DzVents: next generation LUA scripting

From Domoticz
Jump to: navigation, search

For people working with dzVents prior to version 2.0: Please read the change log below as there are a couple of (easy-to-fix) breaking changes. Or check Migrating from version 1.x.x

Contents

About dzVents 2.3.0

dzVents /diː ziː vɛnts/, short for Domoticz Easy Events, brings Lua scripting in Domoticz to a whole new level. Writing scripts for Domoticz has never been so easy. Not only can you define triggers more easily, and have full control over timer-based scripts with extensive scheduling support, dzVents presents you with an easy to use API to all necessary information in Domoticz. No longer do you have to combine all kinds of information given to you by Domoticz in many different data tables. You don't have to construct complex commandArrays anymore. dzVents encapsulates all the Domoticz peculiarities regarding controlling and querying your devices. And on top of that, script performance has increased a lot if you have many scripts, because Domoticz will fetch all device information only once for all your device scripts and timer scripts.

Let's start with an example. Say you have a switch that when activated, it should activate another switch but only if the room temperature is above a certain level. And when done, it should send a notification. This is how it looks in dzVents:

return {
    active = true,
    on = {
        devices = {
            'Room switch'
        }
    },
    execute = function(domoticz, roomSwitch)
        if (roomSwitch.state == 'On' and domoticz.devices('Living room').temperature > 18) then
            domoticz.devices('Another switch').switchOn()
            domoticz.notify('This rocks!',
                            'Turns out that it is getting warm here',
                            domoticz.PRIORITY_LOW)
        end
    end
}

Or you have a timer script that should be executed every 10 minutes, but only on weekdays, and have it do something with some user variables and only during daytime:

return {
    active = true,
    on = {
        timer = {'Every 10 minutes on mon,tue,wed,thu,fri'}
    },
    execute = function(domoticz)
        -- check time of the day
        if (domoticz.time.isDayTime and domoticz.variables('myVar').value == 10) then
            domoticz.variables('anotherVar').set(15)
            --activate my scene
            domoticz.setScene('Evening lights', 'On')
            if (domoticz.devices('My PIR').lastUpdate.minutesAgo > 5) then
                domoticz.devices('Bathroom lights').switchOff()
            end
        end
    end
}

Or you want to detect a humidity rise within the past 5 minutes:

return {
    active = true,
    on = {
        timer = {'every 5 minutes'}
    },
    data = {
        previousHumidity = { initial = 100 }
    },
    execute = function(domoticz)
        local bathroomSensor = domoticz.devices('BathroomSensor')
        if (bathroomSensor.humidity - domoticz.data.previousHumidity) >= 5) then
            -- there was a significant rise
            domoticz.devices('Ventilator').switchOn()
        end
        -- store current value for next cycle
        domoticz.data.previousHumidity = bathroomSensor.humidity
    end
}

Just to give you an idea! Everything in your Domoticz system is now logically available in the domoticz object structure. With this domoticz object, you can get to all the information in your system and manipulate your devices.

Using dzVents with Domoticz

In Domoticz go to Setup > Settings > Other and in the section EventSystem make sure the checkbox 'dzVents disabled' is not checked. Also make sure that in the Security section in the settings you allow 127.0.0.1 to not need a password. dzVents uses that port to send certain commands to Domoticz. Finally make sure you have set your current location in Setup > Settings > System > Location, otherwise there is no way to determine nighttime/daytime state.

There are two ways of creating dzVents event scripts in Domoticz:

  1. By creating lua scripts in your domoticz instance on your domoticz server: /path/to/domoticz/scripts/dzVents/scripts. Make sure that each script has the extension .lua and follows the guidelines as described below.
  2. By creating lua scripts inside Domoticz using the internal Domoticz event editor: Go to Setup > More Options > Events and set the event type to Lua (dzVents).

Note: scripts that you write on the filesystem and inside Domoticz using the internal web-editor all share the same namespace. That means that if you have two scripts with the same name, only the one of the filesystem will be used. The log will tell you when this happens.

Quickstart

If you made sure that dzVents system is active, we can do a quick test if everything works:

  • Pick a switch in your Domoticz system. Write down the exact name of the switch. If you don't have a switch then you can create a Dummy switch and use that one.
  • Create a new file in the /path/to/domoticz/scripts/dzVents/scripts/ folder (or using the web-editor in Domoticz, swtich to dzVents mode first.). Call the file test.lua. Note: when you create a script in the web-editor you do not add the .lua extension! Also, valid script names follow the same rules as filesystem names.
  • Open test.lua in an editor and fill it with this code and change <exact name of the switch> with the .. you guessed it... exact name of the switch device:

     return {
        active = true,
        on = {
            devices = {
                '<exact name of the switch>'
            }
        },
        execute = function(domoticz, switch)
            if (switch.state == 'On') then
                domoticz.log('Hey! I am on!')
            else
                domoticz.log('Hey! I am off!')
            end
        end
    }
  • Save the script
  • Open the Domoticz log in the browser
  • In Domoticz GUI (perhaps in another browser tab) press the switch.
  • You can watch the log in Domoticz and it should show you that indeed it triggered your script and you should see the log messages.

See the examples folder /path/to/domoticz/scripts/dzVents/examples for more examples.

Writing scripts

In order for your scripts to work with dzVents, they have to be turned into a Lua module. Basically you make sure it returns a Lua table (object) with predefined keys like active, on and execute.. Here is an example:

return {
    active = true,
    on = {
        devices = {
            'My switch'
        }
    },
    execute = function(domoticz, device)
        -- your script logic goes here, something like this:

        if (device.state == 'On') then
            domoticz.notify('I am on!', '', domoticz.PRIORITY_LOW)
        end
    end
}

Simply said, if you want to turn your existing script into a script that can be used with dzVents, you put it inside the execute function.

So, the module returns a table with these sections (keys):

return {
    active = ... ,
    on = {
        devices = { ... },
        variables = { ... },
        timer = { ... },
        security = { ... }
    },
    data = { ... },
    execute = function(domoticz, device, triggerInfo)
        ...
    end
}

Sections in the script

As you can see in the example above, the script has a couple of sections necessary for the script to do what you want and when:

active = true/false (optional)

If active is false, then the script is not activated. dzVents will ignore the file completely. If you don't have an active specified, true is assumed. This is handy if you write scripts using Domoticz' internal script editor, as it has its own way of activating and deactivating scripts.

The active setting can either be:

  • true: the script file will be processed.
  • false: the script file is ignored.
  • function: A function returning true or false. The function will receive the domoticz object with all the information about your domoticz instance: active = function(domoticz) .... end. For example, you could check for a Domoticz variable or switch and prevent the script from being executed. However, be aware that for every script in your scripts folder, this active function will be called, every cycle!! Therefore, it is better to put all your logic in the execute function instead of in the active function.

on = { ... }

The on section holds all the events/triggers that are monitored by dzVents. If any of the events or triggers match with the current event coming from Domoticz, then the execute part of the script is executed. The on section has five kinds of subsections that can all be used simultaneously! :

  • devices = { ...}: this is a list of devices. Each device can be:
    • The name of your device between string quotes. You can use the asterisk (*) wild-card here e.g. PIR_* or *_PIR. E.g.: devices = { 'myDevice', 'anotherDevice', 123, 'pir*' }
    • The index (idx) of your device (the name may change, the index will usually stay the same, the index can be found in the devices section in Domoticz),
    • The name or idx of your device followed by a time constraint, such as:
      • ['myDevice'] = { 'at 15:*', 'at 22:** on sat, sun' } The script will be executed if myDevice was changed, and it is either between 15:00 and 16:00 or between 22:00 and 23:00 in the weekend.
  • scenes = { ... }: a list of scenes. The same rules as devices apply.
  • groups = { ... }: a list of groups. The same rules as devices apply.
  • timer = { ... }: a list of time triggers like every minute or at 17:*. See below.
  • variables = { ... }: a list of user variables as defined in Domoticz ( Setup > More options > User variables). If any of the variables listed here change, the script is executed.
  • security = { domoticz.SECURITY_ARMEDAWAY, domoticz.SECURITY_ARMEDHOME, domoticz.SECURITY_DISARMED}: a list of one or more security states. If the security state in Domoticz changes and it matches with any of the states listed here, the script will be executed. See /path/to/domoticz/scripts/dzVents/examples/templates/security.lua for an example. See Security Panel for information about how to create a security panel device.

execute = function(domoticz, device/variable/scene/group, triggerInfo) ... end

When all the above conditions are met (active == true and the on section has at least one matching rule), this function is called. This is the heart of your script. The function receives three possible parameters:

  • the domoticz object. This gives access to almost everything in your Domoticz system, including all methods to manipulate them — like modifying switches or sending notifications. More about the domoticz object below.
  • the actual device, variable, scene or group that was defined in the on part and caused the script to be called. Note: If the script was triggered by a timer event or a security change event, this parameter is nil! You may have to test for this in your code if your script is triggered by timer events AND device events
  • information about what triggered the script. This is a small table with two keys:
    • triggerInfo.type (domoticz.EVENT_TYPE_TIMER, domoticz.EVENT_TYPE_DEVICE, domoticz.EVENT_TYPE_SECURITY, domoticz.EVENT_TYPE_SCENE, domoticz.EVENT_TYPE_GROUP or domoticz.EVENT_TYPE_VARIABLE): was the script executed due to a timer event, device change event, security change or user variable change event?
    • triggerInfo.trigger: the timer rule that triggered the script if the script was called due to a timer event, or the security state that triggered the security trigger rule. See below for the possible timer trigger options. Note: dzVents lists the first timer definition that matches the current time. If there are more timer triggers that could have been triggering the script, dzVents only picks the first for this trigger property.

data = { ... } (optional)

The optional data section allows you to define variables that will persist between script runs. These variables can get a value in your execute function (e.g. domoticz.data.previousTemperature = device.temperature). The next time the script is executed this value is again available in your code (e.g. if (domoticz.data.previousTemperature < 20) then .... For more info see the section Persistent data. Note that this functionality is experimental. It can be a bit fragile, so don't let your entire domoticz system depend on the current state of these variables.

logging = { ... } (optional)

The optional logging section allows you to override the global logging setting of dzVents as set in Setup > Settings > Other > EventSystem > dzVents Log Level. This can be handy when you only want this script to have extensive debug logging while the rest of your script executes silently. You have these options:

  • level: This is the log level you want for this script. Can be domoticz.LOG_INFO, domoticz.LOG_MODULE_EXEC_INFO, domoticz.LOG_DEBUG or domoticz.LOG_ERROR
  • marker: A string that is prefixed before each log message. That way you can easily create a filter in the Domoticz log to see just these messages.

