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Smart Home Forum by FIBARO Team

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Question on data graphics child devices



I sее a problem that when you create child of the device by LUA in QApp HC3, in parent device displays a graph of changes of values, but the child - do not. At the same time, there is a "save history" checkbox. What could be the problem?

Edited by matsys
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Welcome to the forum @matsys


Graphs in the advanced settings of a device depend on the device type. 


Can you tell us more on what you are doing? Share your code?

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  • Inquirer
  • So, i read data from temperature-humidity sensor by Modbus TCP.


    I have parent device - temperature sensor and 1 child: humidity sensor


    Some code (not full in order not to overload, but the principle itself was clear)


    -- Multilevel switch type should handle actions: turnOn, turnOff, setValue
    -- To update multilevel switch state, update property "value" with integer 0-99
    class 'humSM5310'(QuickAppChild)
    function humSM5310:__init(dev)
    function humSM5310:updateValue(data)
      self:updateProperty("value", data.hum)


    function QuickApp:updateChildDevices()
      for id,child in pairs(self.childDevices) do -- Update Child Devices

    -- Value is type of float
    function QuickApp:setValue(value)
        --self:debug("multilevel switch set to: " .. tostring(value)) 
        self:updateProperty("value", value)    


    -- Setup child


    function QuickApp:setupChildDevices()
      local cdevs = api.get("/devices?parentId="..self.id) or {} -- Pick up all Child Devices
      function self:initChildDevices() end -- Null function, else Fibaro calls it after onInit()...

      if #cdevs == 0 then -- If no Child Devices, create them
        local initChildData = { 
          {className="humSM5310", name="Hum sm5351", type="com.fibaro.humiditySensor", value=0},
        for _,c in ipairs(initChildData) do
          local child = self:createChildDevice(
            {name = c.name, type=c.type, value=c.value, initialInterfaces = {}, }, 
            _G[c.className] -- Fetch class constructor from class name
          child:setVariable("className",c.className)  -- Save class name so we know when we load it next time
        for _,child in ipairs(cdevs) do
          local className = getChildVariable(child,"className") -- Fetch child class name
          local childObject = _G[className](child) -- Create child object from the constructor name
          childObject.parent = self -- Setup parent link to device controller 



    So, first i create child device - humidity sensor and from time-to-time reload value, and all is ok display, but no graphics on this child device, and parent (temperature) device - have graphics.

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    Device types com.fibaro.humiditySensor don’t have the graphs like for example the temperature, power devices have. 

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  • Inquirer
  • Thanks! Where can I look at all types? Is it listed somewhere?

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