Domoticz

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local DomDevice = 'Keukenlampboven'

return 
{
    on = { devices = { DomDevice }},
            
    logging = { level = domoticz.LOG_DEBUG, marker = DomDevice },

    execute = function(dz, item)
        
        local function composeCommand(targetValue)
             return  ('echo Fadetimer=5000,LED2_Target=' .. targetValue .. ' | nc -vw 1 192.168.1.230 43333 '.. ' ' )
        end
   
        local function osCommand(cmd)
            dz.log('Executing Command: ' .. cmd,dz.LOG_DEBUG)
   
            local fileHandle = assert(io.popen(cmd .. ' 2>&1 || echo ::ERROR::', 'r'))
            local commandOutput = assert(fileHandle:read('*a'))
            local returnTable = {fileHandle:close()}
            
            if commandOutput:find '::ERROR::' then     -- something went wrong
               dz.log('Error ==>> ' .. tostring(commandOutput:match('^(.*)%s+::ERROR::') or ' ... but no error message ' ) ,dz.LOG_DEBUG)
            else -- all is fine!!
                dz.log('ReturnCode: ' .. returnTable[3] .. '\ncommandOutput:\n' .. commandOutput, dz.LOG_DEBUG)
            end
            
            return commandOutput,returnTable[3] -- rc[3] contains returnCode
         
        end

        if item.state == 'Off' then 
            dz.log('Turning off ' .. DomDevice, dz.LOG_DEBUG)
            osCommand(composeCommand(0))
        else
            local CalcValue = math.floor(item.level * 33)
            dz.log('Value received from Domoticz was ' .. item.level, dz.LOG_DEBUG)
            dz.log('Dimming '  .. DomDevice .. ' to ' .. CalcValue,dz.LOG_DEBUG)
            osCommand(composeCommand(CalcValue))
        end  
    end
}