Example:

logging = {
    level = domoticz.LOG_DEBUG,
    marker = "Hey you"
    },

Some trigger examples

Device changes

Suppose you have two devices — a smoke detector 'myDetector' and a room temperature sensor 'roomTemp', and you want to send a notification when either the detector detects smoke or the temperature is too high:

return {
    active = true,
    on = {
        devices = {
            'myDetector',
            'roomTemp'
        }
    },
    execute = function(domoticz, device)
        if ((device.name == 'myDetector' and device.state == 'On') or
            (device.name == 'roomTemp' and device.temperature >= 45)) then
            domoticz.notify('Fire', 'The room is on fire', domoticz.PRIORITY_EMERGENCY)
        end
    end
}

Scene / group changes

Suppose you have a scene 'myScene' and a group 'myGroup', and you want to turn on the group as soon as myScene is activated:

return {
    active = true,
    on = {
        scenes = {
            'myScene'
        }
    },
    execute = function(domoticz, scene)
        if (scene.state == 'On') then
            domoticz.groups('myGroup').switchOn()
        end
    end
}

Or, if you want to send an email, only at night, when a group is activated:

return {
    active = true,
    on = {
        groups = {
            ['myGroup'] = {'at nighttime'}
        }
    },
    execute = function(domoticz, group)
        if (group.state == 'On') then
            domoticz.email('Hey', 'The group is on', '[email protected]')
        end
    end
}

Timer events

Suppose you want to check the soil humidity every 30 minutes during the day and every hour during the night:

return {
    active = true,
    on = {
        timer = {
            'every 30 minutes at daytime',
            'every 60 minutes at nighttime'
        }
    },
    execute = function(domoticz, group)
        if (domoticz.devices('soil').moisture > 100) then
            domoticz.devices('irrigation').switchOn().forMin(60)
        end
    end
}

Variable changes

Suppose you have a script that updates a variable 'myAmountOfMoney', and if that variable reaches a certain level you want to be notified:

return {
    active = true,
    on = {
        variables = { 'myAmountOfMoney' }
    },
    execute = function(domoticz, variable)
        -- variable is the variable that's triggered
        if (variable.value > 1000000) then
            domoticz.notify('Rich', 'You can stop working now', domoticz.PRIORITY_HIGH)
        end
    end
}

Security changes

Suppose you have a group holding all the lights in your house, and you want to switch it off as soon as the alarm is activated:

return {
    active = true,
    on = {
        security = { domoticz.SECURITY_ARMEDAWAY }
    },
    execute = function(domoticz)
        domoticz.groups('All lights').switchOff()
    end
}

timer trigger options

There are several options for time triggers. It is important to know that Domoticz timer events only trigger once every minute, so one minute is the smallest interval for your timer scripts. However, dzVents gives you many options to have full control over when and how often your timer scripts are called (all times are in 24hr format):

on = {
    timer = {
        'every minute',              -- causes the script to be called every minute
        'every other minute',        -- minutes: xx:00, xx:02, xx:04, ..., xx:58
        'every <xx> minutes',        -- starting from xx:00 triggers every xx minutes
                                     -- (0 > xx < 60)
        'every hour',                -- 00:00, 01:00, ..., 23:00  (24x per 24hrs)
        'every other hour',          -- 00:00, 02:00, ..., 22:00  (12x per 24hrs)
        'every <xx> hours',          -- starting from 00:00, triggers every xx
                                     -- hours (0 > xx < 24)
        'at 13:45',                  -- specific time
        'at *:45',                   -- every 45th minute in the hour
        'at 15:*',                   -- every minute between 15:00 and 16:00
        'at 12:45-21:15',            -- between 12:45 and 21:15. You cannot use '*'!
        'at 19:30-08:20',            -- between 19:30 and 8:20 then next day
        'at 13:45 on mon,tue',       -- at 13:45 only on Mondays and Tuesdays (english)
        'every hour on sat',         -- you guessed it correctly
        'at sunset',                 -- uses sunset/sunrise info from Domoticz
        'at sunrise',
        'at sunset on sat,sun',
        'xx minutes before sunset',
        'xx minutes after sunset',
        'xx minutes before sunrise',
        'xx minutes after sunrise'   -- guess ;-)
        'between aa and bb'          -- aa/bb can be a time stamp like 15:44
                                     -- aa/bb can be sunrise/sunset
                                     -- aa/bb can be 'xx minutes before/after
                                        sunrise/sunset'
        'at nighttime',              -- between sunset and sunrise
        'at daytime',                -- between sunrise and sunset
        'at daytime on mon,tue',     -- between sunrise and sunset
                                        only on Mondays and Tuesdays

        -- or if you want to go really wild:
        'at nighttime at 21:32-05:44 every 5 minutes on sat, sun',
        'every 10 minutes between 20 minutes before sunset and 30 minutes after sunrise on mon,fri,tue'

        -- or just do it yourself:
        function(domoticz)
            -- you can use domoticz.time to get the current time
            -- note that this function is called every minute!
            -- custom code that either returns true or false
            ...
        end
   },
}

If using multiple types of timer trigger, you must not combine momentary triggers with range triggers. It doesn't make sense to combine a moment with a 'every xx minutes'Expert edit needed here.

One important note: if Domoticz, for whatever reason, skips a timer event then you may miss the trigger! Therefore, you should build in some fail-safe checks or some redundancy if you have critical time-based stuff to control. There is nothing dzVents can do about it

Another important issue: the way it is implemented right now, the every xx minutes and every xx hours is a bit limited. The interval resets at every *:00 (for minutes) or 00:* for hours. You need an interval that is an integer divider of 60 (or 24 for the hours). So you can do every 1, 2, 3, 4, 5, 6, 10, 12, 15, 20 and 30 minutes only.

The domoticz object

Without dzVents, device information was scattered around in a dozen global Lua tables like otherdevices or devicechanged. That approach required a lot of code to collect all this information and build logic around it. In addition, when you wanted to update devices you had to fill commandArray with often low-level stuff in order to make it work. Fear no more! The most interesting part of dzVents comes to the rescue: the domoticz object.

The domoticz object contains everything that you need to know in your scripts and all the methods to manipulate your devices and sensors. Getting this information is easy:

domoticz.time.isDayTime or domoticz.devices('My sensor').temperature or domoticz.devices('My sensor').lastUpdate.minutesAgo.

This object structure contains all the information logically arranged. Also, it harbors methods to manipulate Domoticz or devices. dzVents will create the commandArray contents for you, and all you have to do is something like domoticz.devices(123).switchOn().forMin(5).afterSec(10) or domoticz.devices('My dummy sensor').updateBarometer(1034, domoticz.BARO_THUNDERSTORM).

The intention is that you don't have to construct low-level commandArray commands for Domoticz anymore! The domoticz object tries to encapsulate every low-level commandArray command into a nice API. If there is still something missing, please file a report in the Domoticz issue tracker on GitHub. Until that issue is resolved, you can always use the sendCommand method which will dispatch the command to commandArray.

One tip: Make sure that all your devices have unique names!! dzVents will give you warnings in the logs if device names are not unique.

Domoticz object API

The domoticz object holds all information about your Domoticz system. It has global attributes and methods to query and manipulate your system. It also has a collection of devices, variables (user variables in Domoticz), scenes, groups and when applicable, a collection of changedDevices and changedVariables. Each of these has three iterator functions: forEach(function), filter(function) and reduce(function) to make searching for devices easier. See Looping through the collections: iterators below.

Domoticz attributes and methods

  • changedDevices(idx/name): Function. A function returning the device by idx (or name). To iterate over all changed devices do: domoticz.changedDevices().forEach(..). See Looping through the collections: iterators. Note that you cannot do for i, j in pairs(domoticz.changedDevices()) do .. end.
  • changedVariables(idx/name): Function. A function returning the user variable by idx or name. To iterate over all changed variables do: domoticz.changedVariables().forEach(..). See Looping through the collections: iterators. Note that you cannot do for i, j in pairs(domoticz.changedVariables()) do .. end.
  • devices(idx/name): Function. A function returning a device by idx or name: domoticz.devices(123) or domoticz.devices('My switch'). See Device object API below. To iterate over all devices do: domoticz.devices().forEach(..). See Looping through the collections: iterators. Note that you cannot do for i, j in pairs(domoticz.devices()) do .. end.
  • email(subject, message, mailTo): Function. Send email.
  • groups(idx/name): Function: A function returning a group by name or idx. Each group has the same interface as a device. To iterate over all groups do: domoticz.groups().forEach(..). See Looping through the collections: iterators. Note that you cannot do for i, j in pairs(domoticz.groups()) do .. end.
  • helpers: Table. Collection of shared helper functions available to all your dzVents scripts. See Creating shared helper functions.
  • log(message, [level]): Function. Creates a logging entry in the Domoticz log but respects the log level settings. You can provide the loglevel: domoticz.LOG_INFO, domoticz.LOG_DEBUG, domoticz.LOG_ERROR or domoticz.LOG_FORCE. In Domoticz settings you can set the log level for dzVents.
  • notify(subject, message, priority, sound, extra, subsystem): Function. Send a notification (like Prowl). Priority can be like domoticz.PRIORITY_LOW, PRIORITY_MODERATE, PRIORITY_NORMAL, PRIORITY_HIGH, PRIORITY_EMERGENCY. For sound see the SOUND constants below. subsystem can be a table containing one or more notification subsystems. See domoticz.NSS_xxx types.
  • openURL(url): Function. Have Domoticz 'call' a URL.
  • round(number, decimalPlaces): Function. Helper function to round numbers.
  • scenes(idx/name): Function: A function returning a scene by name or id. Each scene has the same interface as a device. See Device object API. To iterate over all scenes do: domoticz.scenes().forEach(..). See Looping through the collections: iterators. Note that you cannot do for i, j in pairs(domoticz.scenes()) do .. end.
  • security: Holds the state of the security system e.g. Armed Home or Armed Away.
  • sendCommand(command, value): Generic (low-level)command method (adds it to the commandArray) to the list of commands that are being sent back to domoticz. There is likely no need to use this directly. Use any of the device methods instead (see below).
  • sms(message): Function. Sends an sms if it is configured in Domoticz.
  • startTime: Time Object. Returns the startup time of the Domoticz service.
  • systemUptime: Number. Number of seconds the system is up.
  • time: Time Object: Current system time. Additional to Time object attributes:
    • isDayTime
    • isNightTime
    • isToday: Boolean. Indicates if the device was updated today
    • sunriseInMinutes: Number. Number of minutes since midnight when the sun will rise.
    • sunsetInMinutes: Number. Number of minutes since midnight when the sun will set.
  • toCelsius(f, relative): Function. Converts temperature from Fahrenheit to Celsius along the temperature scale or when relative==true it uses the fact that 1F==0.56C. So toCelsius(5, true) returns 5F*(1/1.8) = 2.78C.
  • urlEncode(s, [strSub]): Functon. Simple url encoder for string so you can use them in openURL(). strSub is optional and defaults to + but you can also pass %20 if you like/need.
  • variables(idx/name): Function. A function returning a variable by it's name or idx. See Variable object API for the attributes. To iterate over all variables do: domoticz.variables().forEach(..). See Looping through the collections: iterators. Note that you cannot do for i, j in pairs(domoticz.variables()) do .. end.

