Tag Archives: Domoticz

Creating a custom HTML front end for Domotiz Part 3 – YouTube companion article

We’re going to get a bit more clever now. When we have taught Domoticz a list of devices (be they switches or lights or door contacts) we may want to list them all in one go without manually entering a long list of html for each device. Also, if we can get the HTML front end to gather all the information about each switch, it means that we can update the contents of the buttons automatically, for example if we change the name of a device, it will automatically update in the HTML front end.

I’ve created some code to do this and the commentary on this is over on my YouTube video.

Here’s the code and two css files that you’ll need. Please note that the css files contain more than is needed at the moment: however the css will be needed in future articles.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<head>
<title>Home Control</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=0" />
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black" />

<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<meta name="description" content="" />
<meta name="keywords" content="" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
	<link rel="shortcut icon" href="favicon.ico" />
	<link rel="apple-touch-icon" href="iphone-icon.png"/>
	<link rel="icon" sizes="196x196" href="logo.png">
	<link rel="icon" sizes="192x192" href="logo192.png">
	<link rel="stylesheet" media="(orientation: portrait)" href="portrait.css">
	<link rel="stylesheet" media="(orientation: landscape)" href="landscape.css">
	<link href="https://fonts.googleapis.com/css?family=Baloo|Comfortaa" rel="stylesheet">

<script language="JavaScript" type="text/JavaScript">
<!--
<!--

var devicestodisplay =[36,35,31,141,32,134,132,29,136,140,33,1617];
var nod=0;
var domoticzurl="192.168.1.163";
var domoticzport="8080";

function speak(textToSpeak) {
 // Create a new instance of SpeechSynthesisUtterance
 var newUtterance = new SpeechSynthesisUtterance();

 // Set the text
 newUtterance.text = textToSpeak;

 // Add this text to the utterance queue
 window.speechSynthesis.speak(newUtterance);
}

function switchon(devicecode){
 execute('PUT', 'http://'+domoticzurl+':'+domoticzport+'/json.htm?type=command&param=switchlight&idx='+devicecode+'&switchcmd=On', '');
}

function switchoff(devicecode){
 execute('PUT', 'http://'+domoticzurl+':'+domoticzport+'/json.htm?type=command&param=switchlight&idx='+devicecode+'&switchcmd=Off', '');
}

function toggle(devicecode){
 execute('PUT', 'http://'+domoticzurl+':'+domoticzport+'/json.htm?type=command&param=switchlight&idx='+devicecode+'&switchcmd=Toggle', '');
}

function dim(devicecode,dimlevel){
 execute('PUT', 'http://'+domoticzurl+':'+domoticzport+'/json.htm?type=command&param=switchlight&idx='+devicecode+'&switchcmd=Set%20Level&level='+dimlevel, '');
}


function execute($method,$url,$message){
xmlhttp=new XMLHttpRequest();
xmlhttp.open($method,$url,true)
xmlhttp.send($message);
}
window.onload = function() {
 // all of your code goes in here
 // it runs after the DOM is built

 //updateweather();
 getalldevices();
 updatealldevices();
 }
 
window.setInterval(function(){
 updatealldevices();
 }, 1000);



function updatedevice(idx){
 var location="DEVICE"+idx;
 console.log("checking status of idx "+idx);
 var xmlhttp = new XMLHttpRequest();
 var url = 'http://'+domoticzurl+':'+domoticzport+'/json.htm?type=devices&rid='+idx;
 var onoff;
 xmlhttp.onreadystatechange = function() {
 if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
 var myArr = JSON.parse(xmlhttp.responseText);
 onoff = myArr.result[0].Status;
 devicename = myArr.result[0].Name;
 // myFunction(myArr);
 document.getElementById(location).innerHTML='<span class="device">'+devicename+'</span>';
 }
 if (onoff == "On") {
 document.getElementById(location).style.background = "red";
 } 
 if (onoff == "Off") {
 document.getElementById(location).style.background = "grey";
 }
 if (onoff == "Open") {
 document.getElementById(location).style.background = "red";
 } 
 if (onoff == "Closed") {
 document.getElementById(location).style.background = "grey";
 }
 }
xmlhttp.open("GET", url, true);
xmlhttp.send();
}

function getalldevices(){
fLen = devicestodisplay.length;
for (i = 0; i < fLen; i++) {
 preparediv(devicestodisplay[i]);
 getdevice(devicestodisplay[i]);
 }
}

function preparediv(deviceidx){
nod=nod+1;
var div = document.createElement("div");
div.className = 'devicecontainer';
div.id = "DEVICE"+deviceidx;
document.getElementById("devicesdiv").appendChild(div);
}

function updatealldevices(){
fLen = devicestodisplay.length;
for (i = 0; i < fLen; i++) {
 updatedevice(devicestodisplay[i]);
 }
}

function getdevice(idx){
 console.log("getting device idx" + idx);
 var xmlhttp = new XMLHttpRequest();
 var url = "http://"+domoticzurl+":"+domoticzport+"/json.htm?type=devices&rid="+idx;
 xmlhttp.onreadystatechange = function() {
 console.log(devicestodisplay[i] + " " +xmlhttp.readyState)
 if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
 var myArr = JSON.parse(xmlhttp.responseText);
 devicename = myArr.result[0].Name;
 devicestatus = myArr.result[0].Status;
 console.log(devicename + "(" + devicestatus+")");
 adddevice(idx,devicename,devicestatus);
 }
 }
xmlhttp.open("GET", url, true);
xmlhttp.send();
}

function adddevice(deviceidx,devicenametext,devicestatus){
nod=nod+1;
var div = document.createElement("div");
//div.style.width = "100px";
//div.style.height = "100px";
//div.style.background = "red";
//div.style.color = "white";
div.className = 'devicecontainer';
div.innerHTML = devicenametext;
div.id = "DEVICE"+deviceidx;

if (devicestatus=="On"){
 div.style.background = "red";
}

if (devicestatus=="Open"){
 div.style.background = "red";
}

if (devicestatus=="Off"){
 div.style.background = "grey";
}

if (devicestatus=="Closed"){
 div.style.background = "grey";
}

console.log("-------------"+div.id);
//document.getElementById("devicesdiv").appendChild(div);
document.getElementById(div.id).addEventListener('click', function() {
 { toggle(deviceidx); };
}, false);
}

function myFunction(arr) {
 var out = "";
 out += arr[0].result.Status;
 document.getElementById("id01").innerHTML = out;
}

//-->
</script>


<body>

<audio id="scene" src="assets/sounds/beep2.mp3" preload="auto"></audio>
<div align="left" class="toplinks">
<a href="index.htm"><span class="menutext">Home</span></a>
<a href="lights.htm"><span class="menutext">Lights</span></a>
<a href="devices.htm"><span class="menutext">Devices</span></a>
<a href="audiotrial.htm"><span class="menutext">Audio</span></a>
<a href="climate.htm"><span class="menutext">Environment</span></a>
<a href="security.htm"><span class="menutext">Security</span></a>
<a href="activities.htm"><span class="menutext">Other screens</span></a></div>
<div id="notification" align="center" class="notificationpane" onClick="clearnotification(11);"></div>
<div id="devicesdiv"></div>
</body>
</html>

Here’s the landscape.css file


body {
background-color:#000000;
font-family: 'Comfortaa', sans-serif;
margin: 0 0 0 0;
padding: 0 0 0 0 ;
}

.back-to-top {
background: none;
margin: 0;
position: fixed;
bottom: 50px;
right: 20px;
width: 150px;
height: 50px;
z-index: 100;
display: none;
text-decoration: none;
}

