Calculations with dzVents [Solved]

[Podarcis]

Hi All,

I need some help with a relative simple dventz script.

I have 2 sensors;

IDX347, which is the current percentage charge of the battery of my Renault ZOE,
IDX353, which has the current range
IDX518, in this dummy sensor I would like do calculate the predicted max range of my car. Should be calculated by (Range/%charge)*100).

I tried to do it the following way;

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return {

   on = { timer = { "every 2 minutes" }},     -- Change to your liking to 1,2,3,4,5,6,10,12,15 or 20  

   execute = function(dz, item)

       local Predicted_MaxRange = dz.devices(516)
       local rangeZOE           = dz.devices(353)
       local accuZOE            = dz.devices(347)

       local Predicted_Maxrange = ((rangeZOE / accuZOE) * 100 )
       
       domoticz.log('----predicted maxrange------------------')
       domoticz.log(Predicted_Maxrange)
       domoticz.log('----------------------')

   end
}

This doesn't seem to work (ok, I still have to figure out to put in the result in IDX516, but by printing it in the LOG I at least should know that I'm on the right track. However, I get an error;

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2019-07-08 18:08:00.461 Status: dzVents: Info: ------ Start internal script: Predicted_max_range_ZOE:, trigger: every 2 minutes
2019-07-08 18:08:00.468 Status: dzVents: Error (2.4.22): An error occured when calling event handler Predicted_max_range_ZOE
2019-07-08 18:08:00.468 Status: dzVents: Error (2.4.22): ...ts/dzVents/generated_scripts/Predicted_max_range_ZOE.lua:19: attempt to perform arithmetic on local 'rangeZOE' (a table value)
2019-07-08 18:08:00.468 Status: dzVents: Info: ------ Finished Predicted_max_range_ZOE

Can somebody help me?

Thanks,
David

[waaren]

IDX347, which is the current percentage charge of the battery of my Renault ZOE,
IDX353, which has the current range
This doesn't seem to work (ok, I still have to figure out to put in the result in IDX516, but by printing it in the LOG I at least should know that I'm on the right track. However, I get an error;

Your script tries to compute the product of two devices (tables) depending on the type of these devices you probably want to compute the product of field values.

For example if rangeZoe is percentage devices and accuZoe is a counter device you would have to change line 11 from

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local Predicted_Maxrange = ((rangeZOE / accuZOE) * 100 )

to

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local Predicted_Maxrange = ((rangeZOE.percentage / accuZOE.counter) * 100 )

Have a look at the wiki for all possible fields and methods for your specific devicetype(s)