Looping through the collections: iterators

The domoticz object has these collections (tables): devices, scenes, groups, variables, changedDevices and changedVariables. In order to make iterating over these collections easier, dzVents has three iterator methods so you no longer need to use the pair() or ipairs() function:

  1. find(function): Returns the item in the collection for which function returns true. When no item is found find returns nil.
  2. forEach(function): Executes function once per array element. The function receives the item in the collection (device or variable). If the function returns false then the loop is aborted.
  3. filter(function): returns items in the collection for which the function returns true.
  4. reduce(function, initial): Loop over all items in the collection and do some calculation with it. You call it with the function and the initial value. Each iteration the function is called with the accumulator and the item in the collection. The function does something with the accumulator and returns a new value for it.

Examples:

find():

local myDevice = domoticz.devices().find(function(device)
    return device.name == 'myDevice'
end)
domoticz.log('Id: ' .. myDevice.id)

forEach():

domoticz.devices().forEach(function(device)
    if (device.batteryLevel < 20) then
        -- do something
    end
end)

filter():

local deadDevices = domoticz.devices().filter(function(device)
    return (device.lastUpdate.minutesAgo > 60)
end)
deadDevices.forEach(function(zombie)
    -- do something
end)

Of course you can chain:

domoticz.devices().filter(function(device)
    return (device.lastUpdate.minutesAgo > 60)
end).forEach(function(zombie)
    -- do something with the zombie
end)

Using a reducer to count all devices that are switched on:

local count = domoticz.devices().reduce(function(acc, device)
    if (device.state == 'On') then
        acc = acc + 1 -- increase the accumulator
    end
    return acc -- always return the accumulator
end, 0) -- 0 is the initial value for the accumulator

Constants

The domoticz object has these constants available for use in your code e.g. domoticz.LOG_INFO:

  • ALERTLEVEL_GREY, ALERTLEVEL_GREEN, ALERTLEVEL_ORANGE, ALERTLEVEL_RED, ALERTLEVEL_YELLOW: for updating text sensors.
  • BARO_CLOUDY, BARO_CLOUDY_RAIN, BARO_STABLE, BARO_SUNNY, BARO_THUNDERSTORM, BARO_NOINFO, BARO_UNSTABLE: for updating barometric values.
  • EVENT_TYPE_DEVICE, EVENT_TYPE_VARIABLE, EVENT_TYPE_SECURITY, EVENT_TYPE_TIMER: triggerInfo types passed to the execute function in your scripts.
  • EVOHOME_MODE_AUTO, EVOHOME_MODE_TEMPORARY_OVERRIDE, EVOHOME_MODE_PERMANENT_OVERRIDE: mode for EvoHome system.
  • HUM_COMFORTABLE, HUM_DRY, HUM_NORMAL, HUM_WET: constant for humidity status.
  • INTEGER, FLOAT, STRING, DATE, TIME: variable types.
  • LOG_DEBUG, LOG_ERROR, LOG_INFO, LOG_FORCE: for logging messages. LOG_FORCE is at the same level as LOG_ERROR.
  • NSS_GOOGLE_CLOUD_MESSAGING, NSS_HTTP, NSS_KODI, NSS_LOGITECH_MEDIASERVER, NSS_NMA,NSS_PROWL, NSS_PUSHALOT, NSS_PUSHBULLET, NSS_PUSHOVER, NSS_PUSHSAFER: for notification subsystem
  • PRIORITY_LOW, PRIORITY_MODERATE, PRIORITY_NORMAL, PRIORITY_HIGH, PRIORITY_EMERGENCY: for notification priority.
  • SECURITY_ARMEDAWAY, SECURITY_ARMEDHOME, SECURITY_DISARMED: for security state.
  • SOUND_ALIEN , SOUND_BIKE, SOUND_BUGLE, SOUND_CASH_REGISTER, SOUND_CLASSICAL, SOUND_CLIMB , SOUND_COSMIC, SOUND_DEFAULT , SOUND_ECHO, SOUND_FALLING , SOUND_GAMELAN, SOUND_INCOMING, SOUND_INTERMISSION, SOUND_MAGIC , SOUND_MECHANICAL, SOUND_NONE, SOUND_PERSISTENT, SOUND_PIANOBAR , SOUND_SIREN , SOUND_SPACEALARM, SOUND_TUGBOAT , SOUND_UPDOWN: for notification sounds.

Device object API

Each device in Domoticz can be found in the domoticz.devices() collection as listed above. The device object has a set of fixed attributes like name and idx. Many devices, however, have different attributes and methods depending on their (hardware) type, subtype and other device-specific identifiers. It is possible that you will get an error if you call a method on a device that doesn't support it, so please check the device properties to see which are supported (can also be done in your script code!).

dzVents recognizes most of the devices and creates the proper attributes and methods. It is possible that your device type has attributes that are not recognized; if that's the case, please create a ticket in the Domoticz issue tracker on GitHub, and an adapter for that device will be added.

Most of the time, the rawData attribute will hold all the data that are available in Domoticz, if your device is not recognized.

Device attributes and methods for all devices

  • active: Boolean. Is true for some common states like 'On' or 'Open' or 'Motion'. Same as bState.
  • batteryLevel: Number If applicable for that device then it will be from 0-100.
  • bState: Boolean. Is true for some common states like 'On' or 'Open' or 'Motion'. Better to use active.
  • changed: Boolean. True if the device was changed
  • description: String. Description of the device.
  • deviceId: String. Another identifier of devices in Domoticz. dzVents uses the id(x) attribute. See device list in Domoticz' settings table.
  • deviceSubType: String. See Domoticz devices table in Domoticz GUI.
  • deviceType: String. See Domoticz devices table in Domoticz GUI.
  • dump(): Function. Dump all attributes to the Domoticz log. This ignores the log level setting.
  • hardwareName: String. See Domoticz devices table in Domoticz GUI.
  • hardwareId: Number. See Domoticz devices table in Domoticz GUI.
  • hardwareType: String. See Domoticz devices table in Domoticz GUI.
  • hardwareTypeValue: Number. See Domoticz devices table in Domoticz GUI.
  • icon: String. Name of the icon in Domoticz GUI.
  • id: Number. Index of the device. You can find the index in the device list (idx column) in Domoticz settings. It's not truly an index but is unique enough for dzVents to be treated as an id.
  • idx: Number. Same as id: index of the device
  • lastUpdate: Time Object: Time when the device was updated.
  • name: String. Name of the device.
  • nValue: Number. Numerical representation of the state.
  • rawData: Table: All values are String types and hold the raw data received from Domoticz.
  • setState(newState): Function. Generic update method for switch-like devices. E.g.: device.setState('On'). Supports timing options. See below.
  • state: String. For switches, holds the state like 'On' or 'Off'. For dimmers that are on, it is also 'On' but there is a level attribute holding the dimming level. For selector switches (Dummy switch) the state holds the name of the currently selected level. The corresponding numeric level of this state can be found in the rawData attribute: device.rawData[1].
  • signalLevel: Number If applicable for that device then it will be from 0-100.
  • switchType: String. See Domoticz devices table in Domoticz GUI.
  • switchTypeValue: Number. See Domoticz devices table in Domoticz GUI.
  • timedOut: Boolean. Is true when the device couldn't be reached.
  • unit: Number. Device unit. See device list in Domoticz' settings for the unit.
  • update(< params >): Function. Generic update method. Accepts any number of parameters that will be sent back to Domoticz. There is no need to pass the device.id here. It will be passed for you. Example to update a temperature: device.update(0,12). This will eventually result in a commandArray entry ['UpdateDevice']='<idx>|0|12'

Device attributes and methods for specific devices

Note that if you do not find your specific device type here you can always inspect what is in the rawData attribute. Please lets us know that it is missing so we can write an adapter for it (or you can write your own and submit it). Calling myDevice.dump() will dump all attributes and values for myDevice to the Domoticz log.

Air quality

  • co2: Number. PPM
  • quality: String. Air quality string.
  • updateAirQuality(ppm): Pass the CO2 concentration.

Alert sensor

  • color: Number. Color of the alert. See domoticz color constants for possible values.
  • text: String
  • updateAlertSensor(level, text): Function. Level can be domoticz.ALERTLEVEL_GREY, ALERTLEVEL_GREEN, ALERTLEVEL_YELLOW, ALERTLEVEL_ORANGE, ALERTLEVEL_RED

Ampère, 1-phase

  • current: Number. Ampère.
  • updateCurrent(current): Function. Current in Ampère.

Ampère, 3-phase

  • current1, current2, current3 : Number. Ampère.
  • updateCurrent(current1, current2, current3): Function. Currents in Ampère.

Barometer sensor

  • barometer. Number. Barometric pressure.
  • forecast: Number.
  • forecastString: String.
  • updateBarometer(pressure, forecast): Function. Update barometric pressure. Forecast can be domoticz.BARO_STABLE, BARO_SUNNY, BARO_CLOUDY, BARO_UNSTABLE, BARO_THUNDERSTORM.

Counter and counter incremental

  • counter: Number
  • counterToday: Number. Today's counter value.
  • updateCounter(value): Function.
  • valueQuantity: String. For counters.
  • valueUnits: String.

Custom sensor

  • sensorType: Number.
  • sensorUnit: String:
  • updateCustomSensor(value): Function.

Distance sensor

  • distance: Number.
  • updateDistance(distance): Function.

Electric usage

  • WhActual: Number. Current Watt usage.
  • updateEnergy(energy): Function. In Watt.

Evohome

  • setPoint: Number.
  • updateSetPoint(setPoint, mode, until): Function. Update set point. Mode can be domoticz.EVOHOME_MODE_AUTO, EVOHOME_MODE_TEMPORARY_OVERRIDE or EVOHOME_MODE_PERMANENT_OVERRIDE. You can provide an until date (in ISO 8601 format e.g.: os.date("!%Y-%m-%dT%TZ")).

Gas

  • counter: Number
  • counterToday: Number.
  • updateGas(usage): Function.

Group

  • toggleGroup(): Toggles the state of a group.
  • switchOff(): Function. Supports timing options. See below.
  • switchOn(): Supports timing options. See below.