.back-to-top i {
font-size: 60px;
}

.timerselecttext {
font-size: 60px;
color:#FFFFFF;
}

.clockdisplay {
font-size: 250px;
color:grey;
}

div.clocktext {
font-size: 100px;
color:#000000;
}

div.weathertext {
font-size: 70px;
color:#000000;
}


div.standardcontainer {
background-color:grey;
position:relative;
width:25%;
height:25vh;
float:left;
padding-top:10px;
overflow:auto;
color:white;
font-size: 4vw;
text-align:center;
box-shadow:inset 0px 0px 0px 1px black;
}

div.doublecontainer {
background-color:grey;
position:relative;
width:50%;
height:25vh;
float:left;
padding-top:10px;
overflow:auto;
color:white;
font-size: 4vw;
text-align:center;
box-shadow:inset 0px 0px 0px 1px black;
}

div.devicecontainer {
background-color:grey;
width:25%;
height:12vh;
float:left;
padding-top:10px;
overflow:auto;
color:white;
font-size: 2vw;
box-shadow:inset 0px 0px 0px 1px black;
}


div.albumcontainer {
width:28vw;
height:28vw;
float:left;
padding-top:0px;
color:white;
font-size: 3vw;
box-shadow:inset 0px 0px 0px 1px black;
}

div.trackcontainer {
width:70vw;
height:10vw;
float:left;
padding-top:0px;
color:white;
font-size: 3vw;
box-shadow:inset 0px 0px 0px 1px black;
}

div.audiocontrols {
background-color:grey;
width:100vw;
height:10vw;
float:left;
padding-top:0px;
color:white;
font-size: 3vw;
box-shadow:inset 0px 0px 0px 1px black;
}

div.audioactivitycontainer {

width:70vw;
height:10vw;
float:left;
padding-top:0px;
color:white;
font-size: 3vw;
box-shadow:inset 0px 0px 0px 1px black;
}

div.camera {
background-color:grey;
width:100vw;
float:left;
padding-top:0px;
color:white;
font-size: 3vw;
box-shadow:inset 0px 0px 0px 1px black;
}

div.camcontrols {
background-color:green;
width:300px;
float:right;
padding-top:0px;
color:white;
font-size: 3vw;
box-shadow:inset 0px 0px 0px 1px black;
}

span {
background-color: #ffffff;
color: #75099b;
font-size:20px;
display: inline-block;
padding: 3px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}

div.nightclock {
background-color:#333333;
position:relative;
width:100%;
float:left;
padding-top:10px;
overflow:auto;
color:#666666;
font-size: 5vw;
text-align:center;
box-shadow:inset 0px 0px 0px 1px black;
}

span.title {
background-color:#666666;
color:#FFFFFF;
font-size:35px;
display: inline-block;
padding: 10px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}

span.timertext {
background-color:green;
color:#FFFFFF;
font-size:70px;
display: inline-block;
padding: 10px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}

span.playstate {
background-color:green;
color:#FFFFFF;
font-size:12px;
display: inline-block;
padding: 10px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}

span.temptext {
background-color:green;
color:#FFFFFF;
font-size:40px;
display: inline-block;
padding: 10px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}

span.roomname {
background-color:green;
color:#FFFFFF;
font-size:40px;
display: inline-block;
padding: 10px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}

span.lightroom {
background-color:green;
color:#FFFFFF;
font-size:30px;
display: inline-block;
padding: 10px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}


span.device {
background-color:#666666;
color:#FFFFFF;
font-size:20px;
display: inline-block;
padding: 3px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}

span.sensor {
background-color:#666666;
color:#FFFFFF;
font-size:18px;
display: inline-block;
padding: 3px 10px;
margin: 0px 5px;
font-weight: bold;
border-radius: 5px;
}


span.screentitle {
background-color:#666666;
font-family: 'Baloo', sans-serif;
color:#FFFFFF;
font-size:30px;
display: inline-block;
padding: 10px 10px;
margin: 5px;
border-radius: 5px;
}

span.menutext {
background-color:#0066FF;
color:#FFFFFF;
font-size:24px;
display: inline-block;
padding: 10px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}

span.datetime {
background-color:#009900;
color:#FFFFFF;
font-size:16px;
display: inline-block;
padding: 5px 5px;
margin: 0px 5px;
border-radius: 5px;
}


div.audioroomcontainer {
background-color:#66FF99;
float:left;
height:200px;
padding-top:10px;
overflow:auto;
font-size: 25px;
margin: 0 0 10px 10px;
}

div.nightmodecontainer {
background-color:#666666;
width:150px;
float:left;
height:200px;
padding-top:10px;
overflow:auto;
font-size: 25px;
margin: 0 0 10px 10px;
}


div.notificationpane {
background-color:#FFFFCC;
width:100%;
font-size: 2.5vw;
box-shadow:inset 0px 0px 0px 1px black;
}

div.nightnotificationpane {
background-color:grey;
width:100%;
font-size: 2.5vw;
box-shadow:inset 0px 0px 0px 1px black;
}

div.toplinks {
background-color:#66CCFF;
top:0px;
left:0px;
width:100%;
font-size: 30px;
box-shadow:inset 0px 0px 0px 1px black;
}

div.popuppanel {
background-color:grey;
width:100vw;
float:left;
padding-top:10px;
overflow:auto;
color:white;
font-size: 3vw;
box-shadow:inset 0px 0px 0px 1px black;
}

and here’s the portrait.css file


body {
background-color:#000000;
font-family: 'Comfortaa', sans-serif;
margin: 0 0 0 0;
padding: 0 0 0 0 ;
}

.back-to-top {
background: none;
margin: 0;
position: fixed;
bottom: 50px;
right: 20px;
width: 150px;
height: 50px;
z-index: 100;
display: none;
text-decoration: none;
}

.back-to-top i {
font-size: 60px;
}

.timerselecttext {
font-size: 60px;
color:#FFFFFF;
}

.clockdisplay {
font-size: 200px;
color:#000000;
}

div.clocktext {
font-size: 100px;
color:#000000;
}

div.weathertext {
font-size: 70px;
color:#000000;
}


div.nightclock {
background-color:#333333;
position:relative;
width:100%;
float:left;
padding-top:10px;
overflow:auto;
color:#666666;
font-size: 5vw;
text-align:center;
box-shadow:inset 0px 0px 0px 1px black;
}

div.doublecontainer {
background-color:grey;
position:relative;
width:100%;
height:25vh;
float:left;
padding-top:10px;
overflow:auto;
color:white;
font-size: 4vw;
text-align:center;
box-shadow:inset 0px 0px 0px 1px black;
}

div.standardcontainer {
background-color:grey;
position:relative;
width:50%;
height:15vh;
float:left;
padding-top:10px;
overflow:auto;
color:white;
font-size: 2vw;
text-align:center;
box-shadow:inset 0px 0px 0px 1px black;
}

div.nightclock {
background-color:#333333;
position:relative;
width:100%;
float:left;
padding-top:10px;
overflow:auto;
color:#666666;
font-size: 5vw;
text-align:center;
box-shadow:inset 0px 0px 0px 1px black;
}

div.devicecontainer {
background-color:grey;
width:50%;
height:10vh;
float:left;
padding-top:10px;
overflow:auto;
color:white;
font-size: 2vw;
box-shadow:inset 0px 0px 0px 1px black;
}


div.albumcontainer {
background-color:grey;
width:100vw;
height:100vw;
float:left;
padding-top:0px;
color:white;
font-size: 3vw;
box-shadow:inset 0px 0px 0px 1px black;
}

div.trackcontainer {
background-color:grey;
width:100vw;
float:left;
padding-top:0px;
color:white;
font-size: 3vw;
box-shadow:inset 0px 0px 0px 1px black;
}

div.audiocontrols {
background-color:grey;
width:100vw;
float:left;
padding-top:0px;
color:white;
font-size: 3vw;
box-shadow:inset 0px 0px 0px 1px black;
}

div.audioactivitycontainer {
background-color:grey;
width:100vw;
float:left;
padding-top:0px;
color:white;
font-size: 3vw;
box-shadow:inset 0px 0px 0px 1px black;
}

div.camera {
background-color:grey;
width:100vw;
float:left;
padding-top:0px;
color:white;
font-size: 3vw;
box-shadow:inset 0px 0px 0px 1px black;
}

div.camcontrols {
background-color:green;
width:100vw;
float:right;
padding-top:0px;
color:white;
font-size: 3vw;
box-shadow:inset 0px 0px 0px 1px black;
}

span.menutext {
background-color: #ffffff;
color: #75099b;
font-size:3vw;
display: inline-block;
padding: 3px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}

span {
background-color: #ffffff;
color: #75099b;
font-size:18px;
display: inline-block;
padding: 3px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}

span.title {
background-color:#666666;
color:#FFFFFF;
font-size:18px;
display: inline-block;
padding: 3px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}

span.timertext {
background-color:green;
color:#FFFFFF;
font-size:20px;
display: inline-block;
padding: 10px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}

span.lightroom {
background-color:green;
color:#FFFFFF;
font-size:16px;
display: inline-block;
padding: 10px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}
span.temptext {
background-color:green;
color:#FFFFFF;
font-size:20px;
display: inline-block;
padding: 10px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}
span.device {
background-color:#666666;
color:#FFFFFF;
font-size:18px;
display: inline-block;
padding: 3px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}

span.screentitle {
background-color:#666666;
font-family: 'Baloo', sans-serif;
color:#FFFFFF;
font-size:18px;
display: inline-block;
padding: 5px 5px;
margin: 5px;
border-radius: 5px;
}


