}
#-- get version
if($a[1] eq "version") {
#-- OWX interface
if( $interface eq "OWX" ){
$value = OWXLCD_Get($hash,"version");
#-- process result
if( $master->{ASYNCHRONOUS} ){
#return "OWLCD: $name getting version, please wait for completion";
return undef;
}else{
return "$name.version => $owx_version (LCD firmware $value)";
}
#-- OWFS interface
}elsif( $interface eq "OWServer" ){
#-- Unknown interface
}else{
return "OWLCD: Get with wrong IODev type $interface";
}
}
#-- get EEPROM content
if($a[1] eq "memory") {
my $page = (defined $a[2] and $a[2] =~ m/\d/) ? int($a[2]) : 0;
#-- OWX interface
if( $interface eq "OWX" ){
$value = OWXLCD_GetMemory($hash,$page);
#-- process result
if( $master->{ASYNCHRONOUS} ){
#return "OWLCD: $name memory page $page, please wait for completion";
return undef;
}else{
return "$name $reading $page => $value";
}
#-- OWFS interface
}elsif( $interface eq "OWServer" ){
#-- Unknown interface
}else{
return "OWLCD: Get with wrong IODev type $interface";
}
}
}
#######################################################################################
#
# OWLCD_Set - Set one value for device
#
# Parameter hash = hash of device addressed
# a = argument array
#
########################################################################################
sub OWLCD_Set($@) {
my ($hash, @a) = @_;
my $interface = $hash->{IODev}->{TYPE};
my $key = $a[1];
my $value = $a[2];
my ($line,$icon,$i);
#-- for the selector: which values are possible
return join(" ", keys %sets)
if ( (@a == 2) && !(($key eq "reset") || ($key eq "test") || ($key eq "initialize")) );
#-- check argument
if( !defined($sets{$a[1]}) ){
return "OWLCD: Set with unknown argument $a[1]";
}
#-- check syntax for setting line
if( $key eq "line" ){
return "OWLCD: Set needs one or two parameters when setting line value: <#line> <string>"
if( int(@a)<3 );
$line = ($a[2] =~ m/\d/) ? $a[2] : 0;
$value = $a[3];
if( defined($value) ){
for( $i=4; $i< int(@a); $i++){
$value .= " ".$a[$i];
}
}else{
$value="";
}
#-- check syntax for setting memory
} elsif( $key eq "memory" ){
return "OWLCD: Set needs two parameters when setting memory page 0/1: <#page> <string>"
if( int(@a)<4 );
$line = ($a[2] =~ m/\d/) ? int($a[2]) : 0;
$value = $a[3];
for( $i=4; $i< int(@a); $i++){
$value .= " ".$a[$i];
}
#-- check syntax for setting icon
} elsif ( $key eq "icon" ){
if( ($a[2] ne "0") && ($a[2] ne "none") ){
return "OWLCD: Set needs two parameters when setting icon 0-16 value: <#icon> on/off/blink (resp. 0..5/off/blink for #16)"
if( (int(@a)!=4) );
$icon = ($a[2] =~ m/\d\d?/) ? $a[2] : 0;
$value = $a[3];
} else {
return "OWLCD: Set needs only one parameter when resetting icons"
if( (int(@a)!=3) );
$icon = 0;
$value = "OFF";
}
#-- check syntax for setting gpiobit
} elsif ( $key eq "gpiobit" ){
return "OWLCD: Set needs two parameters when setting gpiobit 1-3 value: <#bit> on/off"
if( (int(@a)!=4) );
return "OWLCD: Set gpiobit 1-3 value: <#bit> on/off only possible for bits 1-3"
if( $a[2]>3 || $a[2]<1 );
#-- check syntax for reset and test and initialize
} elsif ( ($key eq "reset") || ($key eq "test") || ($key eq "initialize")){
return "OWLCD: Set needs no parameters when setting $key value"
if( int(@a)!=2 );
#-- other syntax
} else {
return "OWLCD: Set needs one parameter when setting $key value"
if( int(@a)!=3 );
}
#-- define vars
my $name = $hash->{NAME};
my $model = $hash->{OW_MODEL};
#-- set gpio ports from all off = to all on = 7
if($key eq "gpio") {
#-- check value and write to device
return "OWLCD: Set with wrong target value for gpio port, must be 0 <= gpio <= 7"
if( ! ((int($value) >= 0) && (int($value) <= 7)) );
return OWXLCD_SetFunction($hash, "gpio", int($value));
}
#-- set single gpio bit from all off = 1 on = 0
# contribution from ext323
if($key eq "gpiobit") {
my $bit = $a[2];
$value = lc($a[3]);
$value =~ s/on/0/;
$value =~ s/off/1/;
my $vold = $value;
#-- check value and write to device
return "OWLCD: Set with wrong gpio bit number $bit, must be 1 <= bit <= 3"
if( ($bit < 1) || ($bit > 3) );
return "OWLCD: Set with wrong gpio bit value $value, must be 0=ON or 1=OFF"
if( $value !~ /[01]/ );
if( $value == 1 ){
$value = 1<<($bit-1) | ReadingsVal($name,"gpio",0);
}else{
$value = ~(1<<($bit-1)) & ReadingsVal($name,"gpio",0);
}
#-- OWX interface
if( $interface eq "OWX" ){
OWXLCD_SetFunction($hash,"gpio",$value);
