Color can be set externally

displayword.lua

@@ -1,7 +1,6 @@
 -- Module displaying of the words
-function generateLEDs(words)
+function generateLEDs(words, color)
  
- color=string.char(0,0,50)
  white=string.char(0,0,0)
  buf=color
  -- line 1----------------------------------------------

main.lua

@@ -4,11 +4,20 @@ dofile("wordclock.lua")
 dofile("displayword.lua")
 
 timezoneoffset=1
+ledPin=4
+color=string.char(0,0,250)
 
+connect_counter=0
 -- Wait to be connect to the WiFi access point. 
-tmr.alarm(0, 100, 1, function()
+tmr.alarm(0, 500, 1, function()
+  connect_counter=connect_counter+1
   if wifi.sta.status() ~= 5 then
      print("Connecting to AP...")
+     if (connect_counter % 2 == 0) then
+        ws2812.write(ledPin, string.char(255,0,0):rep(114))
+     else
+       ws2812.write(ledPin, string.char(0,0,0):rep(114))
+     end
   else
      tmr.stop(0)
      print('IP: ',wifi.sta.getip())
@@ -22,7 +31,16 @@ tmr.alarm(0, 100, 1, function()
        print('failed!')
      end
    )
+  end
+  -- when no wifi available, open an accesspoint and ask the user
+  if (connect_counter == 300) then -- 300 is 30 sec in 100ms cycle
+    tmr.stop(0)
+    wifi.setmode(wifi.SOFTAP)
+    wifi.ap.config({ssid='clock',pwd='clock'})
+    print("Waiting in access point >clock< for Clients")
+    print("Please visit 192.168.4.1")
     
+    dofile("webserver.lua")
   end
 end)
 
@@ -33,9 +51,9 @@ tmr.alarm(1, 5000, 1 ,function()
  print("Local time : " .. time.year .. "-" .. time.month .. "-" .. time.day .. " " .. time.hour .. ":" .. time.minute .. ":" .. time.second)
 
  words = display_timestat(time.hour, time.minute)
- ledBuf = generateLEDs(words)
+ ledBuf = generateLEDs(words, color)
  -- Write the buffer to the LEDs
- ws2812.write(4, ledBuf)
+ ws2812.write(ledPin, ledBuf)
  
  for key,value in pairs(words) do 
     if (value > 0) then