updated

speaker_driver.lua

@@ -29,6 +29,9 @@ end
 local function playExternalAlarm(speakers)
     playSound(speakers,"external_alarm")
 end
+local function playInternalAlarm(speakers)
+    playSound(speakers,"internal_alarm")
+end
 
 local function createSoundFile(fileName)
 
@@ -58,7 +61,8 @@ end
 local function startup()
         local sounds = {
         { fileName = "short_control_alarm" },
-        { fileName = "external_alarm" }
+        { fileName = "external_alarm" },
+        { fileName = "internal_alarm" }
     }
 
     for i, item in ipairs(sounds) do