span.menutext {
background-color:#0066FF;
color:#FFFFFF;
font-size:24px;
display: inline-block;
padding: 3px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}

span.datetime {
background-color:#009900;
color:#FFFFFF;
font-size:12px;
display: inline-block;
padding: 5px 5px;
margin: 0px 5px;
border-radius: 5px;
}

span.sensor {
background-color:#666666;
color:#FFFFFF;
font-size:14px;
display: inline-block;
padding: 3px 10px;
margin: 0px 5px;
font-weight: bold;
border-radius: 5px;
}

div.audioroomcontainer {
background-color:#66FF99;
float:left;
height:200px;
padding-top:10px;
overflow:auto;
font-size: 25px;
margin: 0 0 10px 10px;
}

div.nightmodecontainer {
background-color:#666666;
width:150px;
float:left;
height:200px;
padding-top:10px;
overflow:auto;
font-size: 25px;
margin: 0 0 10px 10px;
}


div.notificationpane {
background-color:#FFFFCC;
width:100%;
font-size: 16px;
box-shadow:inset 0px 0px 0px 1px black;
}


div.toplinks {
background-color:#66CCFF;
top:0px;
left:0px;
width:100%;
font-size: 30px;
overflow:scroll;
box-shadow:inset 0px 0px 0px 1px black;
}

div.popuppanel {
background-color:grey;
width:100vw;
float:left;
padding-top:10px;
overflow:auto;
color:white;
font-size: 2vw;
box-shadow:inset 0px 0px 0px 1px black;
}

Creating a custom HTML front end for Domoticz part 2 – YouTube companion article

This article just shows the code that accompanies the next in the multi-part series explaining how I created my (reasonably popular!) HTML front end.

The icon I used can be downloaded from Flaticon.com but remember to download two versions, one you should rename dehumidifier-on.png and one dehumidifier-off.png

Here’s the code.

index.htm

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<head>
<title>Home Control</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
		<meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=0" />
		<meta name="apple-mobile-web-app-capable" content="yes" />
		<meta name="mobile-web-app-capable" content="yes" />
		<meta name="apple-mobile-web-app-status-bar-style" content="black" />

		<meta http-equiv="content-type" content="text/html; charset=utf-8" />
		<meta name="description" content="" />
		<meta name="keywords" content="" />
		<meta http-equiv="X-UA-Compatible" content="IE=edge" />
			<link rel="shortcut icon" href="favicon.ico" />
			<link rel="apple-touch-icon" href="iphone-icon.png"/>
			<link rel="icon" sizes="196x196" href="logo.png">
			<link rel="icon" sizes="192x192" href="logo192.png">
			<link rel="stylesheet" media="(orientation: portrait)" href="portrait.css">
			<link rel="stylesheet" media="(orientation: landscape)" href="landscape.css">

  	<link href="https://fonts.googleapis.com/css?family=Baloo|Comfortaa" rel="stylesheet">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>

<script language="JavaScript" type="text/JavaScript">

var domoticzurl="192.168.1.163"

function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}
function speak(textToSpeak) {
   // Create a new instance of SpeechSynthesisUtterance
   var newUtterance = new SpeechSynthesisUtterance();

   // Set the text
   newUtterance.text = textToSpeak;

   // Add this text to the utterance queue
   window.speechSynthesis.speak(newUtterance);
}

function switchon(devicecode){
	execute('PUT', 'http://' + domoticzurl + ':8080/json.htm?type=command&param=switchlight&idx='+devicecode+'&switchcmd=On', '');
}

function switchoff(devicecode){
	execute('PUT', 'http://' + domoticzurl + ':8080/json.htm?type=command&param=switchlight&idx='+devicecode+'&switchcmd=Off', '');
}

function toggle(devicecode){
	execute('PUT', 'http://' + domoticzurl + ':8080/json.htm?type=command&param=switchlight&idx='+devicecode+'&switchcmd=Toggle', '');
}

function dim(devicecode,dimlevel){
	execute('PUT', 'http://' + domoticzurl + ':8080/json.htm?type=command&param=switchlight&idx='+devicecode+'&switchcmd=Set%20Level&level='+dimlevel, '');
}


function execute($method,$url,$message){
xmlhttp=new XMLHttpRequest();
xmlhttp.open($method,$url,true)
xmlhttp.send($message);
}

function toggleDiv(divId) {
   $("#"+divId).toggle(100);
}

function hideDiv(divId) {
   $("#"+divId).hide();
}
	
window.addEventListener("load", function(){
});;

function hideallDivs() {
    hideDiv("lights");
	hideDiv("devices");
}

//the following functions will run every second (due to the 1000 at the end).
window.setInterval(function(){
	updatedevice(36,'dehumidifier',"dehumidifier-on.png","dehumidifier-off.png");
	}, 1000);


// the following function checks to see if the idx is "on" or "off" and updates the image accordingly
function updatedevice(idx,location,onimage,offimage){
	console.log("checking status of idx "+idx);
	var xmlhttp = new XMLHttpRequest();
	var url = "http://"+domoticzurl+":8080/json.htm?type=devices&rid="+idx;
	var onoff;
	xmlhttp.onreadystatechange = function() {
    	if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
        	var myArr = JSON.parse(xmlhttp.responseText);
			onoff = myArr.result[0].Status;
       // myFunction(myArr);
    	}
		if (onoff == "On") {
		document.getElementById(location).src = onimage;
		} 
		if (onoff == "Off") {
		document.getElementById(location).src = offimage;
		}
		if (onoff == "Open") {
		document.getElementById(location).src = onimage;
		} 
		if (onoff == "Closed") {
		document.getElementById(location).src = offimage;
		}
	}
xmlhttp.open("GET", url, true);
xmlhttp.send();
}


</script>

</head>

<body>

<a href="javascript:;"  onclick="toggleDiv('lights');"><span class="navtitle">Lights</span></a>
<div id="lights" class="navlights">
Desk Lamp

<a href="javascript:;" onclick="dim(594,16);toggleDiv('lights');"><span class="buttontext">Max</span></a>
<a href="javascript:;" onclick="dim(594,12);toggleDiv('lights');"><span class="buttontext">75%</span></a>
<a href="javascript:;" onclick="dim(594,8);toggleDiv('lights');"><span class="buttontext">50%</span></a>
<a href="javascript:;" onclick="dim(594,4);toggleDiv('lights');"><span class="buttontext">25%</span></a>
<a href="javascript:;" onclick="switchoff(594);toggleDiv('lights');"><span class="buttontext">Off</span></a>

<hr width="90%" style="dashed" color="#FFFFFF" size="2">

Ceiling Lamp

<a href="javascript:;" onclick="dim(81,100);toggleDiv('lights');"><span class="buttontext">Max</span></a>
<a href="javascript:;" onclick="dim(81,75);toggleDiv('lights');"><span class="buttontext">75%</span></a>
<a href="javascript:;" onclick="dim(81,50);toggleDiv('lights');"><span class="buttontext">50%</span></a>
<a href="javascript:;" onclick="dim(81,25);toggleDiv('lights');"><span class="buttontext">25%</span></a>
<a href="javascript:;" onclick="switchoff(81);toggleDiv('lights');"><span class="buttontext">Off</span></a></div>
<a href="javascript:;"  onclick="toggleDiv('devices');"><span class="navtitle">Devices</span></a>
<div id="devices" class="navlights">
Dehumidifier

<a href="javascript:;" onclick="toggle(36);"><img id="dehumidifier" src="dehumidifier-off.png"></a></div>
</body>

And here are the 2 css sheets you need (I don’t know why I have done this yet but these will be useful when we start looking at device orientation.

Portrait.css

html {
margin: 0;
padding: 0;
}
body {
margin: 0;
padding: 0;
background-color:#000000;
}
div.navlights {
display:block;
text-align:center;
position:relative;
width: 100vw;
margin:0vw;
background-color:#CCCCCC;
font-family: 'Comfortaa', cursive;
font-size:6vw;
font-color:#000000;
}
span.buttontext {
background-color: #ffffff;
color: #75099b;
font-size:6vw;
display: inline-block;
padding: 3px 10px;
margin: 1vw;
font-weight: bold;
border-radius: 5px;
}

span.toggletext {
background-color: #FF66CC;
color:#ffffff;
font-size:6vw;
display: inline-block;
padding: 3px 10px;
margin: 1vw;
font-weight: bold;
border-radius: 5px;
}

span.navtitle {
color: #FFFFFF;
font-size:5vw;
display: inline-block;
margin: 3vw;
font-family: 'Baloo',cursive;
font-weight: normal;
}

landscape.css

html {
margin: 0;
padding: 0;
}
body {
margin: 0;
padding: 0;
background-color:#000000;
}
div.navlights {
display:block;
text-align:center;
position:relative;
width: 100vw;
margin:0vw;
background-color:#CCCCCC;
font-family: 'Comfortaa', cursive;
font-size:40px;
font-color:#000000;
}
span.buttontext {
background-color: #ffffff;
color: #75099b;
font-size:36px;
display: inline-block;
padding: 3px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}

span.toggletext {
background-color: #FF66CC;
color:#ffffff;
font-size:36px;
display: inline-block;
padding: 3px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}

span.navtitle {
color: #FFFFFF;
font-size:50px;
display: inline-block;
margin: 5px;
font-family: 'Baloo',cursive;
font-weight: normal;
}

 

Creating a custom HTML front end for Domoticz Part 1- YouTube companion article

ere’s the HTML and CSS you’ll need if you want to follow my guide over on my YouTube channel on how to create a custom user interface using HTML for Domoticz.