Humidity sensor

  • humidity: Number
  • humidityStatus: String
  • humidityStatusValue: Number. Value matches with domoticz.HUM_NORMAL, -HUM_DRY, HUM_COMFORTABLE, -HUM_WET.
  • updateHumidity(humidity, status): Update humidity. status can be domoticz.HUM_NORMAL, HUM_COMFORTABLE, HUM_DRY, HUM_WET

Kodi

  • kodiExecuteAddOn(addonId): Function. Will send an Execute Addon command sending no parameters. Addon IDs are embedded in the addon configuration and are not to be confused with the Addon Name. For example: http://forums.homeseer.com/showthread.php?p=1213403.
  • kodiPause(): Function. Will send a Pause command, only effective if the device is streaming.
  • kodiPlay(): Function. Will send a Play command, only effective if the device was streaming and has been paused.
  • kodiPlayFavorites([position]): Function. Will play an item from the Kodi's Favorites list optionally starting at position. Favorite positions start from 0 which is the default.
  • kodiPlayPlaylist(name, [position]): Function. Will play a music or video Smart Playlist with name optionally starting at position. Playlist positions start from 0 which is the default.
  • kodiSetVolume(level): Function. Set the volume for a Kodi device, 0 <= level <= 100.
  • kodiStop(): Function. Will send a Stop command, only effective if the device is streaming.
  • kodiSwitchOff(): Function. Will turn the device off if this is supported in settings on the device.

kWh, Electricity (instant and counter)

  • counterToday: Number.
  • updateElectricity(power, energy): Function.
  • usage: Number.
  • WhToday: Number. Total Wh usage of the day. Note the unit is Wh and not kWh!
  • WhTotal: Number. Total Wh usage.
  • WhActual: Number. Actual reading.

Leaf wetness

  • wetness: Number. Wetness value
  • updateWetness(wetness): Function.

Lux sensor

  • lux: Number. Lux level for light sensors.
  • updateLux(lux): Function.

OpenTherm gateway

  • setPoint: Number.
  • updateSetPoint(setPoint): Function.

P1 Smart meter

  • counterDeliveredToday: Number.
  • counterToday: Number.
  • usage1, usage2: Number.
  • return1, return2: Number.
  • updateP1(usage1, usage2, return1, return2, cons, prod): Function. Updates the device.
  • usage: Number.
  • usageDelivered: Number.

Percentage

  • percentage: Number.
  • updatePercentage(percentage): Function.

Philips Hue Light

See switch below.

Pressure

  • pressure: Number.
  • updatePressure(pressure): Function.

Rain meter

  • rain: Number
  • rainRate: Number
  • updateRain(rate, counter): Function.

Scale weight

  • weight: Number
  • udateWeight(): Function.

Scene

  • switchOn(): Function. Supports timing options. See below.

Security Panel

Create a security device:

  1. Set a security panel password in Domoticz settings.
  2. Activate the security panel (Setup > More Options > Security Panel and set it to Disarm (using your password)).
  3. Go to the device list in (Setup > Devices) where it should show the security panel device under 'Not used'.
  4. Add the device and give it a name.

Methods/attributes:

  • armAway(): Sets a security device to Armed Away. Supports timing options. See below.
  • armHome(): Sets a security device to Armed Home. Supports timing options. See below.
  • disarm(): Disarms a security device. Supports timing options. See below.
  • state: String: Same values as domoticz.security value.

Solar radiation

  • radiation. Number. In Watt/m².
  • updateRadiation(radiation): Function.

Soil moisture

  • moisture. Number. In centibars (cB).
  • updateSoilMoisture(moisture): Function.

Sound level

  • level. Number. In dB.
  • updateSoundLevel(level): Function.

Switch (dimmer, selector etc.)

There are many switch-like devices. Not all methods are applicable for all switch-like devices. You can always use the generic setState(newState) method.

  • close(): Function. Set device to Close if it supports it. Supports timing options. See below.
  • dimTo(percentage): Function. Switch a dimming device on and/or dim to the specified level. Supports timing options. See below.
  • lastLevel: Number. The level of a dimmer just before it was switched off. Note: lastLevel only shows you the previous level if you have a trigger for the device itself. So for instance you have a on-trigger for 'myDimmer' and the dimmer is set from 20% to 30%, in your script myDimmer.level == 30 and myDimmer.lastLevel == 20.
  • level: Number. For dimmers and other 'Set Level..%' devices this holds the level like selector switches.
  • levelActions: String. |-separated list of url actions for selector switches.
  • levelName: String. Current level name for selector switches.
  • levelNames: Table. Table holding the level names for selector switch devices.
  • maxDimLevel: Number.
  • open(): Function. Set device to Open if it supports it. Supports timing options. See below.
  • stop(): Function. Set device to Stop if it supports it (e.g. blinds). Supports timing options. See below.
  • switchOff(): Function. Switch device off it is supports it. Supports timing options. See below.
  • switchOn(): Function. Switch device on if it supports it. Supports timing options. See below.
  • switchSelector(level): Function. Switches a selector switch to a specific level (numeric value, see the edit page in Domoticz for such a switch to get a list of the values). Supports timing options. See below.
  • toggleSwitch(): Function. Toggles the state of the switch (if it is togglable) like On/Off, Open/Close etc.

Temperature sensor

  • temperature: Number
  • updateTemperature(temperature): Function. Note: temperature must be in Celsius. Use domoticz.toCelsius() to convert a Fahrenheit temperature to Celsius.

Temperature, Barometer sensor

  • barometer: Number
  • forecast: Number.
  • forecastString: String.
  • temperature: Number
  • updateTempBaro(temperature, pressure, forecast): Function. Forecast can be domoticz.BARO_STABLE, BARO_SUNNY, BARO_CLOUDY, BARO_UNSTABLE, BARO_THUNDERSTORM. Note: temperature must be in Celsius. Use domoticz.toCelsius() to convert a Fahrenheit temperature to Celsius.

Temperature, Humidity, Barometer sensor

  • barometer: Number
  • dewPoint: Number
  • forecast: Number.
  • forecastString: String.
  • humidity: Number
  • humidityStatus: String
  • humidityStatusValue: Number. Value matches with domoticz.HUM_NORMAL, -HUM_DRY, HUM_COMFORTABLE, -HUM_WET.
  • temperature: Number
  • updateTempHumBaro(temperature, humidity, status, pressure, forecast): Function. forecast can be domoticz.BARO_NOINFO, BARO_SUNNY, BARO_PARTLY_CLOUDY, BARO_CLOUDY, BARO_RAIN. status can be domoticz.HUM_NORMAL, HUM_COMFORTABLE, HUM_DRY, HUM_WET. Note: temperature must be in Celsius. Use domoticz.toCelsius() to convert a Fahrenheit temperature to Celsius.

Temperature, Humidity

  • dewPoint: Number
  • humidity: Number
  • humidityStatus: String
  • humidityStatusValue: Number. Value matches with domoticz.HUM_NORMAL, -HUM_DRY, HUM_COMFORTABLE, -HUM_WET.
  • temperature: Number
  • updateTempHum(temperature, humidity, status): Function. status can be domoticz.HUM_NORMAL, HUM_COMFORTABLE, HUM_DRY, HUM_WET. Note: temperature must be in Celsius. Use domoticz.toCelsius() to convert a Fahrenheit temperature to Celsius.

Text

  • text: String
  • updateText(text): Function*.

Thermostat set point

  • setPoint: Number.
  • updateSetPoint(setPoint):Function.

UV sensor

  • uv: Number. UV index.
  • updateUV(uv): Function. UV index.

Visibility

  • visibility: Number. In km.
  • updateVisibility(distance):Function*. In km.

Voltage

  • voltage: Number.
  • updateVoltage(voltage):Function*.

Waterflow

  • flow: Number. In L/m.
  • updateWaterflow(flow):Function*. In L/m.

Wind

  • chill: Number.
  • direction: Number. Degrees.
  • directionString: String. Formatted wind direction like N, SE.
  • gust: Number.
  • temperature: Number
  • speed: Number.
  • updateWind(bearing, direction, speed, gust, temperature, chill): Function. Bearing in degrees, direction in N, S, NNW etc, speed in m/s, gust in m/s, temperature and chill in Celsius. Use domoticz.toCelsius() to convert a Fahrenheit temperature to Celsius.

Zone heating

  • setPoint: Number.
  • heatingMode: String.

Z-Wave Thermostat mode

  • mode: Number. Current mode number.
  • modeString: String. Mode name.
  • modes: Table. Lists all available modes.
  • updateMode(modeString): Function. Set new mode.

Command options (delay, duration, event triggering)

Many dzVents device methods support extra options, like controlling a delay or a duration:

-- switch on for 2 minutes after 10 seconds
device.switchOn().afterSec(10).forMin(2)

-- switch on for 2 minutes after a randomized delay of 1-10 minutes
device.switchOff().withinMin(10).forMin(2)
device.close().forMin(15)
device.open().afterSec(20)
device.open().afterMin(2)

-- switch on but do not trigger follow up events
device.switchOn().silent()

-- flash a light 3 times
device.switchOn().forSec(2).repeatAfterSec(1, 3)

-- switch the device on but only if the current state isn't already on:
device.switchOn().checkFirst()
-- this is a short for:
if (device.state == 'Off') then
    devices.switchOn()
end

Options

  • afterHour(hours), afterMin(minutes), afterSec(seconds): Function. Activates the command after a certain number of hours, minutes or seconds.
  • checkFirst(): Function. Checks if the current state of the device is different than the desired new state. If the target state is the same, no command is sent. If you do mySwitch.switchOn().checkFirst(), then no switch command is sent if the switch is already on. This command only works with switch-like devices. It is not available for toggle and dim commands, either.
  • forHour(hours), forMin(minutes), forSec(seconds): Function. Activates the command for the duration of hours, minutes or seconds. See table below for applicability.
  • withinHour(hours), withinMin(minutes), withinSec(seconds): Function. Activates the command within a certain period (specified in hours, minutes or seconds) randomly. See table below for applicability.
  • silent(): Function. No follow-up events will be triggered: mySwitch.switchOff().silent().
  • repeatAfterHour(hours, [number]), repeatAfterMin(minutes, [number]), repeatAfterSec(seconds, [number]): Function. Repeats the sequence number times after the specified duration (specified in hours, minutes or seconds). If no number is provided, 1 is used.

Note that the actual switching or changing of the device is done by Domoticz and not by dzVents. dzVents only tells Domoticz what to do; if the options are not carried out as expected, this is likely a Domoticz or hardware issue.

Availability

Some options are not available to all commands. All the options are available to device switch-like commands like myDevice.switchOff(), myGroup.switchOn() or myBlinds.open(). For updating (usually Dummy) devices like a text device myTextDevice.updateText('zork') you can only use silent().

option state changes update commands user variables
afterXXX() n/a
forXXX() n/a n/a
withinXXX() n/a n/a
silent()
repeatAfterXXX() n/a n/a
checkFirst() switch-like devices n/a n/a

Follow-up event triggers

Normally if you issue a command, Domoticz will immediately trigger follow-up events, and dzVents will automatically trigger defined event scripts. If you trigger a scene, all devices in that scene will issue a change event. If you have event triggers for these devices, they will be executed by dzVents. If you don't want this to happen, add .silent() to your commands.

