Added serial debug information

telnet.lua

@@ -1,21 +1,25 @@
 -- Telnet client 
-local telnetClient=nil
-lines = {}
+telnetClient=nil
+local lines = {}
+
+-- Helper function
+function s_output(str)
+      uart.write(0,  "T:" .. tostring(str))
+      if (telnetClient ~= nil) then
+	if (#lines > 0) then
+	    table.insert(lines, str)
+	else
+	    table.insert(lines, str)
+	    telnetClient:send("\r") -- Send something, so the queue is read after sending
+	end
+      end
+end
+
 -- Telnet Server
 function startTelnetServer()
     s=net.createServer(net.TCP, 180)
     s:listen(23,function(c)
 	    telnetClient=c
-	    function s_output(str)
-	      if (telnetClient ~= nil) then
-		if (#lines > 0) then
-		    table.insert(lines, str)
-		else
-		    table.insert(lines, str)
-		    telnetClient:send("\r") -- Send something, so the queue is read after sending
-		end
-	      end
-	    end
 	    node.output(s_output, 0)
 	    c:on("receive",function(c,l)
 	      node.input(l)
@@ -27,10 +31,15 @@ function startTelnetServer()
 	    c:on("sent", function()        
 		if (#lines > 0) then
 		  local line1=nil
-		  for k,v in pairs(lines) do if (k==1) then line1=v end end
+		  for k,v in pairs(lines) do if (k==1) then 
+			  line1=v 
+		  	end
+			uart.write(0, "Lines:" .. tostring(v) .. "\r\n")
+
+		  end
 		  if ( line1 ~= nil ) then
 		   table.remove(lines, 1)
-		   print( tostring(line1) )
+		   uart.write(0, "Telent[" .. tostring(#lines) .. "]" .. tostring(line1) .. "\r\n" )
 		   telnetClient:send(line1)
 		  end
 		end
@@ -39,6 +48,7 @@ function startTelnetServer()
 	    print("- mydofile(\"commands\")")
 	    print("- storeConfig()")
 	    print("Visite https://github.com/nodemcu/nodemcu-firmware/wiki/nodemcu_api_en for further commands")
+	    uart.write(0, "New client connected\r\n")
     end)
     print("Telnetserver started")
 end