}
}
#-- set LCD ON or OFF
if($key eq "lcd") {
#-- check value and write to device
if( uc($value) eq "ON"){
return OWXLCD_SetFunction($hash, "lcdon", 0);
}elsif( uc($value) eq "OFF" ){
return OWXLCD_SetFunction($hash, "lcdoff", 0);
} else {
return "OWLCD: Set with wrong value for lcd, must be on/off"
}
}
#-- set LCD Backlight ON or OFF
if($key eq "backlight") {
#-- check value and write to device
if( uc($value) eq "ON"){
return OWXLCD_SetFunction($hash, "bklon", 0);
}elsif( uc($value) eq "OFF" ){
return OWXLCD_SetFunction($hash, "bkloff", 0);
} else {
return "OWLCD: Set with wrong value for backlight, must be on/off"
}
}
#-- reset
if($key eq "reset") {
OWXLCD_SetFunction($hash,"reset",0);
OWXLCD_SetIcon($hash,0,0);
OWXLCD_SetFunction($hash,"gpio",15);
}
#-- set icon
if($key eq "icon") {
return "OWLCD: Wrong icon type, choose 0..16"
if( ( 0 > $icon ) || ($icon > 16) );
#-- check value and write to device
if( $icon == 16 ){
if( uc($value) eq "OFF" ){
return OWXLCD_SetIcon($hash, 16, 0);
}elsif( uc($value) eq "BLINK" ){
return OWXLCD_SetIcon($hash, 16, 6);
}elsif( ((int($value) > 0) && (int($value) < 6)) ){
return OWXLCD_SetIcon($hash, 16, int($value));
} else {
return "OWLCD: Set with wrong value for icon #16, must be 0..5/off/blink"
}
}else{
if( uc($value) eq "OFF"){
return OWXLCD_SetIcon($hash, $icon, 0);
}elsif( uc($value) eq "ON" ){
return OWXLCD_SetIcon($hash, $icon, 1);
}elsif( uc($value) eq "BLINK" ){
return OWXLCD_SetIcon($hash, $icon, 2);
} else {
return "OWLCD: Set with wrong value for icon $icon, must be on/off/blink"
}
}
}
#-- set a single LCD line
if($key eq "line") {
$value = OWXLCD_Trans($value);
return "OWLCD: Wrong line number, choose 0..".$lcdlines
if( ( 0 > $line ) || ($line > ($lcdlines-1)) );
return "OWLCD: Wrong line length, must be <= ".$lcdchars
if( length($value) > $lcdchars );
#-- check value and write to device
return OWXLCD_SetLine($hash,$line,$value);
}
#-- set memory page 0..6
if($key eq "memory") {
return "OWLCD: Wrong page number, choose 0..6"
if( (0 > $line) || ($line > 6) );
return "OWLCD: Wrong line length, must be <=16 "
if( length($value) > 16 );
#-- write to device
return OWXLCD_SetMemory($hash,$line,$value);
}
#-- start test
if($key eq "test") {
OWXLCD_SetLine($hash,0,"Hallo Welt");
OWXLCD_SetLine($hash,1,"Mary had a big lamb");
OWXLCD_SetLine($hash,2,"Solar 4.322 kW ");
OWXLCD_SetLine($hash,3,"\x5B\x5C\x5E\x7B\x7C\x7E\xBE");
return undef;
}
#-- start initialize
if($key eq "initialize") {
OWXLCD_InitializeDevice($hash);
return undef;
}
}
########################################################################################
#
# OWLCD_Undef - Implements UndefFn function
#
# Parameter hash = hash of device addressed
#
########################################################################################
sub OWLCD_Undef ($) {
my ($hash) = @_;
delete($modules{OWLCD}{defptr}{$hash->{OW_ID}});
RemoveInternalTimer($hash);
return undef;
}
########################################################################################
#
# OWXLCD_InitializeDevice - initialize the display
#
# Parameter hash = hash of device addressed
#
########################################################################################
sub OWXLCD_InitializeDevice($) {
my ($hash) = @_;
my $owx_dev = $hash->{ROM_ID};
my $master = $hash->{IODev};
my $interface = $hash->{IODev}->{TYPE};
my ($i,$data,$select, $res);
#-- supposedly we do not need to do anything with a HD44780
if( $lcdcontroller eq "HD44780"){
return undef;
#-- need some additional sequence for KS0073
}elsif ( $lcdcontroller eq "KS0073"){
#-- Function Set: 4 bit data size, RE => 0 = \x20
#OWXLCD_Byte($hash,"register",32);
#-- Entry Mode Set: cursor auto increment = \x06
#OWXLCD_Byte($hash,"register",6);
#-- Function Set: 4 bit data size, RE => 1, blink Enable = \x26
OWXLCD_Byte($hash,"register",38);
#-- Ext. Function Set: 4 line mode = \x09
OWXLCD_Byte($hash,"register",9);
#-- Function Set: 4 bit data size, RE => 0 = \x20
OWXLCD_Byte($hash,"register",32);
#-- Display ON/OFF: display on, cursor off, blink off = \x0C
OWXLCD_Byte($hash,"register",12);
#-- Clear Display
OWXLCD_Byte($hash,"register",1);
return undef;
#-- or else
} else {
return "OWXLCD: Wrong LCD controller type";
}
}
########################################################################################
