update a new telnet example

README.md

@@ -93,6 +93,7 @@ braudrate:9600
         print(payload) 
         conn:send("<h1> Hello, NodeMcu.</h1>")
       end) 
+      conn:on("sent",function(conn) conn:close() end)
     end)
 ```
 
@@ -139,22 +140,21 @@ braudrate:9600
 ####With below code, you can telnet to your esp8266 now
 ```lua
     -- a simple telnet server
-    s=net.createServer(net.TCP) 
+    s=net.createServer(net.TCP,180) 
     s:listen(2323,function(c) 
-       con_std = c 
        function s_output(str) 
-          if(con_std~=nil) 
-             then con_std:send(str) 
+          if(c~=nil) 
+             then c:send(str) 
           end 
        end 
        node.output(s_output, 0)   -- re-direct output to function s_ouput.
        c:on("receive",function(c,l) 
           node.input(l)           -- works like pcall(loadstring(l)) but support multiple separate line
        end) 
        c:on("disconnection",function(c) 
-          con_std = nil 
           node.output(nil)        -- un-regist the redirect output function, output goes to serial
        end) 
+       print("Welcome to NodeMcu world.")
     end)
 ```
 #Check this out

examples/telnet.lua

@@ -3,32 +3,30 @@ print("Author: [email protected]. copyright&GPL V2.")
 print("Last modified 2014-11-19. V0.2")
 print("Wicon Server starting ......")
 
+function connected(conn)
+   print("Wifi console connected.")
+   function s_output(str)
+      if (conn~=nil)    then
+         conn:send(str)
+      end
+   end
+   node.output(s_output,0)
+   conn:on("receive", function(conn, pl) 
+      node.input(pl) 
+   end)
+   conn:on("disconnection",function(conn) 
+      node.output(nil) 
+   end)
+   print("Welcome to NodeMcu world.")
+end
+
 function startServer()
    print("Wifi AP connected. Wicon IP:")
    print(wifi.sta.getip())
    sv=net.createServer(net.TCP, 180)
-   sv:listen(8080,   function(conn)
-      print("Wifi console connected.")
-
-      function s_output(str)
-         if (conn~=nil)    then
-            conn:send(str)
-         end
-      end
-      node.output(s_output,0)
-
-      conn:on("receive", function(conn, pl) 
-         node.input(pl) 
-         if (conn==nil)    then 
-            print("conn is nil.") 
-         end
-      end)
-      conn:on("disconnection",function(conn) 
-         node.output(nil) 
-      end)
-   end)   
-   print("Wicon Server running at :8080")
-   print("===Now,Using xcon_tcp logon and input LUA.====")
+   sv:listen(2323, connected)
+   print("Telnet Server running at :2323")
+   print("===Now, logon and input LUA.====")
 end
 
 tmr.alarm(1000, 1, function() 

examples/telnet2.lua

@@ -0,0 +1,17 @@
+    -- a simple telnet server
+    s=net.createServer(net.TCP,180) 
+    s:listen(2323,function(c) 
+       function s_output(str) 
+          if(c~=nil) 
+             then c:send(str) 
+          end 
+       end 
+       node.output(s_output, 0)   -- re-direct output to function s_ouput.
+       c:on("receive",function(c,l) 
+          node.input(l)           -- works like pcall(loadstring(l)) but support multiple separate line
+       end) 
+       c:on("disconnection",function(c) 
+          node.output(nil)        -- un-regist the redirect output function, output goes to serial
+       end) 
+       print("Welcome to NodeMcu world.")
+    end)