I’ve been asked many times for the code for my HTML interface and others have asked how to develop their own, so this step by step guide should help you to build a great looking interface that you can be proud of, and your family can use with ease.

In the index.htm file, when copied into a text editor, change the line:

var domoticzurl="192.168.1.163"

to the address of your Domoticz system.

Go to the Domoticz folder, then to the www folder, then create a folder called whatever you want your creation to be called.  I’ve called the folder fab for now.

Copy the three files into the folder.  Once complete, the Domoticz HTML server will serve up the page to whomever requests it.

Try it out by opening any browser and typing in

addressofyourdomoticzsystem:port/yourfoldername/index.htm

In my case this would be

192.168.1.200:8080/fab/index.htm

If all is well you should see your masterpiece!  Have a go at changing the names and idx codes of the devices and re-uploading and testing again.

As this HTML code sends HTTP requests, your browser may ask if you want to enable content.  This has happened on my desktop version of Google Chrome a few times.

There is some code at the top of the index.htm page that tells your browser that if you’re using a smartphone to open this page, you can save it to your homescreen.  The next time you open it, there will be no address bar and it will look like a web app.

save this text as index.htm


 


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<head>
<title>Home Control</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=0" />
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black" />

<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<meta name="description" content="" />
<meta name="keywords" content="" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
		<link rel="shortcut icon" href="favicon.ico" />
		<link rel="apple-touch-icon" href="iphone-icon.png"/>
		<link rel="icon" sizes="196x196" href="logo.png">
		<link rel="icon" sizes="192x192" href="logo192.png">
		<link rel="stylesheet" media="(orientation: portrait)" href="portrait.css">
		<link rel="stylesheet" media="(orientation: landscape)" href="landscape.css">

		<link href="https://fonts.googleapis.com/css?family=Baloo|Comfortaa" rel="stylesheet">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>

<script language="JavaScript" type="text/JavaScript">

var domoticzurl="192.168.1.163"

function MM_goToURL() { //v3.0
 var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
 for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}
function speak(textToSpeak) {
 // Create a new instance of SpeechSynthesisUtterance
 var newUtterance = new SpeechSynthesisUtterance();

// Set the text
 newUtterance.text = textToSpeak;

// Add this text to the utterance queue
 window.speechSynthesis.speak(newUtterance);
}

function switchon(devicecode){
 execute('PUT', 'http://' + domoticzurl + ':8080/json.htm?type=command&param=switchlight&idx='+devicecode+'&switchcmd=On', '');
}

function switchoff(devicecode){
 execute('PUT', 'http://' + domoticzurl + ':8080/json.htm?type=command&param=switchlight&idx='+devicecode+'&switchcmd=Off', '');
}

function toggle(devicecode){
 execute('PUT', 'http://' + domoticzurl + ':8080/json.htm?type=command&param=switchlight&idx='+devicecode+'&switchcmd=Toggle', '');
}

function dim(devicecode,dimlevel){
 execute('PUT', 'http://' + domoticzurl + ':8080/json.htm?type=command&param=switchlight&idx='+devicecode+'&switchcmd=Set%20Level&level='+dimlevel, '');
}

function execute($method,$url,$message){
xmlhttp=new XMLHttpRequest();
xmlhttp.open($method,$url,true)
xmlhttp.send($message);
}

function toggleDiv(divId) {
 $("#"+divId).toggle(100);
}

function hideDiv(divId) {
 $("#"+divId).hide();
}

window.addEventListener("load", function(){
 hideallDivs();
});;

function hideallDivs() {
 hideDiv("lights");
 hideDiv("devices");
}

</script>

</head>

<body>

<a href="javascript:;" onclick="toggleDiv('lights');"><span class="navtitle">Lights</span></a>
<div id="lights" class="navlights">
Desk Lamp

<a href="javascript:;" onclick="dim(594,16);toggleDiv('lights');"><span class="buttontext">Max</span></a>
<a href="javascript:;" onclick="dim(594,12);toggleDiv('lights');"><span class="buttontext">75%</span></a>
<a href="javascript:;" onclick="dim(594,8);toggleDiv('lights');"><span class="buttontext">50%</span></a>
<a href="javascript:;" onclick="dim(594,4);toggleDiv('lights');"><span class="buttontext">25%</span></a>
<a href="javascript:;" onclick="switchoff(594);toggleDiv('lights');"><span class="buttontext">Off</span></a>

<hr width="90%" style="dashed" color="#FFFFFF" size="2">

Ceiling Lamp

<a href="javascript:;" onclick="dim(81,100);toggleDiv('lights');"><span class="buttontext">Max</span></a>
<a href="javascript:;" onclick="dim(81,75);toggleDiv('lights');"><span class="buttontext">75%</span></a>
<a href="javascript:;" onclick="dim(81,50);toggleDiv('lights');"><span class="buttontext">50%</span></a>
<a href="javascript:;" onclick="dim(81,25);toggleDiv('lights');"><span class="buttontext">25%</span></a>
<a href="javascript:;" onclick="switchoff(81);toggleDiv('lights');"><span class="buttontext">Off</span></a></div>
<a href="javascript:;" onclick="toggleDiv('devices');"><span class="navtitle">Devices</span></a>
<div id="devices" class="navlights">
Dehumidifier

<a href="javascript:;" onclick="switchon(29);toggleDiv('devices');"><span class="buttontext">On</span></a>
<a href="javascript:;" onclick="switchoff(29);toggleDiv('devices');"><span class="buttontext">Off</span></a>
<a href="javascript:;" onclick="toggleDiv('devices');"><span class="toggletext">Auto</span></a></div>
</body>


Save this text as portrait.css


html {
margin: 0;
padding: 0;
}

body {
margin: 0;
padding: 0;
background-color:#000000;
}

div.navlights {
display:block;
text-align:center;
position:relative;
width: 100vw;
margin:0vw;
background-color:#CCCCCC;
font-family: 'Comfortaa', cursive;
font-size:6vw;
font-color:#000000;
}

span.buttontext {
background-color: #ffffff;
color: #75099b;
font-size:6vw;
display: inline-block;
padding: 3px 10px;
margin: 1vw;
font-weight: bold;
border-radius: 5px;
}

span.toggletext {
background-color: #FF66CC;
color:#ffffff;
font-size:6vw;
display: inline-block;
padding: 3px 10px;
margin: 1vw;
font-weight: bold;
border-radius: 5px;
}

span.navtitle {
color: #FFFFFF;
font-size:5vw;
display: inline-block;
margin: 3vw;
font-family: 'Baloo',cursive;
font-weight: normal;
}


And finally save this as landscape.css


html {
margin: 0;
padding: 0;
}

body {
margin: 0;
padding: 0;
background-color:#000000;
}

div.navlights {
display:block;
text-align:center;
position:relative;
width: 100vw;
margin:0vw;
background-color:#CCCCCC;
font-family: 'Comfortaa', cursive;
font-size:40px;
font-color:#000000;
}

span.buttontext {
background-color: #ffffff;
color: #75099b;
font-size:36px;
display: inline-block;
padding: 3px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}

span.toggletext {
background-color: #FF66CC;
color:#ffffff;
font-size:36px;
display: inline-block;
padding: 3px 10px;
margin: 5px;
font-weight: bold;
border-radius: 5px;
}

span.navtitle {
color: #FFFFFF;
font-size:50px;
display: inline-block;
margin: 5px;
font-family: 'Baloo',cursive;
font-weight: normal;
}

Logs, logic and inspiration: Managing a complex home control setup

You know how it goes.  You start with one or two home control devices.  You find it amazing that you can control them from your phone.  You want more.  And more…

Here’s a quick diagram of my current setup at home.

setup.png

There are at least 77 items for the home control system to control.  Each one has a unique set of capabilities, and inter dependencies with other devices.  Certain groups of these items require different communication protocols, some radio, some infrared, some HTTP and some via a webserver.