#
# OWXLCD_BinValues - Process reading from one device - translate binary into raw
#
# Parameter hash = hash of device addressed
# context = mode for evaluating the binary data
# proc = processing instruction, also passed to OWX_Read.
# bitwise interpretation !!
# if 0, nothing special
# if 1 = bit 0, a reset will be performed not only before, but also after
# the last operation in OWX_Read
# if 2 = bit 1, the initial reset of the bus will be suppressed
# if 8 = bit 3, the fillup of the data with 0xff will be suppressed
# if 16= bit 4, the insertion will be at the top of the queue
# owx_dev = ROM ID of slave device
# crcpart = part of the data that needs to be part of the CRC check
# numread = number of bytes to receive
# res = result string
#
#
########################################################################################
sub OWXLCD_BinValues($$$$$$$) {
my ($hash, $context, $reset, $owx_dev, $crcpart, $numread, $res) = @_;
my ($ret,@data,$select);
my $change = 0;
my $master = $hash->{IODev};
my $name = $hash->{NAME};
my $msg;
OWX_WDBGL($name,5,"OWLCD: $name: BinValues called with context $context and data ",$res);
#=============== setline 2nd step ===============================
if( $context eq "setline" ) {
#-- issue the copy scratchpad to LCD command \x48
#### master slave context proc owx_dev data crcpart numread startread callback delay
# 16 ensures entry at top of queue, 8 prevents fillup, 1 for final reset
OWX_Qomplex($master, $hash, "sptolcd", 24, $owx_dev, "\x48", 0, -3, 0, undef, 0.01);
#=============== seteeprom 2nd step ===============================
}elsif( $context eq "seteeprom" ) {
#-- issue the copy scratchpad to EEPROM command \x39
#### master slave context proc owx_dev data crcpart numread startread callback delay
# 16 ensures entry at top of queue, 8 prevents fillup, 1 for final reset
OWX_Qomplex($master, $hash, "sptoeeprom", 24, $owx_dev,"\x39", 0, -9, 0, undef, 0.01);
#=============== eraseicon 2nd step ===============================
}elsif( $context eq "eraseicon.1" ) {
#-- SEGRAM addres to 0 = \x40,
$select = "\x10\x40";
#-- write 16 zeros to scratchpad
$select .= "\x4E\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
#### master slave context proc owx_dev data crcpart numread startread callback delay
# 16 ensures entry at top of queue, 8 prevents fillup, 1 for final reset
OWX_Qomplex($master, $hash, "eraseicon.2", 24, $owx_dev, $select, 0, 5, 0, \&OWXLCD_BinValues, 0.01);
#=============== eraseicon 3rd step ===============================
}elsif( $context eq "eraseicon.2" ) {
#-- issue the copy scratchpad to LCD command \x48
#### master slave context proc owx_dev data crcpart numread startread callback delay
# 16 ensures entry at top of queue, 8 prevents fillup, 1 for final reset
OWX_Qomplex($master, $hash, "endicon", 24, $owx_dev,"\x48", 0, 0, 0, \&OWXLCD_BinValues, 0.01);
#=============== seticon 2nd step ===============================
}elsif( $context eq "seticon.1" ) {
#-- SEGRAM addres to 0 = \x40 + icon address
$select = substr($crcpart,0,2);
#### master slave context proc owx_dev data crcpart numread startread callback delay
# 16 ensures entry at top of queue, 8 prevents fillup, 1 for final reset
OWX_Qomplex($master, $hash, "seticon.2", 24, $owx_dev, $select,$crcpart, 1, 0, \&OWXLCD_BinValues, 0.01);
#=============== seticon 2nd step ===============================
}elsif( $context eq "seticon.2" ) {
#-- data
$select = substr($crcpart,2);
#### master slave context proc owx_dev data crcpart numread startread callback delay
# 16 ensures entry at top of queue, 8 prevents fillup, 1 for final reset
OWX_Qomplex($master, $hash, "endicon", 24, $owx_dev, $select, 0, 1, 0, \&OWXLCD_BinValues, 0.01);
#=============== endicon ===============================
}elsif( $context eq "endicon" ) {
#-- issue the return to normal state command
#### master slave context proc owx_dev data crcpart numread startread callback delay
# 16 ensures entry at top of queue, 8 prevents fillup, 1 for final reset
OWX_Qomplex($master, $hash, "normal", 24, $owx_dev, "\x10\x20", 0, 1, 0, undef, 0.01);
#=============== prepare some get values ===============================
