Sync the time every 5 minutes from the internet

main.lua

@@ -154,6 +154,7 @@ function normalOperation()
         
         tmr.alarm(2, 500, 0 ,function()
             syncTimeFromInternet()
+            displayTime()
         end)
         tmr.alarm(3, 2000, 0 ,function()
     		if (startTelnetServer ~= nil) then
@@ -162,13 +163,18 @@ function normalOperation()
     			print("NO Telent found")
     		end
         end)
-        displayTime()
         -- Start the time Thread
         tmr.alarm(1, 10000, 1 ,function()
              displayTime()
              collectgarbage()
          end)
          
+        -- sync the time every 5 minutes
+        tmr.alarm(4, 300000, 1 ,function()
+            syncTimeFromInternet()
+            displayTime()
+        end)
+        
       end
       -- when no wifi available, open an accesspoint and ask the user
       if (connect_counter >= 60) then -- 300 is 30 sec in 100ms cycle