initial

init.lua

@@ -0,0 +1,50 @@
+-- Constants
+SSID    = "MYWIWIF"
+APPWD   = "QuantumPassword"
+CMDFILE = "mqtt.lua"   -- File that is executed after connection
+
+-- Some control variables
+wifiTrys     = 0      -- Counter of trys to connect to wifi
+NUMWIFITRYS  = 200    -- Maximum number of WIFI Testings while waiting for connection
+
+-- Change the code of this function that it calls your code.
+function launch()
+  print("Connected to WIFI!")
+  print("IP Address: " .. wifi.sta.getip())
+  -- Call our command file every minute.
+  tmr.alarm(0, 60000, 0, function() dofile(CMDFILE) end )
+end
+
+function checkWIFI() 
+  if ( wifiTrys > NUMWIFITRYS ) then
+    print("Sorry. Not able to connect")
+  else
+    ipAddr = wifi.sta.getip()
+    if ( ( ipAddr ~= nil ) and  ( ipAddr ~= "0.0.0.0" ) )then
+      -- lauch()        -- Cannot call directly the function from here the timer... NodeMcu crashes...
+      tmr.alarm( 1 , 500 , 0 , launch )
+    else
+      -- Reset alarm again
+      tmr.alarm( 0 , 2500 , 0 , checkWIFI)
+      print("Checking WIFI..." .. wifiTrys)
+      wifiTrys = wifiTrys + 1
+    end 
+  end 
+end
+
+print("-- Starting up! ")
+
+-- Lets see if we are already connected by getting the IP
+ipAddr = wifi.sta.getip()
+if ( ( ipAddr == nil ) or  ( ipAddr == "0.0.0.0" ) ) then
+  -- We aren't connected, so let's connect
+  print("Configuring WIFI....")
+  wifi.setmode( wifi.STATION )
+  wifi.sta.config( SSID , APPWD)
+  print("Waiting for connection")
+  tmr.alarm( 0 , 2500 , 0 , checkWIFI )  -- Call checkWIFI 2.5S in the future.
+else
+ -- We are connected, so just run the launch code.
+ launch()
+end
+-- Drop through here to let NodeMcu run