Extracted temperatur functionality into wordclock.lua

main.lua

@@ -48,6 +48,11 @@ function displayTime()
         words.briPer=nil
      end
      end
+     local tw=nil
+     local tcol=nil
+     if (mqttDispTemp ~= nil) then
+	tw, tcol  = wc.temp(dw, rgbBuffer, invertRows)
+     end
      wc = nil
      collectgarbage()
      print("wc: " .. tostring(node.heap()))
@@ -61,13 +66,10 @@ function displayTime()
         local c = dw.countChars(words)
         dw.generateLEDs(rgbBuffer, words, colorBg, color, color1, color2, color3, color4, invertRows, c)
      end
-     if (mqttDispTemp ~= nil) then
-	local tw, tcol  = mqttDispTemp(dw, rgbBuffer, invertRows)
      if ( (tw ~= nil) and (tcol ~= nil) ) then
 	  local c1 = dw.countChars(tw)
           dw.generateLEDs(rgbBuffer, tw, nil, tcol, nil, nil, nil, nil, invertRows, c1)
      end
-     end
      dw = nil
      collectgarbage()
      print("dw: " .. tostring(node.heap()))

mqtt.lua

@@ -3,7 +3,7 @@ local m=nil
 local mqttConnected = false
 -- Temp:
 local t=nil
-local dispTemp=nil
+dispTemp=nil
 
 function handleSingleCommand(client, topic, data)
     if (data == "ON") then
@@ -106,55 +106,6 @@ function reConnectMqtt()
  end
 end
 
--- Logic to display Mqtt
-function mqttDispTemp(dw, rgbBuffer, invertRows)
-if (dispTemp ~= nil) then
-   -- Values: it, is, 5 minutes, 10 minutes, afer, before, three hour, quarter, dreiviertel, half, s
-   --  hours: one, one Long, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve
-   -- Special ones: twenty, clock, minute 1 flag, minute 2 flag, minute 3 flag, minute 4 flag
-   local ret = { it=0, is=0, m5=0, m10=0, ha=0, hb=0, h3=0, hq=0, h3q=0, half=0, s=0, 
-               h1=0, h1l=0, h2=0, h3=0, h4=0, h5=0, h6=0, h7=0, h8=0, h9=0, h10=0, h11=0, h12=0,
-               m20=0, cl=0, m1=0, m2=0, m3=0, m4=0 }
-
-   print("Mqtt Display of temperature: " .. tostring(dispTemp) )
-   if (dispTemp == 1) or (dispTemp == -1) then
-     ret.h1=1
-   elseif (dispTemp == 2) or (dispTemp == -2) then
-     ret.h2=1
-   elseif (dispTemp == 3) or (dispTemp == -3) then
-     ret.h3=1
-   elseif (dispTemp == 4) or (dispTemp == -4) then
-     ret.h4=1
-   elseif (dispTemp == 5) or (dispTemp == -5) then
-     ret.h5=1
-   elseif (dispTemp == 6) or (dispTemp == -6) then
-     ret.h6=1
-   elseif (dispTemp == 7) or (dispTemp == -7) then
-     ret.h7=1
-   elseif (dispTemp == 8) or (dispTemp == -8) then
-     ret.h8=1
-   elseif (dispTemp == 9) or (dispTemp == -9) then
-     ret.h9=1
-   elseif (dispTemp == 10) or (dispTemp == -10) then
-     ret.h10=1
-   elseif (dispTemp == 11) or (dispTemp == -11) then
-     ret.h11=1
-   elseif (dispTemp == 12) or (dispTemp == -12) then
-     ret.h12=1
-   else
-	   -- over or under temperature
-   end
-   local col=string.char(128,0,0) -- red; positive degrees
-   if (dispTemp < 0) then
-	col=string.char(0,0,128) -- blue; negative degrees
-   end
-   return ret, col
-else
-   return nil, nil
-end
-
-end
-
 -- MQTT extension
 function registerMqtt()
     m = mqtt.Client("wordclock", 120)
@@ -235,12 +186,15 @@ function startMqttClient()
     if (mqttServer ~= nil and mqttPrefix ~= nil) then
         registerMqtt()
         print "Started MQTT client"
+	local dstimer = tmr.create()
+	dstimer:register(123, tmr.ALARM_SINGLE, function (t)
 		if (file.open("ds18b20_diet.lc")) then
 		  t=require("ds18b20_diet")
 		  t.setup(2) -- GPIO4
 		  readTemp() -- read once, to setup chip
 		  print "Setup temperature"
 		end
+	end)
         local oldBrightness=0
         oldTemp=0
 	local mqtttimer = tmr.create()

wordclock.lua

@@ -140,9 +140,60 @@ local timestat=function (hours, minutes, longmode)
  collectgarbage()
  return ret
 end
+
+
+-- Logic to display Mqtt
+function temp(dw, rgbBuffer, invertRows, dispTemp)
+if (dispTemp ~= nil) then
+   -- Values: it, is, 5 minutes, 10 minutes, afer, before, three hour, quarter, dreiviertel, half, s
+   --  hours: one, one Long, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve
+   -- Special ones: twenty, clock, minute 1 flag, minute 2 flag, minute 3 flag, minute 4 flag
+   local ret = { it=0, is=0, m5=0, m10=0, ha=0, hb=0, h3=0, hq=0, h3q=0, half=0, s=0, 
+               h1=0, h1l=0, h2=0, h3=0, h4=0, h5=0, h6=0, h7=0, h8=0, h9=0, h10=0, h11=0, h12=0,
+               m20=0, cl=0, m1=0, m2=0, m3=0, m4=0 }
+
+   print("Mqtt Display of temperature: " .. tostring(dispTemp) )
+   if (dispTemp == 1) or (dispTemp == -1) then
+     ret.h1=1
+   elseif (dispTemp == 2) or (dispTemp == -2) then
+     ret.h2=1
+   elseif (dispTemp == 3) or (dispTemp == -3) then
+     ret.h3=1
+   elseif (dispTemp == 4) or (dispTemp == -4) then
+     ret.h4=1
+   elseif (dispTemp == 5) or (dispTemp == -5) then
+     ret.h5=1
+   elseif (dispTemp == 6) or (dispTemp == -6) then
+     ret.h6=1
+   elseif (dispTemp == 7) or (dispTemp == -7) then
+     ret.h7=1
+   elseif (dispTemp == 8) or (dispTemp == -8) then
+     ret.h8=1
+   elseif (dispTemp == 9) or (dispTemp == -9) then
+     ret.h9=1
+   elseif (dispTemp == 10) or (dispTemp == -10) then
+     ret.h10=1
+   elseif (dispTemp == 11) or (dispTemp == -11) then
+     ret.h11=1
+   elseif (dispTemp == 12) or (dispTemp == -12) then
+     ret.h12=1
+   else
+       -- over or under temperature
+   end
+   local col=string.char(128,0,0) -- red; positive degrees
+   if (dispTemp < 0) then
+    col=string.char(0,0,128) -- blue; negative degrees
+   end
+   return ret, col
+else
+   return nil, nil
+end
+
+end
 -- Pack everything into a module
 M = {
-    timestat = timestat
+    timestat = timestat,
+    temp = temp
 }
 end
 wc = M