Create your own device adapter

If your device is not recognized by dzVents, you can still operate it using the generic device attributes and methods. It is much nicer, however, to have device specific attributes and methods. Existing, recognized, adapters are in /path/to/domoticz/dzVents/runtime/device-adapters. Copy an existing adapter and adapt it to your needs. You can turn debug logging on and inspect the file domoticzData.lua in the dzVents folder. There you will find the unique signature for your device type. Usually it is a combination of deviceType and deviceSubType, but you can use any of the device attributes in the matches function. The matches function checks if the device type is suitable for your adapter and the process function actually creates your specific attributes and methods. Also, if you call myDevice.dump() you will see all attributes and methods and the attribute _adapters shows you a list of applied adapters for that device. Finally, register your adapter in Adapters.lua. Please share your adapter when it is ready and working.

Variable object API (user variables)

User variables created in Domoticz have these attributes and methods:

Variable attributes and methods

  • changed: Boolean. Was the device changed.
  • date: Date. If type is domoticz.DATE. See lastUpdate for the sub-attributes.
  • id: Number. Index of the variable.
  • lastUpdate: Time Object
  • name: String. Name of the variable
  • set(value): Tells Domoticz to update the variable. Supports timing options. See above.
  • time: Date. If type is domoticz.TIME. See lastUpdate for the sub-attributes.
  • type: String. Can be domoticz.INTEGER, domoticz.FLOAT, domoticz.STRING, domoticz.DATE, domoticz.TIME.
  • value: String|Number|Date|Time. Value of the variable.

Time object

Many attributes represent a moment in time, like myDevice.lastUpdate or domoticz.time. In dzVents, a time-like attribute is an object with properties and methods which make your life easier.

    print(myDevice.lastUpdate.minutesAgo)
    print(myDevice.lastUpdate.daysAgo)

    -- compare two times
    print(domoticz.time.compare(myDevice.lastUpdate).secs))

You can also create your own:

    local Time = require('Time')
    local t = Time('2016-12-12 07:35:00') -- must be this format!!

If you don't pass a time string:

    local Time = require('Time')
    local currentTime = Time()

Use this in combination with the various dzVents time attributes:

    local Time = require('Time')
    local t = Time('2016-12-12 07:35:00')

    local tonight = Time(domoticz.time.rawDate .. ' 20:00:00')
    print (tonight.getISO())
    -- will print something like: 2016-12-12T20:00:00Z
    print(t.minutesAgo) -- difference from 'now' in minutes

    -- and you can feed it with all same rules as you use
    -- for the timer = { .. } section:
    if (t.matchesRule('at 16:00-21:00')) then
        -- t is in between 16:00 and 21:00
    end

    -- very powerful if you want to compare two time instances:
    local anotherTime = Time('...') -- fill-in some time here
    print(t.compare(anotherTime).secs) -- diff in seconds between t and anotherTime.

Time properties and methods

Creation:

local Time = require('Time')
local now = Time() -- current time
local someTime = Time('2017-12-31 22:19:15')
local utcTime = Time('2017-12-31 22:19:15', true)
  • compare(time): Function. Compares the current time object with another time object. Make sure you pass a Time object! Returns a table (all values are positive, use the compare property to see if time is in the past or future):
    • ms: Total difference in milliseconds.
    • secs: Total difference in whole seconds.
    • mins: Total difference in whole minutes.
    • hours: Total difference in whole hours.
    • days: Total difference in whole days.
    • compare: 0 = both are equal, 1 = time is in the future, -1 = time is in the past.
  • day: Number
  • daysAgo: Number
  • getISO: Function. Returns the ISO 8601 formatted date.
  • hour: Number
  • hoursAgo: Number. Number of hours since the last update.
  • isToday: Boolean. Indicates if the device was updated today
  • isUTC: Boolean.
  • matchesRule(rule) : Function. Returns true if the rule matches with the time. See time trigger options for rule examples.
  • min: Number
  • minutesAgo: Number. Number of minutes since the last update.
  • month: Number
  • msAgo: Number. Number of milliseconds since the last update.
  • raw: String. Generated by Domoticz
  • rawDate: String. Returns the date part of the raw data.
  • rawTime: String. Returns the time part of the raw data.
  • sec: Number
  • secondsSinceMidnight: Number
  • secondsAgo: Number. Number of seconds since the last update.
  • utcSystemTime: Table. UTC system time (only when in UTC mode):
    • day: Number
    • hour: Number
    • month: Number
    • min: Number
    • sec: Number
    • year: Number
  • utcTime: Table. Time stamp in UTC time:
    • day: Number
    • hour: Number
    • month: Number
    • min: Number
    • sec: Number
    • year: Number
  • year: Number

Note: it is currently not possible to change a time object instance.

Shared helper functions

It is not unlikely that at some point you want to share Lua code among your scripts. Normally in Lua you would have to create a module and require that module in all you scripts. But dzVents makes that easier for you: Inside your scripts folder, create a global_data.lua script (same as for global persistent data) and feed it with this code:

return {
    helpers = {
        myHandyFunction = function(param1, param2)
            -- do your stuff
        end
    }
}

Save the file and then you can use myHandyFunction everywhere in your event scripts:

return {
    ...
    execute = function(domoticz, device)
        local results = domoticz.helpers.myHandyFunction('bla', 'boo')
    end
}

No requires or dofiles needed.

Important note: if you need to access the domoticz object in your helper function you have to pass it as a parameter:

return {
    helpers = {
        myHandyFunction = function(domoticz, param1, param2)
            -- do your stuff
            domoticz.log('Hey')
        end
    }
}

And pass it along:

return {
    ...
    execute = function(domoticz, device)
        local results = domoticz.helpers.myHandyFunction(domoticz, 'bla', 'boo')
    end
}

Requiring your own modules

If you don't want to use the helpers support, but you want to require your own modules, place them either in /path/to/domoticz/scripts/dzVents/modules or /path/to/domoticz/scripts/dzVents/scripts/modules as these folders are already added to the Lua package path. You can just require those modules: local myModule = require('myModule')

Persistent data

In many situations you need to store a device state or other information in your scripts for later use. Like knowing what the state was of a device the previous time the script was executed or what the temperature in a room was 10 minutes ago. Without dzVents, you had to resort to user variables. These are global variables that you create in the Domoticz GUI and that you can access in your scripts like: domoticz.variables('previousTemperature').

Now, for some this is rather inconvenient and they want to control this state information in the event scripts themselves or want to use all of Lua's variable types. dzVents has a solution for that: persistent script data. This can either be on the script level or on a global level.

Script level persistent variables

The values in persistent script variables persist and can be retrieved in the next script run.

For example, send a notification if a switch has been activated 5 times:

    return {
        active = true,
        on = {
            devices = { 'MySwitch' }
        },
        data = {
            counter = {initial=0}
        },
        execute = function(domoticz, switch)
            if (domoticz.data.counter == 5) then
                domoticz.notify('The switch was pressed 5 times!')
                domoticz.data.counter = 0 -- reset the counter
            else
                domoticz.data.counter = domoticz.data.counter + 1
            end
        end
    }

The data section defines a persistent variable called counter. It also defines an initial value. From then on you can read and set the variable in your script.

You can define as many variables as you like and put whatever value in there that you like, but don't include functions.

Size matters and watch your speed!!

If you include tables (or arrays) in the persistent data, beware to not let them grow. It will definitely slow down script execution, because dzVents has to serialize and deserialize the data. It is better to use the historical option as described below.

Global persistent variables

Script level variables are only available in the scripts that define them, but global variables can be accessed and changed in every script. To utilize global persistent variables, create a script file called global_data.lua in your scripts folder with this content (same file where you can also put your shared helper functions):

    return {
        helpers = {},
        data = {
            peopleAtHome = { initial = false },
            heatingProgramActive = { initial = false }
        }
    }

Just define the variables that you need and access them in your scripts:

    return {
        active = true,
        on = {
            devices = {'WindowSensor'}
        },
        execute = function(domoticz, windowSensor)
            if (domoticz.globalData.heatingProgramActive
                and windowSensor.state == 'Open') then
                domoticz.notify("Hey don't open the window when the heating is on!")
            end
        end
    }

A special kind of persistent variables: history = true (Historical variables API)

In some situation, storing a previous value for a sensor is not enough, and you would like to have more previous values. For example, you want to calculate an average over several readings. Of course you can define a persistent variable holding a table:

    return {
        active = true,
        on = {
            devices = {'MyTempSensor'}
        },
        data = {
            previousData = { initial = {} }
        },
        execute = function(domoticz, sensor)
            -- add new data
            table.insert(domoticz.data.previousData, sensor.temperature)

            -- calculate the average
            local sum = 0, count = 0
            for i, temp in pairs(domoticz.data.previousData) do
                sum = sum + temp
                count = count + 1
            end
            local average = sum / count
        end
    }

The problem with this is that you have to do a lot of bookkeeping to make sure that there isn't too much data to store (see below for how it works). Fortunately, dzVents has done this for you:

    return {
        active = true,
        on = {
            devices = {'MyTempSensor'}
        },
        data = {
            temperatures = { history = true, maxItems = 10 }
        },
        execute = function(domoticz, sensor)
            -- add new data
            domoticz.data.temperatures.add(sensor.temperature)

            -- average
            local average = domoticz.data.temperatures.avg()

            -- maximum value in the past hour:
            local max = domoticz.data.temperatures.maxSince('01:00:00')
        end
    }

Defining

Define a script variable or global variable in the data section and set history = true:

…
data = {
    var1 = { history = true, maxItems = 10, maxHours = 1, maxMinutes = 5 }
}
  • maxItems: Number. Controls how many items are stored in the variable. maxItems has precedence over maxHours and maxMinutes.
  • maxHours: Number. Data older than maxHours from now will be discarded. E.g., if set to 2, then data older than 2 hours will be removed at the beginning of the script.
  • maxMinutes: Number. Same as maxHours but, you guessed it: for minutes this time.. All these options can be combined.

Reminder: don't store too much data. Only put in what you really need!

Add

Add new values to a historical variable:

domoticz.data.myVar.add(value)

As soon as this new value is put on top of the list, the older values shift one place down the line. If maxItems is reached, then the oldest value will be discarded. All methods, like calculating averages or sums, will immediately use this new value! If you don't want this to happen, set the new value at the end of your script or after you have done your analysis.

Any kind of data may be stored in the historical variable: numbers, strings, but also more complex data like tables. However, in order to use the statistical methods, numeric values are required.

