Domoticz

Posted: **Wednesday 10 January 2018 14:45**

This Lua script gets the last update times for large numbers of devices and makes the time available as a variable name:

eg: MainBedroomLastUpdate

Then it's possible to do simple math as part of if statements, example:

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if (devicechanged["Main Bathroom"] == 'On' and MainBedroomLastUpdate > 5) then
commandArray['Living Room Left Blind'] = 'On'
end

In the above scenario, if Main Bathroom is turned on and it's been more than 5 seconds since Main Bedroom was last updated then it runs the command.

You enter device names to get last update times in the top of the script.

The last update variable name is the device name without spaces with "LastUpdate" on the end, eg: MainBedroomLastUpdate

The below example shows 3 devices in my script and printing their last update time in the Domoticz event log:

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-- Device Last Updates
t1 = os.time()
    devices = {
        "Main Entrance Hallway",
        "Main Bathroom",
        "Main Bedroom"
        }
    numdevices = 0 -- Count number of devices in the array
    for index in pairs(devices) do
        numdevices = numdevices + 1
    end
    for i = 1, numdevices do
    s = otherdevices_lastupdate[devices[i]]
    year = string.sub(s, 1, 4)
    month = string.sub(s, 6, 7)
    day = string.sub(s, 9, 10)
    hour = string.sub(s, 12, 13)
    minutes = string.sub(s, 15, 16)
    seconds = string.sub(s, 18, 19)
    t2 = os.time{year=year, month=month, day=day, hour=hour, min=minutes, sec=seconds}
    str = (devices[i] .. "LastUpdate")
    str = str:gsub("%s+", "")
    str = string.gsub(str, "%s+", "")
    _G[str] = (os.difftime (t1, t2))
    end

commandArray = {}

print(MainBedroomLastUpdate)
print(MainBathroomLastUpdate)
print(MainBedroomLastUpdate)

return commandArray

Now we can do cool stuff like:

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if (devicechanged["Main Bathroom"] == 'On' and MainBedroomLastUpdate > MainEntranceHallwayLastUpdate ) then

Domoticz event log:

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2018-01-11 00:43:25.946 LUA: 539
2018-01-11 00:43:25.946 LUA: 1488
2018-01-11 00:43:25.946 LUA: 539

Posted: **Wednesday 10 January 2018 16:17**

Or you use dzVents with Lua:

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return  {
	on = {
		devices = { 'bathroom' }
	},
	execute = function(domoticz, bathroom)
	
		local bedroom = domoticz.devices('bedroom')
		local hallway = domoticz.devices('hallway')
		
		if (bedroom.lastUpdate.secondsAgo > hallway.lastUpdate.secondsAgo) then
			-- do something
		end
	end
}

No need to do all that time stuff.

Posted: **Wednesday 10 January 2018 16:24**

DzVents while excellent is almost like a different programming language... there can be benefits starting out with it but for those of us using Lua / familiar with Lua scripting the above could be very useful.

Posted: **Wednesday 10 January 2018 16:27**

Or use pass2php and have less code

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if($status=='On'){
	if(past('bedroom')>past('hallway'){
		//do something
	}
}

Posted: **Wednesday 10 January 2018 16:34**

Egregius wrote: ↑Wednesday 10 January 2018 16:27 Or use pass2php and have less code
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if($status=='On'){
	if(past('bedroom')>past('hallway'){
		//do something
	}
}

Wow, that is a very simple way to do it!

We all have our favourite programming languages.

Posted: **Wednesday 10 January 2018 16:50**

ben53252642 wrote: ↑Wednesday 10 January 2018 16:34 Wow, that is a very simple way to do it!

That's one of the advantages of PHP.
And the millions of users worldwide of course.

Domoticz

Bulk device last update script

Bulk device last update script

Re: Bulk device last update script

Re: Bulk device last update script

Re: Bulk device last update script

Re: Bulk device last update script

Re: Bulk device last update script