enduser_setup.start()

 ListenPort =

 wifi.setmode(wifi.STATIONAP)

 wifi.sta.autoconnect()

 clientid = wifi.sta.getmac()

 print(clientid)

 UdpSocket = net.createUDPSocket()

 UdpSocket:listen(ListenPort)

 UdpSocket:on("receive", function(s, data, port, ip)

     print(string.format("received '%s' from %s:%d", data, ip, port))

     s:send(port, ip, "echo: " .. clientid)

 end)

 printip =

 wifi.eventmon.register(wifi.eventmon.STA_DISCONNECTED, function(T)

     printip =

 end)

 wifi.eventmon.register(wifi.eventmon.STA_GOT_IP, function(T)

    if printip ==  then

       print("+IP "..T.IP)

       RSSI=wifi.sta.getrssi()--信号

 print("RSSI is", RSSI)

    end

    printip =

 end)