}elsif ( $context =~ /^get\.prep\.(\d+)/ ) {
my $len = $1;
#-- command hidden in crcpart, issueing read scratchpad command
#### master slave context proc owx_dev data crcpart numread startread callback delay
# 16 ensures entry at top of queue, 8 prevents fillup, 1 for final reset
OWX_Qomplex($master, $hash, "get.".$crcpart, 0, $owx_dev, "\xBE", 0, $len+1, 10, \&OWXLCD_BinValues, 0.01);
#=============== gpio ports ===============================
}elsif ( $context eq "get.gpio" ) {
@data= split(//,$res);
$ret = ord($data[0]) & 7;
readingsSingleUpdate($hash,"gpio",$ret,1);
#=============== gpio single bit ===============================
}elsif ( $context =~ /^get\.gpiobit\.(\d+)\.(\d+)/ ) {
$ret = ord($res) & 7;
my $bit = $1;
my $val = $2;
my $tar;
if( $val == 0){
$tar = $ret & (15-(1<<($bit-1)));
}else{
$tar = $ret | (1<<($bit-1)&15);
}
OWXLCD_SetFunction($hash,"gpio",$tar);
#=============== gpio counters ===============================
}elsif ( $context eq "get.counter" ) {
for( my $i=0; $i<4; $i++){
$data[$i] = ord(substr($res,2*$i+1,1))*256+ord(substr($res,2*$i,1));
}
$ret = join(" ",@data);
readingsSingleUpdate($hash,"counter",$ret,1);
#=============== version ===============================
}elsif ( $context eq "get.version" ) {
#TODO format version, raw value is unreadable
readingsSingleUpdate($hash,"version",$res,1);
#=============== memory ===============================
}elsif ( $context =~ /^get\.memory\.([\d]+)$/ ) {
readingsSingleUpdate($hash,"memory$1",unpack("H*",$res),1);
}
return undef;
}
########################################################################################
#
# OWXLCD_Byte - write a single byte to the LCD device
#
# Parameter hash = hash of device addressed
# cmd = register or data
# byte = byte
#
########################################################################################
sub OWXLCD_Byte($$$) {
my ($hash,$cmd,$byte) = @_;
my $master = $hash->{IODev};
my $interface = $hash->{IODev}->{TYPE};
my $owx_dev = $hash->{ROM_ID};
my $owx_rnf = substr($owx_dev,3,12);
my $owx_f = substr($owx_dev,0,2);
my ($select, $select2, $res, $res2, $res3, @data);
#=============== write to LCD register ===============================
if ( $cmd eq "register" ) {
#-- issue the read LCD register command \x10
$select = sprintf("\x10%c",$byte);
#=============== write to LCD data ===============================
}elsif ( $cmd eq "data" ) {
#-- issue the read LCD data command \x12
$select = sprintf("\x12%c",$byte);
#=============== wrong value requested ===============================
} else {
return "OWXLCD: Wrong byte write attempt";
}
#-- write to device
if( !$master->{ASYNCHRONOUS} ){
OWX_Reset($master);
$res=OWX_Complex($master,$owx_dev,$select,0);
#-- process results
if( $res eq 0 ){
return "OWLCD: Device $owx_dev not accessible for writing a byte";
}
}else{
#### master slave context proc owx_dev data crcpart numread startread callback delay
OWX_Qomplex($master, $hash, "writebyte", 8, $owx_dev,$select, 0, 1, 0, undef, 0.01);
}
return undef;
}
########################################################################################
#
# OWXLCD_Get - get values from the LCD device
#
# Parameter hash = hash of device addressed
# cmd = command string
#
########################################################################################
sub OWXLCD_Get(@) {
my ($hash,$cmd) = @_;
my $owx_dev = $hash->{ROM_ID};
my $master = $hash->{IODev};
my $interface = $hash->{IODev}->{TYPE};
my ($select, $select2, $len, $addr, $res, $res2);
#=============== fill scratch with gpio ports ===============================
if ( $cmd =~ /^gpio.*/ ) {
#-- issue the read GPIO command \x22 (1 byte)
$select = "\x22";
$len = 1;
#=============== fill scratch with gpio counters ===============================
}elsif ( $cmd eq "counter" ) {
#-- issue the read counter command \x23 (8 bytes)
$select = "\x23";
$len = 8;
#=============== fill scratch with version ===============================
}elsif ( $cmd eq "version" ) {
#-- issue the read version command \x41
$select = "\x41";
$len = 16;
} else {
return "OWXLCD: Wrong get attempt";
}
#-- write to device
if( !$master->{ASYNCHRONOUS} ){