Accessing values from historical variables

Values in a historical variable are indexed, where index 1 is the newest value, 2 is the second newest, and so on:

local item = domoticz.data.myVar.get(5)
print(item.data)

However, all data in the storage are time-stamped:

local item = domoticz.data.myVar.getLatest()
print(item.time.secondsAgo) -- access the time stamp
print(item.data) -- access the data

The time attribute by itself is a table with many properties that help you inspect the data points more easily. See Time Object for all attributes and methods.

Index

All data in the set can be addressed using an index. The item with index = 1 is the youngest, and the item with the highest index is the oldest. Beware, if you have called add() first, then the first item is that new value! You can always check the size of the set by inspecting myVar.size.

Time specification (timeAgo)

Every data point in the set has a timestamp and the set is ordered so that the youngest item is the first and the oldest item the last. Many functions require a moment in the past to be specified by passing a string in the format hh:mm:ss, where hh is the number of hours ago, mm the number of minutes and ss the number of seconds. The times are added together, so you don't have to consider 60 minute boundaries, etc. A time specification of 12:88:03 is valid, and points to the data point at or around 12*3600 + 88*60 + 3 = 48.483 seconds in the past. Example:

-- get average for the past 30 minutes:
local avg = myVar.avgSince('00:30:00')

Getting data points

  • get(idx): Returns the idx-th item in the set. Same as myVar.storage[idx].
  • getAtTime( timeAgo ): Returns the data point closest to the moment as specified by timeAgo. So, myVar.getAtTime('1:00:00') returns the item that is closest to one hour old. It may be a bit younger or a bit older than 1 hour.
  • getLatest( ): Returns the youngest item in the set. Same as print(myVar.get(1).data).
  • getOldest( ): Returns the oldest item in the set. Same as print(myVar.get(myVar.size).data).
  • size: Return the number of data points in the set.
  • subset( [fromIdx], [toIdx] ): Returns a subset of the stored data. Default value, if omitted, of fromIdx is 1. Omitting toIdx takes all items until the end of the set (oldest). myVar.subset() returns all data. The result set supports iterators forEach, filter, find and reduce.
  • subsetSince( timeAgo ): Returns a subset of the stored data since the relative time specified by timeAgo. Calling myVar.subsetSince('00:60:00') returns all items that have been added to the list in the past 60 minutes. The result set supports iterators forEach, filter, find and reduce.
  • reset( ): Removes all the items from the set. It could be a good practice to do this often when you know you don't need older data. For instance, when you turn on a heater and you just want to monitor rising temperatures starting from this moment when the heater is activated. If you don't need data points from before, then you may call reset.

Looping through the data: iterators

Similar to the iterators as described above, there are convenience methods to make looping through the data set easier.

  • forEach(function): Loop over all items in the set: E.g.: myVar.forEach( function( item, index, collection) ... end )
  • filter(function): Create a filtered set of items. The function receives the item and returns true if the item is in the result set. E.g. get a set with item values larger than 20: subset = myVar.filter( function (item) return (item.data > 20) end ).
  • find(function): Search for a specific item in the set: E.g. find the first item with a value higher than 20: local item = myVar.find( function (item) return (item.data > 20) end ).
  • reduce(function, initial): Loop over all items in the set and do some calculation with it. You call reduce with the function and the initial value. Each iteration the function is called with the accumulator. The function does something with the accumulator and returns a new value for it. Once you get the hang of it, it is very powerful. Best to give an example. To sum all values:

    local sum = myVar.reduce(function(acc, item)
        local value = item.data
        return acc + value
    end, 0)

To get data points older than 45 minutes and count the values that are higher than 20 (of course there are more ways to do this):

local myVar = domoticz.data.myVar

local olderItems = myVar.filter(function (item)
    return (item.time.minutesAgo > 45)
end)

local count = olderItems.reduce(function(acc, item)
    if (item.data > 20) then
        acc = acc + 1
    end
    return acc
end, 0)

print('Found ' .. tostring(count) .. ' items')

Statistical functions

Statistical functions require numerical data in the set. If the set is just numbers you can do this:

myVar.add(myDevice.temperature) -- adds a number to the set
myVar.avg() -- returns the average

If, however, you add more complex data or you want to do a computation first, then you have to tell dzVents how to get a numeric value from these data. So let's say you do this to add data to the set:

myVar.add( { 'person' = 'John', waterUsage = u })

Where u is a variable that got its value earlier. If you want to calculate the average water usage, then dzVents will not be able to do this because it doesn't know the value is actually in the waterUsage attribute! You will get nil.

To make this work you have to provide a getValue function in the data section when you define the historical variable:

return {
    active = true,
    on = {...},
    data = {
        myVar = {
            history = true,
            maxItems = 10,
            getValue = function(item)
                return item.data.waterUsage -- return number!!
            end
        }
    },
    execute = function()...end
}

This function tells dzVents how to get the numeric value for a data item. Note: the getValue function has to return a number!.

Of course, if you don't intend to use any of these statistical functions you can put whatever you want in the set.

  • avg( [fromIdx], [toIdx], [default] ): Calculates the average of all item values within the range fromIdx to toIdx. If no data are in the set, the value default will be returned instead of 0.
  • avgSince( timeAgo, default ): Calculates the average of all data points since timeAgo. Returns default if there are no data, otherwise 0. E.g.: local avg = myVar.avgSince('00:30:00') returns the average over the past 30 minutes.
  • min( [fromIdx], [toIdx] ): Returns the lowest value in the range defined by fromIdx and toIdx.
  • minSince( timeAgo ): Same as min but now within the timeAgo interval.
  • max( [fromIdx], [toIdx] ): Returns the highest value in the range defined by fromIdx and toIdx.
  • maxSince( timeAgo ): Same as max but within the timeAgo interval.
  • sum( [fromIdx], [toIdx] ): Returns the summation of all values in the range defined by fromIdx and toIdx. It will return 0 when there are no data.
  • sumSince( timeAgo ): Same as sum but within the timeAgo interval. It will return 0 when there are no data in the interval.
  • delta( fromIdx, toIdx, [smoothRange], [default] ): Returns the delta (difference) between items specified by fromIdx and toIdx. Provide a valid range (no nil values). Supports data smoothing when providing a smoothRange value. Returns default if there is not enough data.
  • deltaSince( timeAgo, [smoothRange], [default] ): Same as delta but within the timeAgo interval.
  • localMin( [smoothRange], default ): Returns the first minimum value (and the item holding the minimal value) in the past. Supports data smoothing when providing a smoothRange value. For example, given this range of values in the data set (from new to old): 10 8 7 5 3 4 5 6, it will return 3 because older values and newer values are higher: a local minimum. Use this if you want to know at what time a temperature started to rise after having been dropping. E.g.:

    local value, item = myVar.localMin()
    print(' minimum was : ' .. value .. ': ' .. item.time.secondsAgo .. ' seconds ago' )
  • localMax([smoothRange], default): Same as localMin but for the maximum value. Supports data smoothing when providing a smoothRange value.
  • smoothItem(itemIdx, [smoothRange]): Returns a the value of itemIdx in the set but smoothed by averaging with its neighbors. The number of neighbors is set by smoothRange. See Data smoothing.

Data smoothing

Example: Suppose you store temperatures in the historical variable. These temperatures may have extremes. Perhaps these extremes could be due to sensor reading errors. In order to reduce the effect of these so-called spikes, you could smooth out values. It is like blurring the data. The Raw column is your temperatures. The other columns are calculated by averaging the neighbors. For item 10 the calculations are:

Range=1 for time10 = (25 + 31 + 29) / 3 = 28,3
Range=2 for time10 = (16 + 25 + 31 + 29 + 26) / 5 = 25,4
Time Raw Range=1 Range=2
1 18 20,0 21,7
2 22 21,7 25,0
3 25 27,3 24,6
4 35 27,7 26,6
5 23 28,7 27,6
6 28 26,0 25,8
7 27 23,7 23,8
8 16 22,7 25,4
9 25 24,0 25,6
10 31 28,3 25,4
11 29 28,7 29,2
12 26 30,0 30,2
13 35 30,3 30,2
14 30 32,0 30,4
15 31 30,3 30,8
16 30 29,7 28,2
17 28 26,7 28,6
18 22 27,3 26,2
19 32 24,3 25,3
20 19 25,5 24,3

A graph illustrates it more clearly. The red line is not smoothed has more spikes than the others:

Smoothing

Usually a range of 1 or 2 is sufficient when providing a smoothing range to statistical functions. I suggest smoothing when checking deltas, local minimums and maximums.

How does the storage stuff work?

For every script file that defines persisted variables (using the data={ .. } section), dzVents will create storage file with the name __data_scriptname.lua in a subfolder called data. You can always delete these data files or the entire storage folder if there is a problem with it:

domoticz/
    scripts/
        dzVents/
            data/
                __data_yourscript1.lua
                __data_yourscript2.lua
                __data_global_data.lua
            examples/
            generated_scripts/
            scripts/
                yourscript1.lua
                yourscript2.lua
                global_data.lua

If you dare to, you can watch inside these files. Every time some data are changed, dzVents will stream the changes back into the data files. Again, make sure you don't put too much stuff in your persisted data as it may slow things down too much.

Settings

Settings for dzVents are found in the Domoticz GUI: Setup > Settings > Other > EventSystem:

  • dzVents disabled: Tick this if you don't want any dzVents script to be executed.
  • Log level: (Note that you can override this setting in the logging section of your script)
    • Errors,
    • Errors + minimal execution info: Errors and some minimal information about which script is being executed and why,
    • Errors + minimal execution info + generic info. Even more information about script execution and a bit more log formatting.
    • Debug. Shows everything and dzVents will create a file domoticzData.lua in the dzVents folder. This is a dump of all the data received by dzVents from Domoticz.. These data are used to create the entire dzVents data structure.
    • No logging. As silent as possible.

Troubleshooting

Is dzVents enabled?

Check the settings (see above) and make sure the checkbox dzVents disabled is not checked.

Is your script enabled?

Make sure the active section in your script is set to true: active = true. And, on top of that, if you are using the internal web editor to write your script, make sure that your script is active there and you have clicked Save! "Event active" is a separate checkbox that must be ticked for every active script. When not active, the script name will be red in the list on the right.

Turn on debug logging

Activate debug logging in the settings (see above). This will produce a lot of extra messages in the Domoticz log (don't forget to turn it off when you are done troubleshooting!). Best is to monitor the log through the command line as the log in the browser sometimes tends to not always show all log messages. See the Domoticz manual for how to do that.

When debug logging is enabled, every time dzVents kicks into action (Domoticz throws an event) it will log it, and it will create a file /path/to/domoticz/scripts/dzVents/domoticzData.lua with a dump of the data sent to dzVents. These data lie at the core of the dzVents object model. You can open this file in an editor to see if your device/variable/scene/group is in there. Note that the data in the file are not exactly the same as what you will get when you interact with dzVents, but it is a good start. If your device is not in the data file, then you will not have access to it in dzVents and dzVents will not be able to match triggers with that device. Something's wrong if you expect your device to be in there but it is not (is the device active/used?).

