globals to locals, named timers

BUILD/interrupt.lua

@@ -1,8 +1,6 @@
 -- using timer 5 for short/long press detection
-longPress = 3000 -- 3 seconds
-buttonPin = 6 -- GPIO6
-DEBUG = true
-SETUP = false
+local longPress = 3000 -- 3 seconds
+local buttonPin = 6 -- GPIO6
 
 function debugMsg(msg)
   if DEBUG then
@@ -11,20 +9,20 @@ function debugMsg(msg)
 end
 
 function shortOrLongPress()
-  level = gpio.read(buttonPin)
+  local level = gpio.read(buttonPin)
 
   debugMsg('The pin value has changed to '..gpio.read(buttonPin))
   debugMsg("detected level " .. level)
 
   if level == 1 then -- button depressed
     debugMsg("LONG PRESS TIMER START")
-    tmr.alarm(5, longPress, 0, function()
+    tmr.alarm(INTERRUPT_TIMER, longPress, 0, function()
       debugMsg("LONG PRESS")
       dofile('wifiSetup.lua')
     end)
   else -- button released
     debugMsg("SETUP STATUS " .. tostring(SETUP))
-    tmr.stop(5)
+    tmr.stop(INTERRUPT_TIMER)
     if not SETUP then
       debugMsg("SHORT PRESS")
       dofile('sendYo.lua')
@@ -39,7 +37,7 @@ function debounce (func)
   return function (...)
     local now = tmr.now()
     if now - last < delay then
-      tmr.stop(5)
+      tmr.stop(INTERRUPT_TIMER)
       debugMsg("DEBOUNCE PREVENTED EXTRA PRESS")
       if not SETUP then
         debugMsg("DEBOUNCE INTERPRETED AS SHORT PRESS")