I_UDP.xml

<?xml version="1.0"?>
<implementation>
 
  <functions>
  
  local socket = require "socket"
  local udp = socket.try(socket.udp())
  udp_address = '255.255.255.255'
  -- udp_address = '10.0.20.10'
  port = 1234
  
  local mappings = {
    ["urn:upnp-org:serviceId:SwitchPower1"] = {
        friendly = "Switch Power",
        variable = "Status",
        notify_name = "Switch"
    },
    ["urn:micasaverde-com:serviceId:SceneController1"] = {
        friendly = "Scene Controller",
        variable = "sl_SceneActivated",
        notify_name = "Scene"
    },
    ["urn:upnp-org:serviceId:Dimming1"] = {
        friendly = "Dimmer",
        variable = "LoadLevelStatus",
        notify_name = "Dimmer"
    },
    ["urn:micasaverde-com:serviceId:SecuritySensor1"] = {
        friendly = "Security Sensor",
        variable = "Tripped",
        notify_name = "SecuritySensor"
    }
   }


    function send_udp (lul_device, lul_service, lul_variable, lul_value_old, lul_value_new)
        local notify_name = mappings[lul_service].notify_name

        local msg = string.format("ZWave:%s:%d:%s:%d", notify_name, lul_device, luup.devices[lul_device].description, lul_value_new)

--        if( lul_value_old == lul_value_new ) then
--            luup.log (string.format("UDP notifier send_udp(%s/%s/%s/%s/%s) no change, not sending msg[%s]", tostring(lul_device), lul_service, lul_variable, tostring(lul_value_old), tostring(lul_value_new), msg ) )
--        else
            luup.log (string.format("UDP notifier send_udp(%s/%s/%s/%s/%s) sending msg[%s]", tostring(lul_device), lul_service, lul_variable, tostring(lul_value_old), tostring(lul_value_new), msg ) )
              socket.try(udp:sendto(msg, udp_address, port))
--        end
      end
  
  
    function start_udpNotifier (lul_device)
        luup.log ('Initalizing UDP Notifier')
              
        assert(udp:setoption("broadcast", true))
        udp:settimeout (10)                  -- wait 10 seconds
          
        socket.try (udp:setsockname ('*', port))

        -- loop over all devices to find devices to monitor

          for k,v in pairs (luup.devices) do
            local found = 0
            luup.log( string.format("UDP notifier : Considering device #%s:%s", k, v.description) )

            for serv, servinfo in pairs (mappings) do
                if luup.device_supports_service(serv, k) then
                    found = 1
                    luup.log( string.format("UDP notifier :   -> supports %s (watching variable %s)", mappings[serv].friendly, mappings[serv].variable) )
                    luup.variable_watch( 'send_udp', serv, mappings[serv].variable, k )
                else
                    luup.log( string.format("UDP notifier :   -> does not support %s", mappings[serv].friendly) )
                end
            end

            if( found == 0 ) then
                luup.log( "UDP notifer :   -> No supported services, not notifying" )
            end
          end

          luup.log ('UDP Notifier initialized')
      end
      
  </functions>

  <incoming>
    <lua>
    
    </lua>
  </incoming>

  <startup>start_udpNotifier</startup>
</implementation>