Every time Domoticz starts dzVents and debug logging is enabled you should see these lines:

dzVents version: x.y.z
Event trigger type: xxxx

Where xxxx can be time, device, uservariable, security or scenegroup. That should give you a clue what kind of event is active. If you don't see this information then dzVents is not active (or debug logging is not active).

Script is still not executed

If for some reason your script is not executed while all of the above is done, it is possible that your triggers are not correct. Either the time rule is not matching with the current time (try to set the rule to every minute or something simple), or the device name is not correct (check casing), or you use an id that doesn't exist. Note that in the on section, you cannot use the dzVents domoticz object!

Make sure that if you use an id in the on section that this id is correct. Go to the device list in Domoticz and find the device and make sure the device is in the 'used' list!. Unused devices will not create an event. Find the idx for the device and use that as the id.

Also, make sure that your device names are unique! dzVents will throw a warning in the log if multiple device names match. It's just best practice to have unique names for your devices. Use some clever naming like prefixing like 'Temperature: living room' or 'Lights: living room'. That also makes using wild cards on your on section easier.

If your script is still not triggered, you can try to create a classic Lua event script and see if that does work.

Debugging your script

A simple way to inspect a device in your script is to dump it to the log: myDevice.dump(). This will dump all the attributes (and more) of the device so you can inspect what its state is. Use print statements or domoticz.log() statements in your script at cricital locations to see if the Lua interpreter reaches that line. You can also use the lodash print command to print tables as that is now available with dzVents:

local _ = require('lodash')
_.print(myTable, 'Some value')

Don't try to print a device object though; use the dump() method for that.

If you place a print statement all the way at the top of your script file it will be printed every time dzVents loads your script (that is done at the beginning of each event cycle). Sometimes that is handy to see if your script gets loaded in the first place. If you don't see your print statement in the log, then likely dzVents didn't load it and it will not work.

Get help

The Domoticz forum is a great resource for help and solutions. Check the dzVents forum.

Other interesting stuff

Lodash for Lua

Lodash is a well known and very popular Javascript library filled with dozens of handy helper functions that really make you life a lot easier. Fortunately there is also a Lua version. All you have to do is require it in your code:

local _ = require('lodash')
_.print(_.indexOf({2, 3, 'x', 4}, 'x'))

Or if you want to have it available in all your scripts automatically (as a global), add this line at the top of your global_data.lua script:

_G._ = require('lodash') -- create a global _

Check out the great documentation here.

Migrating from version 1.x.x

As you can read in the change log below there are a couple of changes in 2.0 that will break older scripts.

The 'on={..}' section.

The on section needs the items to be grouped based on their type. Prior to 2.0 you had

    on = {
        'myDevice',
        'anotherDevice'
    }

In 2.x you have:

    on = {
        devices = {
            'myDevice',
            'anotherDevice'
        }
    }

The same for timer options, in 1.x.x:

    on = {
        ['timer'] = 'every 10 minutes on mon,tue'
    }

2.x:

    on = {
        timer = {
            'every 10 minutes on mon,tue'
        }
    }

Or when you have a combination, in 1.x.x

    on = {
            'myDevice',
            ['timer'] = 'every 10 minutes on mon,tue'
        }
    }

2.x:

    on = {
        devices = {
            'myDevice'
        }
        timer = {
            'every 10 minutes on mon,tue'
        }
    }

Getting devices, groups, scenes etc.

Prior to 2.x you did this to get a device:

    domoticz.devices['myDevice']
    domoticz.groups['myGroup']
    domoticz.scenes['myScene']
    domoticz.variables['myVariable']
    domoticz.changedDevices['myDevices']
    domoticz.changeVariables['myVariable']

Change that to:

    domoticz.devices('myDevice') -- a function call
    domoticz.groups('myGroup')
    domoticz.scenes('myScene')
    domoticz.variables('myVariable')
    domoticz.changedDevices('myDevices')
    domoticz.changeVariables('myVariable')

Looping through the devices (and other dzVents collections), iterators

Earlier you could do this:

    for i, device in pairs(domoticz.devices) do
        domoticz.log(device.name)
    end

In 2.x that is no longer possible. You now have to do this:

    domoticz.devices().forEach(function(device)
        domoticz.log(device.name)
    end)

The same applies for the other collections like groups, scenes, variables, changedDevices and changedVariables. Note that you can easily search for a device using iterators as well:

    local myDevice = domoticz.devices().find(function(device)
        return device.name == 'deviceImLookingFor'
    end)

For more information about these iterators see: Looping through the collections: iterators.

Timed commands

Prior to 2.0, to turn a switch off after 10 seconds:

    domoticz.devices['mySwitch'].switchOff().after_sec(10)

In 2.x:

    domoticz.devices('mySwitch').switchOff().afterSec(10)

The same applies for for_min and with_min.

Device attributes

One thing you have to check is that some device attributes are no longer formatted strings with units in there like WhToday. It is possible that you have some scripts that deal with strings instead of values.

Changed attributes

In 1.x.x you had a changedAttributes collection on a device. That is no longer there. Just remove it and just check for the device to be changed instead.

Using rawData

Prior to 2.x you likely used the rawData attribute to get to certain device values. With 2.x this is likely not needed anymore. Check the various device types above and check if there isn't a named attribute for you device type. dzVents 2.x uses so called device adapters which should take care of interpreting raw values and put them in named attributes for you. If you miss your device you can file a ticket or create an adapter yourself. See [[File:#Create_your_own_device_adapter|Create your own device adapter]].

What happened to fetch http data?

In 2.x it is no longer needed to make timed json calls to Domoticz to get extra device information into your scripts. Very handy. On the other hand, you have to make sure that dzVents can access the json without the need for a password because some commands are issued using json calls by dzVents. Make sure that in Domoticz settings under Local Networks (no username/password) you add 127.0.0.1 and you're good to go.

Change log

[2.3.0]

  • Added active attribute to devices (more logical naming than the attribute 'bState'). myDevice.active is true or false depending on a set of known state values (like On, Off, Open, Closed etc). Use like if mySwitch.active then .. end
  • Added domoticz.urlEncode method on the domoticz object so you can prepare a string before using it with openURL().
  • Updating devices, user variables, scenes and groups now always trigger the event system for follow-up events.
  • Added support for groups and scenes change-event scripts. Use on = { scenes = { 'myScene1', 'myScene2' }, groups = {'myGroup1'} }
  • Added adapter for the new Temperature+Barometer device.
  • Added domoticz.startTime giving you the time at which the Domoticz service was started. Returns a Time object.
  • Added domoticz.systemUptime (in seconds) indicating the number of seconds the machine is running. Returns a Time object.
  • Added more options to the various commands/methods: e.g. myDevice.switchOff().silent(), .forSec(), .forHour(), .afterHour(), .repeatAfterSec(), .repeatAfterMin(), .repeatAfterHour(), .withinHour() and .checkFirst(). This now works not only for devices but also scenes, groups and user variables. See documentation about command options.
  • Added .silent() option to commands like switchOn().afterSec(4).silent() causing no follow-up events to be triggered. This also works when updating non-switch-like devices, scenes, groups and user variables. If you do not call `silent()``, a follow-up event is always triggered (for devices, scenes, groups and user variables).
  • Added time rule between xx and yy. You can now do things like: between 16:34 and sunset or between 10 minutes before sunset and sunrise. See the doc.
  • Added support for milliseconds in Time object. This also give a ms part in the time-stamp for historical persistent data. You can now do msAgo() on time stamp when you inspect a data point from an history variable.
  • Added daysAgo() to Time object.
  • Added compare(time) method to Time object to calculate the difference between them. Returns a table. See documentation.
  • Added domoticz.round() method to domoticz object.
  • Added text property to alert sensor.
  • active section is now optional in your dzVents script. If you don't specify an active = true/false then true is assumed (script is active). Handy for when you use Domoticz' GUI script editor as it has its own way of activating and deactivating scripts.
  • Added humidityStatusValue for humidity devices. This value matches with the values used for setting the humidity status.
  • Time object will initialize to current time if nothing is passed: local current = Time().
  • Added the lua Lodash library (http://axmat.github.io/lodash.lua, MIT license).
  • Fixed documentation about levelNames for selector switches and added the missing levelName.
  • Moved dzVents runtime code away from the /path/to/domoticz/scripts/dzVents folder as this scripts folder contains user stuff.
  • Added more trigger examples in the documentation.
  • You can now put your own non-dzVents modules in your scripts folder or write them with the Domoticz GUI editor. dzVents is no longer bothered by it. You can require your modules in Lua's standard way.
  • Added /path/to/domoticz/scripts/dzVents/scripts/modules and /path/to/domoticz/scripts/dzVents/modules to the Lua package path for custom modules. You can now place your modules in there and require them from anywhere in your scripts.
  • Added dzVents-specific boilerplate/templates for internal web editor.
  • Fixed the confusing setting for enabling/disabling dzVents event system in Domoticz settings.
  • Fixed a problem where if you have two scripts for a device and one script uses the name and the other uses the id as trigger, the id-based script wasn't executed.

[2.2.0]

  • Fixed typo in the doc WActual > WhActual.
  • Updated switch adapter to match more switch-like devices.
  • Added Z-Wave Thermostat mode device adapter.
  • Fixed a problem with thermostat setpoint devices to issue the proper url when updating.
  • Added secondsSinceMidnight to time attributes (e.g. lastUpdate.secondsSinceMidnight)
  • Added 4 new time-rules: xx minutes before/after sunset/sunrise.
  • Added example script to fake user presence.
  • Fixed support for uservariables with spaces in their names.
  • Show a warning when an item's name isn't unique in the collection.
  • Added timing options for security methods armAway, armHome and disarm like device.armAway().afterSec(10).
  • Added idx, deviceId and unit to device objects. Don't confuse deviceId with device.id(x) which is actually the index of the device.
  • Added instructions on how to create a security panel device in Domoticz. This device now has a state that has the same value as domoticz.security.
  • Fixed bug in check battery levels example.
  • Fixed some irregularities with dimmer levels.

[2.1.1]

  • Fixed typo in the doc WActual > WhActual.
  • Updated switch adapter to match more switch-like devices.
  • Added Z-Wave Thermostat mode device adapter.
  • Fixed a problem with thermostat setpoint devices to issue the proper url when updating.