OWX_Reset($master);
$res=OWX_Complex($master,$owx_dev,$select,0);
OWX_WDBGL($owx_dev,4,"OWXLCD_Get called OWX_Complex 1 w. result ",$res);
#-- process results
if( $res eq 0 ){
return "OWLCD: Device $owx_dev not accessible for reading";
}
#-- issue the read scratchpad command \xBE
$select2 = "\xBE";
#-- write to device
OWX_Reset($master);
$res=OWX_Complex($master,$owx_dev,$select2,$len);
OWX_WDBGL($owx_dev,4,"OWXLCD_Get called OWX_Complex 2 w. result ",$res);
#-- process results
if( $res eq 0 ){
return "OWLCD: Device $owx_dev not accessible for reading in 2nd step";
}
OWXLCD_BinValues($hash, "get.".$cmd, 1, $owx_dev, "\xBE", $len, substr($res,10));
return main::ReadingsVal($hash->{NAME},$cmd,"");
}else{
#### master slave context proc owx_dev data crcpart numread startread callback delay
OWX_Qomplex($master, $hash, "get.prep.".$len, 8, $owx_dev, $select, $cmd, 0, 0, \&OWXLCD_BinValues, undef);
return undef;
}
}
########################################################################################
#
# OWXLCD_GetMemory - get memory page from LCD device (EXPERIMENTAL)
#
# Parameter hash = hash of device addressed
# page = memory page address
#
########################################################################################
sub OWXLCD_GetMemory($$) {
my ($hash,$page) = @_;
my $master = $hash->{IODev};
my $interface = $hash->{IODev}->{TYPE};
my $owx_dev = $hash->{ROM_ID};
my $owx_rnf = substr($owx_dev,3,12);
my $owx_f = substr($owx_dev,0,2);
my ($select, $res, $res2, $res3);
#-- issue the match ROM command \x55 and the copy eeprom to scratchpad command \x4E
#Log 1," page read is ".$page;
$select = sprintf("\4E%c\x10\x37",$page);
#-- write to device
#-- OLD OWX interface
if( !$master->{ASYNCHRONOUS} ){
OWX_Reset($master);
$res=OWX_Complex($master,$owx_dev,$select,0);
#-- process results
if( $res eq 0 ){
return "OWLCD: Device $owx_dev not accessible for reading";
}
#-- issue the match ROM command \x55 and the read scratchpad command \xBE
$select = "\xBE";
#-- write to device
OWX_Reset($master);
$res=OWX_Complex($master,$owx_dev,$select,16);
#-- process results
if( $res eq 0 ){
return "OWLCD: Device $owx_dev not accessible for reading in 2nd step";
}
OWXLCD_BinValues($hash, "get.memory.$page", 1, $owx_dev, $select, 16, substr($res,11,16));
#-- process results (10 bytes or more have been sent)
#$res2 = substr($res,11,16);
#return $res2;
return main::ReadingsVal($hash->{NAME},"memory$page","");
#-- NEW OWX interface
}else{
#### master slave context proc owx_dev data crcpart numread startread callback delay
OWX_Qomplex($master, $hash, "get.prep.16", 8, $owx_dev, $select, "memory.$page", -2, 0, \&OWXLCD_BinValues, 0.01);
return undef;
}
}
########################################################################################
#
# OWXLCD_SetFunction - write state and values of the LCD device
#
# Parameter hash = hash of device addressed
# cmd = command string
# value = data value
#
########################################################################################
sub OWXLCD_SetFunction($$$) {
my ($hash,$cmd,$value) = @_;
#-- ID of the device, hash of the busmaster
my $owx_dev = $hash->{ROM_ID};
my $master = $hash->{IODev};
my ($select, $res, $res2, $res3, @data);
my $context = "setfunction";
my $len = 0;
#=============== set gpio ports ===============================
if ( $cmd eq "gpio" ) {
#-- issue the write GPIO command
# \x21 followed by the data value (= integer 0 - 7)
$select = sprintf("\x21%c",$value);
$len = 1;
readingsSingleUpdate($hash,"gpio",$value,1);
#=============== switch LCD on ===============================
}elsif ( $cmd eq "lcdon" ) {
#-- issue the lcd on cmd
$select = "\x03";
#=============== switch LCD off ===============================
}elsif ( $cmd eq "lcdoff" ) {
#-- issue the lcd off cmd
$select = "\x05";
#=============== switch LCD backlight on ===============================
}elsif ( $cmd eq "bklon" ) {
#-- issue the backlight on cmd
$select = "\x08";
#=============== switch LCD backlight off ===============================
}elsif ( $cmd eq "bkloff" ) {
#-- issue the backlight off cmd
$select = "\x07";
#=============== reset ===============================
