Domoticz

Posted: **Monday 18 February 2019 22:12**

Hello..

is it possible to convert a value to percent..

if i get a value on my utility sensor from let´s say 0 - 270 but want to see that in percent instead..

like 270 is 100% and 0 is 0

is it any script for that to a dummy sensor? or any solution

Posted: **Monday 18 February 2019 22:37**

First create a virtual sensor of type 'percentage'. Lets say 'percentage'. Then create the following dzvents script to convert the value from 'sensor' 0 - 270 to a percentage value in sensor 'percentage'. Haven't tested the script btw. Might contain errors!

Code: Select all

return {

	-- 'active' controls if this entire script is considered or not
	active = true, -- set to false to disable this script

	-- trigger
	-- can be a combination:
	on = {
		devices = {
			-- scripts is executed if the device that was updated matches with one of these triggers
			'sensor',
		},

	},
    logging = {
--        level = domoticz.LOG_INFO,
        marker = "Converter"
    },    

	-- actual event code
	-- in case of a timer event or security event, device == nil
	execute = function(domoticz, device)
        domoticz.devices('percentage').updatePercentage(domoticz.utils.round((domoticz.devices('Sensor').nValue/270)*100),2)
	end
}

Posted: **Tuesday 19 February 2019 6:20**

Thanks!

I couldnt really make it work last night with that script. I just renamed sensor and percentage to the name of my devices, something else to do?

Posted: **Tuesday 19 February 2019 8:27**

Tarzan737 wrote: Tuesday 19 February 2019 6:20 Thanks!

I couldnt really make it work last night with that script. I just renamed sensor and percentage to the name of my devices, something else to do?

Not every sensor use nValue to store the measured value. What is the type / subtype of your sensor ? (look at the devices tab)
What do you see in the logfile ?

Posted: **Tuesday 19 February 2019 17:26**

it looks like this.. and i use denkovi daenetip4 hardware

Posted: **Tuesday 19 February 2019 18:40**

Tarzan737 wrote: Tuesday 19 February 2019 17:26 it looks like this.. and i use denkovi daenetip4 hardware

In this deviceType the value is stored in the sValue field. Can you test below script ?

Code: Select all

return {
	on = {
                devices =   {
                                'sensor'
                            },
        },
   
   logging = {
                level = domoticz.LOG_INFO,
                marker = "Converter"
             },    
    
    execute = function(dz, item)
        local dataFromSensor        = item.rawData[1]
        local maxValue              = 270
        local decimals              = 2 
        local percentage            = dataFromSensor / maxValue * 100
        local roundedPercentage     = dz.utils.round(percentage,decimals )
        local percentageDevice      = dz.devices('percentage')
        
        dz.log("Rounded percentage is " ..  roundedPercentage .. "%")
        percentageDevice.updatePercentage(roundedPercentage)
        
	end
}

Posted: **Tuesday 19 February 2019 21:27**

YEEESSS!! This seems to work!! Thank you very much for help..

if i want to have the opposite.. like value 0 is 100% instead.. because i don´t know how my new sensor works.. (haven`t recieved it)

value 1023 0% and value 0 100%

Posted: **Wednesday 20 February 2019 0:27**

Tarzan737 wrote: Tuesday 19 February 2019 21:27 YEEESSS!! This seems to work!! Thank you very much for help..

if i want to have the opposite.. like value 0 is 100% instead.. because i don´t know how my new sensor works.. (haven`t recieved it)

value 1023 0% and value 0 100%

set inverted = true in below script should do that

Code: Select all

return {
     on = {
                devices =   {
                                'sensor'
                            },
        },
   
   logging = {
                level = domoticz.LOG_INFO,
                marker = "Converter"
             },    
    
    execute = function(dz, item)
        local inverted              = false          -- if max value of sensor should be reflected in 0% and 0 in 100% 
        local dataFromSensor        = item.rawData[1]
        local maxValue              = 270
        local decimals              = 2 
        local percentage            = dataFromSensor / maxValue * 100
          
        if inverted then 
               percentage = 100 - percentage 
        end
          
        local roundedPercentage     = dz.utils.round(percentage,decimals )
        local percentageDevice      = dz.devices('percentage')
        
        dz.log("Rounded percentage is " ..  roundedPercentage .. "%")
        percentageDevice.updatePercentage(roundedPercentage)
        
     end
}

Posted: **Wednesday 20 February 2019 16:32**

Thank u very much!! it works fine!!