[2.1.0]

  • Added support for switching RGB(W) devices (including Philips/Hue) to have toggleSwitch(), switchOn() and switchOff() and a proper level attribute.
  • Added support for Ampère 1 and 3-phase devices
  • Added support for leaf wetness devices
  • Added support for scale weight devices
  • Added support for soil moisture devices
  • Added support for sound level devices
  • Added support for visibility devices
  • Added support for waterflow devices
  • Added missing color attribute to alert sensor devices
  • Added updateEnergy() to electric usage devices
  • Fixed casing for WhTotal, WhActual methods on kWh devices (Watt's in a name?)
  • Added toCelsius() helper method to domoticz object as the various update temperature methods all need celsius.
  • Added lastLevel for dimmers so you can see the level of the dimmer just before it was switched off (and while is it still on).
  • Added integration tests for full round-trip Domoticz > dzVents > Domoticz > dzVents tests (100 tests). Total tests (unit+integration) now counts 395!
  • Fixed setting uservariables. It still uses json calls to update the variable in Domoticz otherwise you won't get uservariable event scripts triggered in dzVents.
  • Added dzVents version information in the Domoticz settings page for easy checking what dzVents version is being used in your Domoticz built. Eventhough it is integrated with Domoticz, it is handy for dzVents to have it's own heartbeat.
  • avg(), avgSince(), sum() and sumSince() now return 0 instead of nil for empty history sets. Makes more sense.
  • Fixed boiler example to fallback to the current temperature when there is no history data yet when it calculates the average temperature.
  • Use different api command for setting setPoints in the Thermostat setpoint device adapter.

[2.0.0] Domoticz integration

  • Almost a complete rewrite.
  • BREAKING CHANGE: Accessing a device, scene, group, variable, changedDevice, or changedVariable has been changed: instead of doing domoticz.devices['myDevice'] you now have to call a function: domoticz.devices('myDevice'). This applies also for the other collections: domoticz.scenes(), domoticz.groups(), domoticz.changedDevices(), domoticz.changedVariables(). If you want to loop over these collection you can no longer use the standard Lua for..pairs or for..ipairs construct. You have to use the iterators like forEach, filter and reduce: domoticz.devices().forEach(function() .. end) (see Looping through the collections: iterators). This was a necessary change to make dzVents a whole lot faster in processing your event scripts. So please change your existing dzVents scripts!
  • BREAKING CHANGE: after_sec, for_min, after_min, within_min methods have been renamed to the camel-cased variants afterSec, forMin, afterMin, withinMin. Please rename the calls in your script.
  • BREAKING CHANGE: There is no longer an option to check if an attribute was changed as this was quite useless. The device has a changed flag. You can use that. Please change your existing scripts.
  • BREAKING CHANGE: Many device attributes are now in the appropriate type (Number instead of Strings) so you can easily make calculations with them. Units are stripped from the values as much as possible. Check your scripts as this may break stuff.
  • BREAKING CHANGE: on-section now requires subsections for devices, timer, variables, and security. The old way no longer works! Please convert your existing scripts!
  • BREAKING CHANGE: Make sure that in Domoticz settings under Local Networks (no username/password) you add 127.0.0.1 so dzVents can use Domoticz api when needed.
  • dzVents now works on Windows machines!
  • dzVents is no longer a separate library that you have to get from GitHub. All integrated into Domoticz.
  • Added option to create shared utility/helper functions and have them available in all your scripts. Simply add a helpers = { myFunction = function() ... end } to the global_data.lua file in your scripts folder and you can access the function everywhere: domoticz.helpers.myFunction().
  • Created a pluggable system for device adapters so people can easily contribute by creating specific adapters for specific devices. An adapter makes sure that you get the proper methods and attributes for that device. See /path/to/domoticz/scripts/dzVents/runtime/device-adapters.
  • Added a reduce() iterator to the collections in the domoticz object so you can now easily collect data about all your devices. See Looping through the collections: iterators.
  • Added a find() iterator so you can easily find an item in one of the collection (devices, scenes, groups etc.). See Looping through the collections: iterators.
  • Variables (uservariables) have more attributes. The value is now the same type as it is defined in Domoticz. So no more need for a converted nValue attribute. You can inspect the type using myVar.type. If it is a time variable or date variable you an extra date or time attribute with the same methods as with all other date/time related attributes like lastUpdate. .E.g. myVar.date.minutesAgo.
  • Settings are now moved to the Domoticz GUI (Setup > Settings > Other) and no longer in a settings file.
  • You can now override the log settings per script. So you can turn-off logging globally (see log level in the settings) and still have debug-level logging for that one script you are working on. You can even add a prefix string to the log messages for easy filtering in the Domoticz log. See the documentation about the logging = { .. } section.
  • No more need to do http-calls to get extended data from Domoticz. All relevant internal Domoticz state-data is now available inside your dzVents scripts. Thanks Scotty!!
  • Support for many many more device types and their specific methods. See the documentation for the list of attributes and events that are available. Note that device-type specific attributes are only available for those type of devices. You will receive an error in the log if you try to access an attribute that doesn't exist for that particular device. Hopefully you don't have to use the rawData table anymore. If you still do please file a report or create a device adapter yourself.
  • You can now write dzVents scripts using the internal editor in Domoticz. These scripts will be automatically exported to the filesystem (one-way only) so dzVents can execute them (generated_scripts folder). Thanks again Scotty!
  • Support for variable change events (on = { variables = { 'varA', 'varB'} })
  • Support for security change events (on = { security = { domoticz.SECURITY_ARMEDAWAY } })
  • The triggerInfo passed to the execute function now includes information about which security state triggered the script if it was a security event.
  • Extended the timer-rule with time range e.g. at 16:45-21:00 and at nighttime and at daytime and you can provide a custom function. See documentation for examples. The timer rules can be combined as well.
  • Timer rules for every xx minutes or every xx hours are now limited to intervals that will reach *:00 minutes or hours. So for minutes you can only do these intervals: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20 and 30. Likewise for hours.
  • The Time object (e.g. domoticz.time) now has a method matchesRule(rule). rule is a string same as you use for timer options: if (domoticz.time.matchesRule('at 16:32-21:33 on mon,tue,wed')) then ... end. The rule matches if the current system time matches with the rule.
  • A device trigger can have a time-rule constraint: on = { devices = { ['myDevice'] = 'at nighttime' } }. This only triggers the script when myDevice was changed and the time is after sunset and before sunrise.
  • Add support for subsystem selection for domoticz.notify function.
  • Fixed a bug where a new persistent variable wasn't picked up when that variable was added to an already existing data section.

[1.1.2]

  • More robust way of updating devices.lua
  • Added device level information for non-dimmer-like devices

[1.1.1]

  • Added support for a devices table in the 'on' section.
  • Added extra log level for only showing information about the execution of a script module.
  • Added example script for System-alive checker notifications (preventing false negatives).

[1.1]

  • Added example script for controlling the temperature in a room with hysteresis control.
  • Fixed updateLux (thanks to neutrino)
  • Added Kodi commands to the device methods.
  • Fixed updateCounter
  • Added counterToday and counterTotal attributes for counter devices. Only available when http fetching is enabled.

[1.0.2]

  • Added device description attribute.
  • Added support for setting the setpoint for opentherm gateway.
  • Added timedOut boolean attribute to devices. Requires http data fetching to be anabled.
  • Properly detects usage devices and their Wattage.

[1.0.1]

  • Added updateCustomSensor(value) method.
  • Fixed reset() for historical data.

[1.0][1.0-beta2]

  • Deprecated setNew(). Use add() instead. You can now add multiple values at once in a script by calling multiple add()s in succession.
  • Fixed printing device logs when a value was boolean or nil
  • Fixed WActual/total/today for energy devices.
  • Added updateSetPoint method on devices for dummy thermostat devices and EvoHome setpoint devices
  • Added couple of helper properties on Time object. See README.
  • Renamed the file dzVents_settings.lua to dzVents_settings_example.lua so you don't overwrite your settings when you copy over a new version of dzVents to your system.

[1.0-beta1]

  • Added data persistence for scripts between script runs (see readme for more info)
  • Added a time-line based data type for you scripts with historical information and many statistical functions for retreiving information like average, minumum, maximum, delta, data smoothing (averaging values over neighbours) etc. See readme for more information.
  • Added SMS method to the domoticz object.
  • Added toggleSwitch() method to devices that support it.
  • Added more switch states that control device.bState (e.g. on == true, open == true 'all on' == true)
  • Added secondsAgo to the lastUpdate attribute
  • Added tests (test code coverage is above 96%!)
  • Refactored code significantly.
  • Made sure differently formulated but equal triggers in one script only execute the script only once (like MySensor and MySensor_Temperature).
  • Added trigger info as a third parameter (Lua table) that is passed to the execute method of a script containing information about what exactly triggered the script (type = EVENT_TYPE_TIMER/EVENT_TYPE_DEVICE, trigger=<timer rule>). See readme.
  • Added Lua time properties to domoticz.time property with all information about the current time (hours, minutes, seconds, etc.)
  • Added option to return false in a forEach iteratee function which will abort the forEach loop.
  • All devices not delivered by Domoticz to the event scripts are now added to domoticz.devices using the http data that is fetched every 30 minutes (by default).
  • Added scenes and groups collections to the domoticz object
  • Added Quick Reference Guide.

[0.9.13]

  • Fixed some timer functions

[0.9.12]

  • Fixed a bug with log level printing. Now errors are printed.
  • Added setPoint, heatingMode, lux, WhTotal, WhToday, WActual attributes to devices that support it. No need to access rawData for these anymore.

[0.9.11]

  • Added log method to domoticz object. Using this to log message in the Domoticz log will respect the log level setting in the settings file. [dannybloe]
  • Updated readme. Better overview, more attributes described.
  • Added iterator functions (forEach and filter) to domoticz.devices, domoticz.changedDevices and domoticz.variables to iterate or filter more easily over these collections.
  • Added a couple of example scripts.

[0.9.10]

  • A little less verbose debug logging. Domoticz seems not to print all message in the log. If there are too many they may get lost. [dannybloe]
  • Added method fetchHttpDomoticzData to domoticz object so you can manually trigger getting device information from Domoticz through http. [dannybloe]
  • Added support for sounds in domiticz.notify(). [WebStarVenlo]

[0.9.9]

  • Fixed a bug where every trigger name was treated as a wild-carded name. Oopsidayzy...

[0.9.8]

  • Fixed a bug where a device can have underscores in its name.
  • Added dimTo(percentage) method to control dimmers.
  • Modified the switch-like commands to allow for timing options: .for_min(), .within_min(), after_sec() and after_min() methods to control delays and durations. Removed the options argument to the switch functions. See readme.
  • Added switchSelector method on a device to set a selector switch.
  • Added wild-card option for triggers
  • Added http request data from Domoticz to devices. Now you can check the battery level and switch type and more. Make sure to edit dzVents_settings.lua file first and check the readme for install instructions!!!
  • Added log level setting in dzVents_settings.lua

[0.9.7]

  • Added domoticz object resource structure. Updated readme accordingly. No more (or hardly any) need for juggling with all the Domoticz Lua tables and commandArrays.