Extracted LED generation into seperate function

main.lua

@@ -25,6 +25,15 @@ tmr.alarm(0, 100, 1, function()
   end
 end)
 
+function generateLEDs(words)
+ buf=""
+ if (words.min4 == 1) then
+    buf=string.char(0,0,50):rep(110)
+  else
+    buf=string.char(0,0,0):rep(110)
+  end
+  return buf
+end
 
 tmr.alarm(1, 1000, 1 ,function()
  sec, usec = rtctime.get()
@@ -33,17 +42,9 @@ tmr.alarm(1, 1000, 1 ,function()
  print("Local time : " .. time.year .. "-" .. time.month .. "-" .. time.day .. " " .. time.hour .. ":" .. time.minute .. ":" .. time.second)
 
  words = display_timestat(time.hour, time.minute)
- -- All Leds are off
- buf=string.char(0,0,0):rep(110)
-
- if (words.min4 == 1) then
-    buf=string.char(0,0,50):rep(110)
-  else
-    buf=string.char(0,0,0):rep(110)
-  end
-
-  
-  ws2812.write(4, buf)
+ ledBuf = generateLEDs(words)
+ -- Write the buffer to the LEDs
+ ws2812.write(4, ledBuf)
  
  for key,value in pairs(words) do 
     if (value > 0) then