As my system has been created from several protocols and brands, I find it engaging and a full-on hobby to ensure they perform perfectly in concert.  Basic scripting has become more in-depth as I attempt to squeeze out the most from every device.  Although adding additional functionality is stimulating for me and ultimately rewarding for me and my flatmate, each iteration adds a new layer of complexity – and like every complex system, the bigger it is, the harder it can fall.

I’ve recently been faced with a problem.  A few times in a row, the Raspberry Pi 2 has frozen overnight. The controls and automatic lighting obviously do not respond, and then something as simple and as taken for granted as getting light and audio into the shower requires scrabbling through phone apps: not good if the water is already running!  Worse, the switches that are supposed to be triggered in the early morning, such as the “it is dawn” variable do not fire.  So with such a complex system how do you diagnose the problem?

Logs

The first answer is logs.  Loads of logs.  Ensure each of your subsystems are writing down what they are doing and just as importantly when they are doing it.  You can then rifle through the logs and find anything that is not behaving as you’d planned.

Inter-dependency diagrams

Okay, so this may be the most geeky thing I have said on this blog so far, but I like to keep diagrams and spreadsheets showing which systems and activities are inter-related.  And in the event of a catastrophic failure, they pay dividends.  You can literally trace your finger through the lines and see which scripts you need to check if something is not working right.  You can also keep track of things like ID codes and group codes for all your connected devices.

Logic

To do this you need to empty the house of unexpected variables (i.e. the rest of the family and pets large enough to trigger any sensors) and then physically run through each process that you think may be causing the problem.  If you are anything like me this usually involves an embarrassing and potentially uncomfortable period where you are remaining totally motionless right in front of a motion sensor to see what happens when the “no movement here” signal is sent.

Inspiration

You may be surprised by the other users’ perception and understanding of your home control system.  Ask other occupants what they think is happening.  At best they could hit the nail on the head, and if not they just may throw something so left-of-centre out there that is provides you with the fresh outlook you need to trace the problem.

Summary

I feel this entry will become outdated very soon.  As consumers we are on the cusp of having our cake and eating it: a fully integrated one-stop solution for home automation that will work seamlessly and without requiring manual programming.  It may even have the ability to provide reasons for failure and suggest ways to work around it, especially if open-source and app-based: a fellow user in the Netherlands could be granted temporary access to help sort out the problem you’re having with your garage door in California.

This new way will remove the complexity involved in getting disparate systems to work together, but will it provide the level of control we ‘first gen’ full home control aficionados will require?  Either way, I’m glad I’ll be able to say “In my day, we had to fumble around to find the solutions to these issues, and sometimes create our own!”

 

 

Writing a home control front end in HTML.

I’ve been asked a few times about my custom front-end for my Domoticz, Hue and Sonos setup, so here are a few HTML snippets and where to put them, assuming you are running Domoticz on your home control server.

Right from the offset I must stress that the Icons I have used are made by various incredibly skilled designers at http://www.flaticon.com/ and therefore this front end cannot be used for any commercial purpose.

I have previously written an extensive post about the continuous development of a home control user interface and have posed a video containing my front end, so this post will not be about the thought process behind creating a UI, rather how I have managed to put one together using HTML.

I must also stress that I am not an expert in baking a web app.  Developers may read my code and scoff at its inefficiency but it works for me, and hopefully can give you some inspiration.

Layout

The layout of all panels follows the same template: A main area where the actual buttons and controls live, changing depending on which screen the user selects; the ‘scenes’ bar, a blue strip towards the bottom of the display which is a kind of ‘quick access’ ribbon for regularly used commands; and a Links bar which permanently shows the pages that can be displayed.

layout

There is also a ‘notifications’ display which shows up just above the scenes bar with information provided by a variable in Domoticz.  This text can be ‘cleared’ by touching it (more on this later).

All screens use variations on the same HTML so not every screen is shown in detail in this post.

Home Screen

Home

Home is where the heart is.  I like the home screen to be simple, uncluttered and good looking.  It’s by far the screen shown most regularly so less is more here.

The interesting part of this screen is the background.  It changes depending on the weather.  First I saved six 2000×600 backgrounds with names ranging from weatherback-rain.png to weatherback-fog.png.  You need cloudy, fog, partlycloudy, rain, snow and sunny.  I set the size of these backgrounds to fit the tablet which the screen is displayed on so you may need to adjust accordingly.

The HTML code to change the background depending on the weather is as follows (change xx, yyyy and zz to the address of your Domoticz server, the port Domoticz is using and the idx code of your weather source in Domoticz):

function updateweather(){

                var forecast

                var xmlhttp = new XMLHttpRequest();

                var url = "http://192.168.1.xx:yyyy/json.htm?type=devices&rid=zz";

                var forecast

                xmlhttp.onreadystatechange = function() {

                 if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {

                 var myArr = JSON.parse(xmlhttp.responseText);

                                                forecast = myArr.result[0].ForecastStr;

                                                console.log("Forecast is " + forecast + ".")

       // myFunction(myArr);

                                                 if (forecast == "Partly Cloudy") {

                                                 document.getElementById("weatherindicator").src = "weatherback-partlycloudy.png";

                                                                }

                                                 if (forecast == "Sunny") {

                                                 document.getElementById("weatherindicator").src = "weatherback-sunny.png";

                                                                }                                                              

                                                if (forecast == "Rain") {

                                                 document.getElementById("weatherindicator").src = "weatherback-rain.png";

                                                                }              

                                                if (forecast == "Fog") {

                                                 document.getElementById("weatherindicator").src = "weatherback-fog.png";

                                                                }                              

                                                if (forecast == "Snow") {

                                                 document.getElementById("weatherindicator").src = "weatherback-snow.png";

                                                                }

                                                if (forecast == "Cloudy") {

                                                 document.getElementById("weatherindicator").src = "weatherback-cloudy.png";

                                                                }                                              

                                                }

                }

xmlhttp.open("GET", url, true);

xmlhttp.send();

setTimeout(updateweather,60000);

}

Notice that the last line of this code sets up the web page to update the weather picture every 60 seconds.  Ok, in the body of your HTML you’ll need something like

<div id="weatherdisplay" align="left" class="weatherback"><img id="weatherindicator" src=""></div>

And you’ll need something like this wherever you save your CSS:

div.weatherback {

    position: fixed;

    top: 0px;

    left: 0px;

    width: 1000px;

                height:600px;

}

Activating Hue scenes

The API for Hue is relatively easy to use.  I used the API to save scenes to each room and then can recall them from the press of an icon on the scenes bar.  The HTML at the scene bar is easy:

<a href="javascript:;" onClick="groupscene(1,7);switchoff(24)"><img src="scene-cinema.png" width="150" height="150" border="0"></a>

The button called scene-cinema.png does two things actually, sets the group 1 to scene 7 and then switches of a switch in Domoticz.  Let’s see the code for each of these functions:

function groupscene(group,scene){

                execute('PUT', 'http://192.168.1.aa/api/bbbbbbb/groups/'+group+'/action', '{"scene":"'+scene+'"}');

}

Change aa to the address of your Hue bridge and bbbbbb to the name of the developer (if you followed the Hue API instructions from the Hue website this might be “newdeveloper”.  If your scene does not change straight away then your control panel might not be authorised to the Hue bridge.  If this is the case, press the button on the Hue bridge and then try again a couple of times.

function switchon(devicecode){

                execute('PUT', 'http://192.168.1.xx:yyyy/json.htm?type=command&param=switchlight&idx='+devicecode+'&switchcmd=On', '');

}

 

function switchoff(devicecode){

                execute('PUT', 'http://192.168.1.xx:yyyy/json.htm?type=command&param=switchlight&idx='+devicecode+'&switchcmd=Off', '');

}

 

function toggle(devicecode){

                execute('PUT', 'http://192.168.1.xx:yyyy/json.htm?type=command&param=switchlight&idx='+devicecode+'&switchcmd=Toggle', '');

}

 

function dim(devicecode,dimlevel){

                execute('PUT', 'http://192.168.1.xx:yyyy/json.htm?type=command&param=switchlight&idx='+devicecode+'&switchcmd=Set%20Level&level='+dimlevel, '');

}

The above codes (again change xx to the address of your Domoticz server and yyyy to the port number) are all similar. Switchon, switchoff do what they say on the tin.  Toggle changes the state of an on/off switch and then dim sets a certain switch you specify (idx) to the dim level you select (dimlevel).

