Increase or decrease value

[VHK17]

I want to set the value of a dimmer dependent on the measured lux of a sensor

How can i Increase or decrease value of the value of the dimmer ?

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[Egregius]

Blockly can't do calculations. Use a lua/php/... script.

[Toulon7559]

With Blocky a (rather rude) approach would be to apply a series of IF-DO-statements to divide the control range in some steps, like you have started to do in your question.
For a 'fluent/smooth' solution, Egregius' response is applicable.

[VHK17]

In Blockly i have it running, but indeed is not smooth.

Now trying to get it done in lua.
But i am a noob in lua.
What is wrong ?

Code: Select all

commandArray = {}
 if (devicechanged['Pir_keuken'] == 'on' and otherdevices['Lux_keuken'] < '130') then
    commandArray['Dimmer_erker']='On'  --'On FOR 15'
    commandArray['Variable:Dimmer_erker']= uservariables["Set_lux_keuken"]
    commandArray['Variable:Set_lux_keuken']= tostring(uservariables["Set_lux_keuken"] +1)
    elseif (devicechanged['Pir_keuken'] == 'on' and otherdevices['Lux_keuken'] > '130') then
            commandArray['Dimmer_erker']='On'  --'On FOR 15'
            commandArray['Variable:Dimmer_erker']= uservariables["Set_lux_keuken"]
            commandArray['Variable:Set_lux_keuken']= tostring(uservariables["Set_lux_keuken"] -1)
 end
return commandArray