ESP8266 Community Forum

Posted: **Fri Nov 28, 2014 12:53 pm**

Hi,

Does any one has a working UDP server example in LUA? I tried the following code, it seems that server starts but UDP messages are not received! note that I'm sending UDP messages to ESP8266 from my Android phone using UDP Sender App which works fine with other UDP servers.

Code: Select all

pin=8
port=5000
print("IP:"..wifi.sta.getip()..", Port:"..port)
gpio.mode(pin, gpio.OUTPUT)
gpio.write(pin, gpio.LOW)
srv=net.createServer(net.UDP)
srv:listen(port,function(conn)
conn:on("receive", function(conn, pl)
   print("Command Reveived")
   if pl=="on" then gpio.write(pin, gpio.HIGH) else gpio.write(pin, gpio.LOW) end
   end)
end)

Posted: **Mon Dec 01, 2014 7:43 am**

so it seems UDP server does not work

Posted: **Mon Dec 01, 2014 9:14 am**

http://www.esp8266.com/viewtopic.php?f=18&t=681

Code: Select all

s=net.createServer(net.UDP) 
s:on("receive",function(s,c) print(c) end) 
s:listen(8888)

Posted: **Mon Dec 01, 2014 10:06 am**

Thanks, following code is working now:

Code: Select all

pin=8
port=5000
print("IP:"..wifi.sta.getip()..", Port:"..port)
gpio.mode(pin, gpio.OUTPUT)
gpio.write(pin, gpio.LOW)
srv=net.createServer(net.UDP)
srv:on("receive", function(srv, pl)
   print("Command Reveived")
   if pl=="on" then gpio.write(pin, gpio.HIGH) else gpio.write(pin, gpio.LOW) end
   end)
srv:listen(port)

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