}elsif ( $cmd eq "reset" ) {
#-- issue the clear LCD command
$select = "\x49";
#=============== wrong write attempt ===============================
} else {
return "OWXLCD: Wrong function selected";
}
#-- OLD OWX interface
if( !$master->{ASYNCHRONOUS} ){
#-- write to device
OWX_Reset($master);
$res=OWX_Complex($master,$owx_dev,$select,0);
#-- process results
if( $res eq 0 ){
return "OWLCD: Device $owx_dev not accessible for writing";
}
#-- NEW OWX interface
}else{
#### master slave context proc owx_dev data crcpart numread startread callback delay
OWX_Qomplex($master, $hash, $context, 8, $owx_dev, $select, 0, $len, 0, undef, 0.01);
}
return undef;
}
########################################################################################
#
# OWXLCD_SetIcon - set one of the icons
#
# Parameter hash = hash of device addressed
# icon = address of the icon used = 0,1 .. 16 (0 = all off)
# value = data value: 0 = off, 1 = on, 2 = blink
# for battery icon 16: 0 = off, 1 = empty ... 5 = full, 6 = empty blink
#
########################################################################################
sub OWXLCD_SetIcon($$$) {
my ($hash,$icon,$value) = @_;
#-- ID of the device, hash of the busmaster
my $owx_dev = $hash->{ROM_ID};
my $master = $hash->{IODev};
my ($i,$data,$select, $res);
#-- only for KS0073
if ( $lcdcontroller eq "KS0073"){
#-- write 16 zeros to erase all icons
if( $icon == 0){
#-- 4 bit data size, RE => 1, blink Enable = \x26
$select = "\x10\x26";
#-- OLD OWX interface
if( !$master->{ASYNCHRONOUS} ){
OWX_Reset($master);
$res=OWX_Complex($master,$owx_dev,$select,0);
#-- SEGRAM addres to 0 = \x40,
$select = "\x10\x40";
#-- write 16 zeros to scratchpad
$select .= "\x4E\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
OWX_Reset($master);
$res=OWX_Complex($master,$owx_dev,$select,0);
#-- issue the copy scratchpad to LCD command \x48
$select="\x48";
OWX_Reset($master);
$res=OWX_Complex($master,$owx_dev,$select,0);
#-- return to normal state
$select = "\x10\x20";
OWX_Reset($master);
$res=OWX_Complex($master,$owx_dev,$select,0);
#-- NEW OWX interface
}else{
#### master slave context proc owx_dev data crcpart numread startread callback delay
OWX_Qomplex($master, $hash, "eraseicon.1", 8, $owx_dev, $select, 0, 1, 0, \&OWXLCD_BinValues, 0.01);
}
} else {
#-- determine data value
if( int($icon) != 16 ){
if( $value == 0 ){
$data = 0;
} elsif ( $value == 1) {
$data = 16;
} elsif ( $value == 2) {
$data = 80;
} else {
return "OWXLCD: Wrong data value $value for icon $icon";
}
} else {
if( $value == 0 ){
$data = 0;
} elsif ( $value == 1) {
$data = 16;
} elsif ( $value == 2) {
$data = 24;
} elsif ( $value == 3) {
$data = 28;
} elsif ( $value == 4) {
$data = 30;
} elsif ( $value == 5) {
$data = 31;
} elsif ( $value == 6) {
$data = 80;
} else {
return "OWXLCD: Wrong data value $value for icon $icon";
}
}
#-- 4 bit data size, RE => 1, blink Enable = \x26
$select = "\x10\x26";
if( !$master->{ASYNCHRONOUS} ){
OWX_Reset($master);
$res=OWX_Complex($master,$owx_dev,$select,0);
#-- SEGRAM addres to 0 = \x40 + icon address
$select = sprintf("\x10%c",63+$icon);
OWX_Reset($master);
$res=OWX_Complex($master,$owx_dev,$select,0);
#-- data
$select = sprintf("\x12%c",$data);
OWX_Reset($master);
$res=OWX_Complex($master,$owx_dev,$select,0);
#-- return to normal state
$select = "\x10\x20";
OWX_Reset($master);
$res=OWX_Complex($master,$owx_dev,$select,0);
}else{
#### master slave context proc owx_dev data crcpart numread startread callback delay
OWX_Qomplex($master, $hash, "seticon.1", 8, $owx_dev, $select, sprintf("\x10%c",63+$icon).sprintf("\x12%c",$data), 1, 0, \&OWXLCD_BinValues, 0.01);
}
}
#-- or else
} else {
return "OWXLCD: Wrong LCD controller type";
}
}
########################################################################################
#
# OWXLCD_SetLine - set one of the display lines
#
# Parameter hash = hash of device addressed
# line = line number (0..3)
# msg = data string to be written
#
########################################################################################
sub OWXLCD_SetLine($$$) {
my ($hash,$line,$msg) = @_;
#-- ID of the device, hash of the busmaster