While we’re here, here’s a list of the other Hue functions I put into the home control system:

function lightoff(light){

                execute('PUT', 'http://192.168.1.aa/api/bbbbbb/lights/'+light+'/state', '{"on":false}');

}

 

function lightmax(light){

                execute('PUT', 'http://192.168.1.aa/api/bbbbbb/lights/'+light+'/state', '{"on":true,"bri":255,"sat":0,"hue":0}');

}

 

function briup(group){

                execute('PUT', 'http://192.168.1.aa/api/bbbbbb/groups/'+group+'/action', '{"bri_inc":40}');

}

 

function bridn(group){

                execute('PUT', 'http://192.168.1.aa/api/bbbbbb/groups/'+group+'/action', '{"bri_inc":-40}');

}

 

function groupcontrol(group,hue,bri,sat){

                execute('PUT', 'http://192.168.1.aa/api/bbbbbb/groups/'+group+'/action', '{"on":true,"bri":'+bri+',"sat":'+sat+',"hue":'+hue+'}');

}

 

function groupscene(group,scene){

                execute('PUT', 'http://192.168.1.aa/api/bbbbbb/groups/'+group+'/action', '{"scene":"'+scene+'"}');

}

So these are the main components of the home page – and here’s a snippet of how I go the inside and outside temperature (change zz to the idx of your temperature sensor):

function updateintemp(){

                var instatus

                var xmlhttp = new XMLHttpRequest();

                var url = "http://192.168.1.xx:yyyy/json.htm?type=devices&rid=zz";

                xmlhttp.onreadystatechange = function() {

                if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {

               var myArr = JSON.parse(xmlhttp.responseText);

                                                instatus =  "Inside: " + myArr.result[0].Data;

                                                console.log(instatus)

                                                document.getElementById("intemp").innerHTML = instatus

                }

                }

xmlhttp.open("GET", url, true);

xmlhttp.send();

setTimeout(updateintemp,20000);

}

You need a div with id “intemp” positioned where you like, and again the last part of the above code sets up the web app to update the temperature each 20 seconds.

Devices screen

devices

The devices screen updates the icons with a green bar when the switch is on and a grey bar when off.  I save two identical png pictures, one with -on.png at the end and one with -off.png.  I enter this HTML repeatedly, changing the id and the source of the picture for each button:

<a href="javascript:;" onClick=”toggle(xx)"><img src="chesterlampoff.png" width="125" height="125" hspace="5" vspace="5" border="0" id="chesterlamp"></a>

Change xx to the idx of the device in Domoticz (you can find the idx of the device in the ‘Devices’ tab of the Domoticz interface.

Change the id=”chesterlamp” to id=”whateveryourdeviceiscalled” then change the img src to the ‘off’ picture for your device.

In the code part you need the following:

function updatedevice(idx,location,onimage,offimage){

                console.log("checking status of idx "+idx)

                var xmlhttp = new XMLHttpRequest();

                var url = "http://192.168.1.94:8080/json.htm?type=devices&rid="+idx;

                var onoff

                xmlhttp.onreadystatechange = function() {

                if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {

               var myArr = JSON.parse(xmlhttp.responseText);

                                                onoff = myArr.result[0].Status;

       // myFunction(myArr);

                }

                                if (onoff == "On") {

                                document.getElementById(location).src = onimage;

                                }

                                if (onoff == "Off") {

                                document.getElementById(location).src = offimage;

                                }

                                if (onoff == "Open") {

                                document.getElementById(location).src = onimage;

                                }

                                if (onoff == "Closed") {

                                document.getElementById(location).src = offimage;

                                }

                }

xmlhttp.open("GET", url, true);

xmlhttp.send();

}

Then another function where you will put all the code to tell the web app to update the icons depending on how Domoticz reports the switch (on or off, or even open or closed if you’re using door sensors too):

window.setInterval(function(){

                updatedevice(187,'chesterlamp',"chesterlampon.png","chesterlampoff.png");

                updatedevice(132,'washingmachine',"washingmachineon.png","washingmachineoff.png");

                countup();

                updatenotification(11)

                }, 1000);

I’ve put two switches here, Chester’s lamp and the washing machine.  You can add as many switches as you like here, as long as they have been set up in the body of the HTML.

There are two other functions that are called each second too: countup() and updatenotification(11)

Automatically reverting to the Home Screen

If you want the screen to revert to home after two minutes of inactivity, you can use this code:

First put

var ticker = 0;

at the start of your code block, then put:

function countup(){

                ticker=ticker+1

                console.log("Ticker is " + ticker);

                if (ticker>120) {

                                console.log("Moving to index...")

                                MM_goToURL('self','index.htm');

                                }

                }

This means that once the variable ‘ticker’ has incremented to 120, the screen will go to the page called index.htm.  If you use this code, remember to put this at the end of each function:

ticker = 0;

This will reset the timer so that another 2 minutes have been added to the time before the page will switch to the Home Screen.

Notifications from Domoticz

I have set up the screens to show a strip which indicates what Domoticz is up to.  Some of my LUA scripts in Domoticz update a variable with a string of text in English to tell the user what Domoticz is doing.  This could be confirmation that a switch has been turned on/off or it could report is something has been triggered automatically.

First, create a string variable in Domoticz called LastEvent and then note down its idx.  In the below case the idx is 11 (and there’s already a string update in there too, yours will be empty when you first set it up).

variables

Back to the home control HTML:

function updatenotification(idx){

                console.log("checking status of idx "+idx)

                var xmlhttp = new XMLHttpRequest();

                var url = "http://192.168.1.xx:yyyy/json.htm?type=command&param=getuservariable&idx="+idx;

                var textentry

                xmlhttp.onreadystatechange = function() {

                if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {

               var myArr = JSON.parse(xmlhttp.responseText);

                                                textentry = myArr.result[0].Value;

       // myFunction(myArr);




                                document.getElementById("notification").innerHTML = textentry;

                                }

                                }

xmlhttp.open("GET", url, true);

xmlhttp.send();

}

And:

function clearnotification(idx){

                execute('PUT', "http://192.168.1.94:8080/json.htm?type=command&param=updateuservariable&idx="+idx+"&vname=LastEvent&vtype=2&vvalue=%00", '');

}

And in the body of the HTML (so once the text is clicked the variable in Domoticz is reset to null):

Something like this for the CSS: div.notificationpane {     position: fixed;     bottom: 250px;     left: 0px;                 width: 100%;                 font-size: 30pt;                 background-color: #333333;                 text-indent: 25px;                 opacity: 0.6; }

Then in the LUA script, when you want to notify the user about something, you can add a line like this:

commandArray['Variable:LastEvent'] = tostring(os.date("%H") .. ':' .. os.date("%M") .. ' Rear balcony door opened, lights on for 15 minutes.')

This adds the time and the text to the variable, which then almost immediately pops up on the Home Control screen until it is clicked.

Where to store your HTML

When you have created your masterpiece, you can save it in a new folder of your choice below the /domoticz/www/ folder.  You can use something like WinSCP to create a folder and then transfer all your files in one go.

Then, when you usually navigate to 192.168.1.1:8080 to go to the Domoticz home screen, add / then the name of your folder then /index.htm or whatever your home screen address is.

Summary

Due to the jerry-rigged nature of my HTML code I am not going to publish it in its entirety.  I also don’t know the ins and outs of using the flaticons.com icons and publishing them directly.  Hopefully, however, this post will give you some inspiration to write your own home control front end.

Creating a security system

A major plus for home automation is the ability to give any device multiple purposes.  With a little imagination, a Sonos speaker can become a voice announcer, a lightbulb can become an effective method of simulating occupancy in a home.

Everyone wants to feel their possessions are secure.  A standard house alarm is useful- and many are becoming smarter- but there is always the chance that a ringing alarm box is less of a call-to-arms and more of an annoyance to be ignored.  With that in mind, I would suggest building your own security system to notify you as soon as something is out of the ordinary.

This security system is created wholly from home automation products and is armed when you select a switch called “Leaving” on Domoticz, waits for 5 minutes to allow you time to come back in if you have forgotten anything (which I always do!), then after a further 5 minutes attempts to detect your phone(s) and if they are in wifi range, disarms the system again.

What you’ll need

  • Raspberry Pi running Domoticz
  • RFXCOM RFXtrx433
  • A number of door sensors, vibration sensors or PIRs (or any combination of these)
  • Python running on the Raspberry Pi
  • Maybe a network IP camera if you want to capture a photo when the alarm is triggered

How long it will take

Depending on the number of door sensors/PIRs/Cameras that you want to install, it could take anything from 15 minutes to several hours.