Posted: **Wednesday 27 February 2019 21:12**

Hello!!

i noticed that my 0 value not always is 0 when calibrating my sensors, it could be like 137 or something so the percentage will not
show correct.

i tried to add the line localMinvalue = 137 but nu success..

not that easy that i thought

Posted: **Wednesday 27 February 2019 23:53**

Tarzan737 wrote: Wednesday 27 February 2019 21:12 Hello!!

i noticed that my 0 value not always is 0 when calibrating my sensors, it could be like 137 or something so the percentage will not
show correct.

i tried to add the line localMinvalue = 137 but nu success..

not that easy that i thought

Could be something like this ? Adjust minValue to what you observe

Code: Select all

return {
     on = {
                devices =   {
                                'sensor'
                            },
        },
   
   logging = {
                level = domoticz.LOG_INFO,
                marker = "Converter"
             },    
    
    execute = function(dz, item)
        local inverted              = false          -- if max value of sensor should be reflected in 0% and 0 in 100% 
        local dataFromSensor        = item.rawData[1]
        local maxValue              = 270
        local decimals              = 2 
        local minValue              = 0
	local percentage            = ( dataFromSensor - minValue ) / maxValue * 100
          
        if inverted then 
               percentage = 100 - percentage 
        end
          
        local roundedPercentage     = dz.utils.round(percentage,decimals )
        local percentageDevice      = dz.devices('percentage')
        
        dz.log("Rounded percentage is " ..  roundedPercentage .. "%")
        percentageDevice.updatePercentage(roundedPercentage)
        
     end
}

Posted: **Thursday 28 February 2019 16:48**

Yepp!! seems to work! Thanks again

Posted: **Tuesday 05 March 2019 19:47**

hmm need help again

in my tank level sensor max value is 502 and min value 492

but it does not show correct at all, let´s say my sensor output is 499

with this formula ( dataFromSensor - minValue ) / maxValue * 100

it will take 499-492 = 7 then take 7/502 * 100

and the percentage is not correct..

any idea how to write the code?

Posted: **Tuesday 05 March 2019 22:48**

Tarzan737 wrote: Tuesday 05 March 2019 19:47 in my tank level sensor max value is 502 and min value 492
any idea how to write the code?

Sure but first need to understand

So 502 is 100% and 492 = 0% ?
Or do you mean something else ?

Posted: **Wednesday 06 March 2019 6:01**

Yepp! Correct. (In this case with tank level)

Posted: **Wednesday 06 March 2019 10:02**

Tarzan737 wrote: Wednesday 06 March 2019 6:01 Yepp! Correct. (In this case with tank level)

Can you test this ?

Code: Select all

return {
     on = {
                devices =   {
                                'sensor'
                            },
        },
   
   logging = {
                level = domoticz.LOG_INFO,
                marker = "Converter"
             },    
    
    execute = function(dz, item)
        local inverted              = false          -- if max value of sensor should be reflected in 0% and minValue in 100% 
        local dataFromSensor        = item.rawData[1]
        local maxValue              = 502
        local minValue              = 492
        local decimals              = 2 
        local percentage            = ( dataFromSensor - minValue ) / ( maxValue - minValue ) * 100
     
          
        if inverted then 
               percentage = 100 - percentage 
        end
          
        local roundedPercentage     = dz.utils.round(percentage,decimals )
        local percentageDevice      = dz.devices('percentage')
        
        dz.log("Rounded percentage is " ..  roundedPercentage .. "%")
        percentageDevice.updatePercentage(roundedPercentage)
        
     end
}

Posted: **Thursday 07 March 2019 20:11**

Yes that works as i wish, what should i do without you

thanks again

Posted: **Monday 06 April 2020 21:52**

Hello..
has anything changed with domoticz?

i cant make this code work anymore..

anyone knows why?

i use the same hardware (daenetip4)

Posted: **Monday 06 April 2020 21:57**

Tarzan737 wrote: Monday 06 April 2020 21:52 Hello..
has anything changed with domoticz?

Yes

i cant make this code work anymore..

Please supply some more background. What is your current domoticz version / OS / What do you see in the log / what does not work

Posted: **Monday 06 April 2020 22:01**

i think i did see now!! in options i had to check the box enable dz vents.. it should be the last version
had som hours just to make domoticz start again

Domoticz

Utility value to dummy percentage

Utility value to dummy percentage

Re: Utility value to dummy percentage

Re: Utility value to dummy percentage

Re: Utility value to dummy percentage

Re: Utility value to dummy percentage

Re: Utility value to dummy percentage

Re: Utility value to dummy percentage

Re: Utility value to dummy percentage

Re: Utility value to dummy percentage

Re: Utility value to dummy percentage

Re: Utility value to dummy percentage

Re: Utility value to dummy percentage

Re: Utility value to dummy percentage

Re: Utility value to dummy percentage

Re: Utility value to dummy percentage

Re: Utility value to dummy percentage

Re: Utility value to dummy percentage

Re: Utility value to dummy percentage

Re: Utility value to dummy percentage

Re: Utility value to dummy percentage