my $owx_dev = $hash->{ROM_ID};
my $master = $hash->{IODev};
my ($select, $res, $res2, $res3, $i, $msgA, $msgB);
$res2 = "";
$line = int($line);
$msg = defined($msg) ? $msg : "";
$msg = OWXLCD_Trans($msg);
#-- split if longer than 16 bytes, fill each with blanks
# has already been checked to be <= $lcdchars
if( $lcdchars > 16 ){
if( length($msg) > 16 ) {
$msgA = substr($msg,0,16);
$msgB = substr($msg,16,length($msg)-16);
for($i = 0;$i<$lcdchars-length($msg);$i++){
$msgB .= "\x20";
}
} else {
$msgA = $msg;
for($i = 0;$i<16-length($msg);$i++){
$msgA .= "\x20";
}
for($i = 0;$i<$lcdchars-16;$i++){
$msgB .= "\x20";
}
}
}else{
$msgA = $msg;
for($i = 0;$i<$lcdchars-length($msg);$i++){
$msgA .= "\x20";
}
$msgB = undef;
}
#-- issue the match ROM command \x55 and the write scratchpad command \x4E
# followed by LCD page address and the text
$select=sprintf("\x4E%c",$lcdpage[$line]).$msgA;
#-- OLD OWX interface
if( !$master->{ASYNCHRONOUS} ){
OWX_Reset($master);
$res=OWX_Complex($master,$owx_dev,$select,0);
#-- issue the copy scratchpad to LCD command \x48
OWX_Reset($master);
$res3=OWX_Complex($master,$owx_dev,"\x48",0);
#-- NEW OWX interface
}else{
#### master slave context proc owx_dev data crcpart numread startread callback delay
# 8= do not fill w. ff, 1=reset after
OWX_Qomplex($master, $hash, "setline", 8, $owx_dev, $select, 0, length($msgA)+1, 11, \&OWXLCD_BinValues, 0.01);
}
#-- if second string available:
if( defined($msgB) ) {
#-- issue the match ROM command \x55 and the write scratchpad command \x4E
# followed by LCD page address and the text
$select=sprintf("\x4E%c",$lcdpage[$line]+16).$msgB;
#-- OLD OWX interface
if( !$master->{ASYNCHRONOUS} ){
select(undef,undef,undef,0.05);
OWX_Reset($master);
$res2=OWX_Complex($master,$owx_dev,$select,0);
#-- issue the copy scratchpad to LCD command \x48
$select="\x48";
OWX_Reset($master);
$res3=OWX_Complex($master,$owx_dev,$select,0);
#-- NEW OWX interface
}else{
#### master slave context proc owx_dev data crcpart numread startread callback delay
# 8= do not fill w. ff
OWX_Qomplex($master, $hash, "setline", 8, $owx_dev, $select, 0, length($msgB)+1, 11, \&OWXLCD_BinValues, 0.05);
}
}
#-- process results
if( !$master->{ASYNCHRONOUS} ){
if( ($res eq 0) || ($res2 eq 0) || ($res3 eq 0) ){
return "OWLCD: Device $owx_dev not accessible for writing";
}
}
return undef;
}
########################################################################################
#
# OWXLCD_Trans - String translation helper
#
# Parameter msg = data string to be written
#
########################################################################################
sub OWXLCD_Trans($) {
my ($msg) = @_;
#-- replace umlaut chars for special codepage of KS0073
if( $lcdcontroller eq "KS0073") {
$msg =~ s/ä/\x7B/g;
$msg =~ s/ö/\x7C/g;
$msg =~ s/ü/\x7E/g;
$msg =~ s/Ä/\x5B/g;
$msg =~ s/Ö/\x5C/g;
$msg =~ s/Ü/\x5E/g;
$msg =~ s/ß/\xBE/g;
$msg =~ s/°/\x80/g;
#-- replace umlaut chars for special codepage of HD44780
}elsif( $lcdcontroller eq "HD44780") {
$msg =~ s/ä/\xE1/g;
$msg =~ s/ö/\xEF/g;
$msg =~ s/ü/\xF5/g;
$msg =~ s/Ü/\x03/g;
$msg =~ s/Ö/\x02/g;
$msg =~ s/Ä/\x01/g;
$msg =~ s/ß/\xE2/g;
$msg =~ s/°/\xDF/g;
}
#-- replace other special chars
$msg =~s/_/\xC4/g;
return $msg;
}
########################################################################################
#
# OWXLCD_SetMemory - set internal nonvolatile memory
#
# Parameter hash = hash of device addressed
# page = page number (0..14)
# msg = data string to be written
#
########################################################################################
sub OWXLCD_SetMemory($$$) {
my ($hash,$page,$msg) = @_;
#-- ID of the device, hash of the busmaster
my $owx_dev = $hash->{ROM_ID};
my $master = $hash->{IODev};
my ($select, $res, $res2, $res3, $i, $msgA);
$page = int($page);
$msg = defined($msg) ? $msg : "";
#-- fillup with blanks
$msgA = $msg;
for($i = 0;$i<16-length($msg);$i++){
$msgA .= "\x20";
}
#-- issue the match ROM command \x55 and the write scratchpad command \x4E
# followed by LCD page address and the text
#Log 1," page written is ".$page;
$select=sprintf("\x4E\%c",$page).$msgA;
#-- OLD OWX interface
if( !$master->{ASYNCHRONOUS} ){