Step One – Install your devices

Choose entry points to your home.  The obvious one is the front door but also think about other places where someone may try to gain entry.

For doors, place the sensor towards the top of the door.  Remember to look at where the battery will need changing from, and ensure this will be easy to access by orienting the battery compartment/drawer towards the ground.  If space is limited, remember that there’s nothing to stop you attaching the larger part of the sensor (the transmitter) on the door itself and the smaller part (housing the magnet) on the frame of the door.  Use sticky strips first to test, even if you plan to screw the sensor to the door later.

For vibration sensors you can usually affix these directly to the window using suction cups.  If the type you have requires a more permanent fixing, try taping the sensor to the window first to ensure you (and other family members) are happy with their placement.

For PIRs, install these unobtrusive but accessible areas.  Remember that as these devices are wireless, you can even place them on shelves.  You don’t need to put them in corners of rooms like wired sensors.  Choose places where it would be impossible not to cross the detector if moving from room to room (hallways are a great position).  Remember that if you have pets the sensors should be raised up so that they can only be activated by humans.

Learn and name each sensor into Domoticz.  Remember to specify what type of device you are adding (PIR, Door sensor etc).

Step Two – Create a few Dummy switches

Create a dummy switch called “Leaving”.  This will be ON when you have left the home and OFF when you return.

Another dummy switch called “Security Alarm” is needed.  This is the switch that tells the scripts whether to send you an alert when a sensor is triggered.  You don’t want to get alerts when you are at home (as you’re probably the one triggering them!)

Another dummy switch called “Waiting for Phones” needs to be created.  This will be ON when the security system is waiting for you to return home.

Then create a switch for each phone you want to automatically disarm the system with.  I use two switches (“Chesters Phone” and “Harrys Phone”).

Finally, we need one more dummy switch – “Arm Security”.

Step Three – Write the scripts

A few scripts are needed now.  What will happen when you switch on the “Leaving” switch?  What about when it is turned off?  What happens when a sensor is activated and the “Security Alarm” switch is on?

The first code I write is saved as “device_SECURITY_Leave.lua” and is saved in the domoticz/scripts/lua/ folder

commandArray = {}
if devicechanged['Leaving'] == 'On' then
 commandArray['Environment Automation'] = 'Off'
 commandArray['Living Room Camera'] = 'On'
 commandArray['Security Alarm'] = 'Off'
 commandArray['Arm Security'] = 'On'
 commandArray['TEMP Set to 15'] = 'On'
 end
 return commandArray


This script (which I have reduced down as there are tens more switches to change when the flat is left unoccupied) runs once the Leaving switch is turned on.

We need a script to say when the alarm is activated – notice that I don’t switch the “Security Alarm” switch on with the above code.  If I did, once the Leaving switch was set, notifications would be sent to my phone as I walk through the flat to leave and open the front door.  I want to add a delay to the arming of the system.  This script is a timed script so starts with the text”script_time” instead of “script_device” – I’ve called it “script_time_SECURITY_Leaving.lua”

t1 = os.time()
s = otherdevices_lastupdate['Arm Security']
 
year = string.sub(s, 1, 4)
month = string.sub(s, 6, 7)
day = string.sub(s, 9, 10)
hour = string.sub(s, 12, 13)
minutes = string.sub(s, 15, 16)
seconds = string.sub(s, 18, 19)
 
commandArray = {}
 
t2 = os.time{year=year, month=month, day=day, hour=hour, min=minutes, sec=seconds}
difference = (os.difftime (t1, t2))
print ('Leaving difference ' .. difference)

if (difference > 300 and otherdevices['Security Alarm'] == 'Off' and otherdevices['Arm Security'] == 'On') then
 commandArray['Security Alarm'] = 'On'
 commandArray['Arm Security'] = 'Off'
 print ('Security Alarm is now armed.')
 commandArray['SendNotification']='Security Armed#Security alarm is now armed.'
end 

if (difference > 600 and otherdevices['Waiting for Phone'] == 'Off' and otherdevices['Leaving'] == 'On') then
 commandArray['Waiting for Phone'] = 'On'
 commandArray['Harry Phone'] = 'Off'
 commandArray['Chester Phone'] = 'Off'
 print ('Waiting for phones to return.')
end 

return commandArray

Again, I’ve removed quite a few of the potential sensors to activate the alarm, but you get the idea.  You may notice another switch in there – “SECURITY Living Room”.  This switch is linked to a network camera we have in the living room, and thanks to the inbuilt scripting in Domoticz, sends a picture from the camera via email to multiple recipients.

The Security Screen of my homemade home control panel

The above script checks how long it has been since the “Arm Security” switch has been activated.  If 5 minutes, then the “Security Alarm” switch is turned on.  If 10 minutes, then the system starts searching for phones.  Living in a block of flats it is hard to judge the best interval for this.  On more than one occasions Chester and I have left the flat for the day, only to bump into a neighbour on the stairwell and have a gossip with them.  This has turned into more than a 10 minute delay, and as we’re still in range of our WiFi, this in turn switches off the “Security Alarm” switch.

Now we need the script to watch out for our phones to automatically disarm the system.  This is in three parts.  One part controls the timing (i.e. run a script every minute if waiting for phones to return) while the other two try to find our phones using a quick Python script.  The first goes in the domoticz/scripts/lua folder and I have called it script_time_SECURITY_Phones.lua:

commandArray = {}
if otherdevices['Waiting for Phone'] == 'On' then
 os.execute('python3 ./Security-Detection-Harry.py &')
 os.execute('python3 ./Security-Detection-Chester.py &')
end 
return commandArray

As you can guess, we now need some Python programs.  They are both the same (except each phone has its own static IP address and its own switch in Domoticz).  These are stored in the domoticz folder itself (not in any subfolder):

This one is called Security-Detection-Harry.py

import urllib
import requests
from random import randint 
import base64,requests,json,time,datetime
import os
"""
Detects Harry's phone and switches Domoticz if found.
"""
hostname = "192.168.1.1"
response = os.system("ping -c 1 " + hostname)
#and then check the response...
if response == 0:
   print (hostname, 'is up!')
   req = requests.get('http://192.168.1.94:8080/json.htm?type=command&param=switchlight&idx=176&switchcmd=On')
else:
   print (hostname, 'is down!')
   req = requests.get('http://192.168.1.94:8080/json.htm?type=command&param=switchlight&idx=176&switchcmd=Off')

So the above script searches for my phone (the IP address of my phone is fixed to 192.168.1.1) and switches a switch in Domoticz if my phone is detected or not.  In the above example Domoticz has given my “Harrys Phone” switch the number 17, so that’s the one I want to alter depending on whether the phone is present or not.

The next script deactivates the security alarm if the phones are detected.  Saved in domoticz/scripts/lua it is called script_device_SECURITY_Phones.lua:

commandArray = {}
if devicechanged['Waiting for Phone'] == 'On' then
 commandArray['Harry Phone'] = 'Off'
 commandArray['Chester Phone'] = 'Off'
end
if (devicechanged['Chester Phone'] == 'On' and otherdevices['Waiting for Phone'] == 'On' and otherdevices['Leaving'] == 'On') then
        commandArray['Leaving'] = 'Off'
        print("Chester's phone detected.")
 commandArray['SendNotification'] = 'Security Message#Chesters phone detected.  Disarming system and switching on devices.'
end
if (devicechanged['Harry Phone'] == 'On' and otherdevices['Waiting for Phone'] == 'On' and otherdevices['Leaving'] == 'On') then
        commandArray['Leaving'] = 'Off'
        print("Harry's phone detected.")
 commandArray['SendNotification'] = 'Security Message#Harrys phone detected.  Disarming system and switching on devices.'
end
if (devicechanged['Chester Phone'] == 'On' and otherdevices['Waiting for Phone'] == 'On' and otherdevices['Leaving'] == 'Off') then
        commandArray['Waiting for Phone'] = 'Off'
        print("Chester's phone detected.  No action taken.")
end
if (devicechanged['Harry Phone'] == 'On' and otherdevices['Waiting for Phone'] == 'On' and otherdevices['Leaving'] == 'Off') then
        commandArray['Waiting for Phone'] = 'Off'
 print("Harry's phone detected.  No action taken.")
end
return commandArray

Very nearly there!  This script is saved in domoticz/scripts/lua and is called script_device_SECURITY_Return.lua and tells Domoticz what to switch back on when one of us arrives home.