OWX_Reset($master);
$res=OWX_Complex($master,$owx_dev,$select,0);
#-- issue the copy scratchpad to EEPROM command \x39
$select = "\x39";
OWX_Reset($master);
$res2=OWX_Complex($master,$owx_dev,$select,0);
#-- process results
if( ($res eq 0) || ($res2 eq 0) ){
return "OWLCD: Device $owx_dev not accessible for writing";
}
#-- NEW OWX interface
}else{
#### master slave context proc owx_dev data crcpart numread startread callback delay
OWX_Qomplex($master, $hash, "seteeprom", 8, $owx_dev, $select, 0, 17, 0, \&OWXLCD_BinValues, 0.01);
}
return undef;
}
1;
=pod
=item device
=item summary to commmunicate with the 1-Wire LCD hardware
=begin html
<a name="OWLCD"></a>
<h3>OWLCD</h3>
<ul>
<p>FHEM module to commmunicate with the <a
href="http://www.louisswart.co.za/1-Wire_Overview.html">1-Wire LCD controller</a>
from Louis Swart (1-Wire family id FF). See also the corresponding <a
href="http://fhemwiki.de/wiki/1-Wire_Textdisplay">Wiki page.</a><br /><br />
Note:<br /> This 1-Wire module so far works only with the OWX interface module. Please
define an <a href="#OWX">OWX</a> device first. <br /></p>
<br /><h4>Example</h4>
<p>
<code>define OWX_LCD OWLCD 9F0700000100</code>
<br />
</p>
<br />
<a name="OWLCDdefine"></a>
<h4>Define</h4>
<p>
<code>define &lt;name&gt; OWLCD &lt;id&gt;</code> or <br/>
<code>define &lt;name&gt; OWLCD FF.&lt;id&gt;</code>
<br /><br /> Define a 1-Wire LCD device.<br /><br /></p>
<ul>
<li>
<code>&lt;id&gt;</code>
<br />12-character unique ROM id of the converter device without family id and CRC
code </li>
</ul>
<br />
<a name="OWLCDset"></a>
<h4>Set</h4>
<ul>
<li><a name="owlcd_icon">
<code>set &lt;name&gt; icon &lt;int&gt; on|off|blink</code></a><br /> Set one of
the icons 0..14 on, off or blinking</li>
<li><a name="owlcd_icon2">
<code>set &lt;name&gt; icon 15 0..6</code></a><br /> Set icon 15 to one of its
values</li>
<li><a name="owlcd_icon3">
<code>set &lt;name&gt; icon none</code></a><br /> Set all icons off</li>
<li><a name="owlcd_line">
<code>set &lt;name&gt; line &lt;int&gt; &lt;string&gt;</code></a><br /> Write
LCD line 0..3 with some content </li>
<li><a name="owlcd_memory">
<code>set &lt;name&gt; memory &lt;page&gt; &lt;string&gt;</code></a><br />Write
memory page 0..6</li>
<li><a name="owlcd_gpio">
<code>set &lt;name&gt; gpio &lt;value&gt;</code></a><br />Write state for all
three gpio pins (value = 0..7, for each bit 0=ON, 1=OFF)</li>
<li><a name="owlcd_gpiobit">
<code>set &lt;name&gt; gpiobit &lt;bit&gt; &lt;value&gt;</code></a><br />Write state for gpio pin no. 1..3,
possible values are 0=ON, 1=OFF</li>
<li><a name="owlcd_bl">
<code>set &lt;name&gt; backlight ON|OFF</code></a><br />Switch backlight on or
off</li>
<li><a name="owlcd_lcd">
<code>set &lt;name&gt; lcd ON|OFF</code></a><br />Switch LCD power on or
off</li>
<li><a name="owlcd_reset">
<code>set &lt;name&gt; reset</code></a><br />Reset the display</li>
<li><a name="owlcd_test">
<code>set &lt;name&gt; test</code></a><br />Test the display</li>
</ul>
<br />
<a name="owlcdget"></a>
<h4>Get</h4>
<ul>
<li><a name="owlcd_id">
<code>get &lt;name&gt; id</code></a>
<br /> Returns the full 1-Wire device id OW_FAMILY.ROM_ID.CRC </li>
<li><a name="owlcd_memory2">
<code>get &lt;name&gt; memory &lt;page&gt;</code></a><br />Read memory page 0..6 </li>
<li><a name="owlcd_gpio2">
<code>get &lt;name&gt; gpio</code></a><br />Obtain state of all four input
channels (15 = all off, 0 = all on)</li>
<li><a name="owlcd_counter">
<code>get &lt;name&gt; counter</code></a><br />Obtain state of all four input
counters (4 x 16 Bit)</li>
<li><a name="owlcd_version">
<code>get &lt;name&gt; version</code></a><br />Obtain firmware version of the
controller</li>
</ul>
<br />
<a name="owlcdattr"></a>
<h4>Attributes</h4>
<ul>
<li><a name="owlcd_lcdgeometry">
<code>attr &lt;name&gt; lcdgeometry &lt;string&gt;</code></a><br />
LCD geometry, values are 0-32-64-96 (default) or 0-64-20-84</li>
<li><a name="owlcd_lcdgcontroller">
<code>attr &lt;name&gt; lcdcontroller &lt;string&gt;</code></a><br />
LCD geometry, values are KS0073 (default) HD44780</li>
<li><a href="#readingFnAttributes">readingFnAttributes</a></li>
</ul>
</ul>
=end html
=cut