commandArray = {}
if devicechanged['Leaving'] == 'Off' then
        commandArray['Power Up'] = 'On'
        commandArray['Living Room Camera'] = 'Off'
        commandArray['Arm Security'] = 'Off'
        commandArray['Waiting for Phone'] = 'Off'
        commandArray['Security Alarm'] = 'Off'
        commandArray['Environment Automation'] = 'On'
 if otherdevices['VAR Dusk'] == 'On' then
         commandArray['DIMMER TV Lamps'] = 'Set level 100'
         os.execute('./Hue-LR-Darkday.py')
  commandArray['Front Balcony Lights'] = 'On'
 end
        commandArray['Air Purifier'] = 'On'
        commandArray['Living Room TV'] = 'On'
        commandArray['Washing Machine'] = 'On'
 commandArray['Cat Sitter'] = 'Off'
end
return commandArray

Now there’s only one thing left to do: decide what happens when the alarm is activated.  You could turn on lights, make sound come out of a network speaker, switch on the TV, contact you using the Domoticz alerts function… the list is endless.  Here’s some of my code, again stored in domoticz/scripts/lua and this is called script_device_SECURITY_Sensors.lua

commandArray = {}

if (devicechanged['DOOR Entrance'] == 'Open' and otherdevices['Security Alarm'] == 'On') then
 commandArray['SendNotification'] = 'Security Message#Front door opened.'
 commandArray['VAR Entrance'] = 'On'
        commandArray['SECURITY Entrance'] = 'On'
 print('ALARM ACTIVATED - FRONT DOOR SENSOR')

elseif (devicechanged['DOOR Hallway'] == 'Open' and otherdevices['Security Alarm'] == 'On') then
 commandArray['SendNotification'] = 'Security Message#Hallway door opened.'
        commandArray['SECURITY Living Room'] = 'On'
        print('ALARM ACTIVATED - HALLWAY SENSOR')

elseif (devicechanged['DOOR Hallway'] == 'Closed' and otherdevices['Security Alarm'] == 'On') then
 commandArray['SendNotification'] = 'Important Security Message#Hallway door closed!'
        commandArray['SECURITY Living Room'] = 'On'
        commandArray['VAR Entrance'] = 'On'
        print('ALARM ACTIVATED - HALLWAY SENSOR')end
return commandArray
This is a small (but functioning) fragment of all the sensors that will trigger a security alert in the flat if we are away and something unexpected happens.
Summary
I have probably made this system more difficult than it needs to be over time, but this security system does work flawlessly and does provide peace of mind when we’re away.  If you have some home automation sensors doing one type of job, why not get them involved in creating a bespoke security system… and make them earn their keep around your home.  Your family will thank you for it – as long as the process of arming and disarming the system is as user friendly as possible.

Controlling Sonos via LightwaveRF Mood Controllers

I had a request to write about how I control my Sonos players via my LightwaveRF Mood Controllers.  Actually, it’s a good call: re-engineering the mood controllers from simple light switches to pads which can control both lighting moods and audio more closely reflects the ‘built-in’ panels found in expensive custom installs.  In fact, using the technique below there’s nothing to stop you from controlling any number of home control activities from your mood controllers or handheld remotes.

I can say with authority that without these wall-mounted controllers all over the flat, I would never have been allowed to continue developing the system.  Having a familiar controller in each room ensures that users don’t need to run to the central controller or get out their smartphones whenever they want to make quick and regular changes to the light, heating or audio settings.

What you’ll need:

A summary is that node-sonos-http-api does the vast majority of the work, by ‘listening’ to all connected Sonos controllers and controlling them by very simple http requests.  These http requests are triggered by Domoticz once a signal is received from the mood controller.

How long this will take:

  • If you already have the Pi running Domoticz, and have been using a Sonos player already, and maybe have just bought a LigtwaveRF mood controller or other wall controller compatible with Domoticz, the whole thing will take about 30-40 minutes if you take your time.

Add the mood controller to Domoticz

From the Domoticz interface select the Switches screen, then select Learn Light/Switch at the top.  You should imagine the mood controller as two distinct switches stuck together: as far as Domoticz is concerned the two largest buttons are a completely different device compared to the four smaller buttons.

Immediately press the large OFF button (marked with a zero) on the mood controller.  In the box that appears give the mood controller a name – remembering that this is only the name given to the top two buttons of the controller (e.g Bathroom Lights).

This time we’re going to learn the lower row of the mood controller (the four smaller buttons). Repeat the above by pressing Learn Light/Switch and this time immediately press any one of the smaller buttons on the controller.  Name these too (e.g. Bathroom Audio).

Back up your Domoticz database

Just in case the next step causes problems for you it might be good to back up your system.  I’ve only needed to restore the system once – when I made a complete mess of installing node and npm.

Install node-sonos-http-api

I did this to install and it worked.  You may have a different setup or you may want to select another way of doing this.

Make sure you have node and npm installed.  If you don’t, search for and follow the instructions on how to install these carefully as I have messed this up more than once, by being all “I know how to do this, I’ll just skip this step”.  When will I ever learn?!

Get to the Domoticz folder and create a folder called sonos.

In the sonos folder, clone the node-sonos-http-api program by typing


git clone https://github.com/jishi/node-sonos-http-api.git

Navigate to the new node-sonos-http-api folder and fix the dependencies by typing


npm install

You can now run the program by typing


node server.js

Now the magic starts!  Open a browser and navigate to http://192.0.0.0:5005/Kitchen/play, where 192.0.0.0 is the address of your Pi and Kitchen is the name of your Sonos speaker.

The browser will ‘open’ a blank page, but the speaker in the room will start playing (assuming something is in the play queue.  If not use http://192.0.0.0/Kitchen/playlist/My%20Playlist.  This time, the playlist “My Playlist” is selected (make sure you use hex codes such as %20 instead of spaces in the URL- this includes rooms, so Living Room becomes Living%20Room).

Use the commands listed here to control your Sonos players.

Create scripts

Consider the commands you will want to send to Sonos via the mood controllers.

In this example my room is called Bathroom and the functions I want to add to the mood controller are play, pause, Radio 4 and a playlist called Harry 1.

I’ll need to create four scripts.  The easiest way to create scripts on the Pi  is to use nano, or off the Pi I use WinSCP.

Make sure the scripts are stored in the domoticz folder (not any subfolder).

The scripts will be called Sonos-BR-Play,.sh Sonos-BR-Pause.sh, Sonos-BR-R4.sh and Sonos-BR-Harry1.sh

Sonos-BR-Play will include the following text (just one line is needed to send an http request via a command called curl):

curl http://192.0.0.0:5005/Bathroom/play

Where 192.0.0.0 is the address of the Pi and ‘Bathroom’ is the exact name of the Sonos player.

The other 3 files contain very similar commands:

curl http://192.0.0.0:5005/Bathroom/pause

curl http://192.0.0.0:5005/Bathroom/favorite/BBC%20Radio%204

and

curl http://192.0.0.0:5005/Bathroom/playlist/Harry%201

So now I have these files in the domoticz folder.  I need to make them executable by Domoticz, so in the domoticz folder type


chmod u+x *.sh

We’re coming to the last part now!

Create LUA scripts for Domoticz

We need to run the scripts we created when Domoticz detects the button being pressed on the mood controller.  Let’s imagine the 4 small buttons on the mood controller are going to control the 4 functions we’ve just created scripts for.  The four buttons change the Domoticz device to Group Off, Group Mood 1, Group Mood 2 or Group Mood 3.  You can test this by pressing the buttons and waiting to see Domoticz change the status of the device.

I’m going to imagine that the mood controller’s set of 4 buttons is called ‘Bathroom Audio’ in Domoticz.

Go to the domoticz/scripts/lua folder and create a new file called script_device_BathroomAudio.lua

In the script I’m going to put this text in (you should see by the contents how you can change this):


commandArray = {}

if devicechanged['Bathroom Audio'] == 'Group Off' then

os.execute('./Sonos-BR-Play.sh')
print ('Bathroom Play via mood controller')

elseif devicechanged['Bathroom Audio'] == 'Group Mood 1' then
os.execute('./Sonos-BR-Pause.sh')
print ('Bathroom Pause via mood controller')

elseif devicechanged['Bathroom Audio'] == 'Group Mood 2' then
os.execute('./Sonos-BR-R4.sh')
print ('Bathroom Radio 4 via mood controller')

elseif devicechanged['Bathroom Audio'] == 'Group Mood 3' then
os.execute('./Sonos-BR-Harry1.sh')
print ('Bathroom Harry Playlist via mood controller')

end

return commandArray

That’s it! You should be able to control your Sonos anywhere you can stick a LightwaveRF mood controller.  Let me know how you get on!