test.lua

--local monitorLast = os.clock()

local alarm = false

while true do
 for _, name in pairs(peripheral.getNames()) do
  local type = peripheral.getType(name)
  --local curTime = os.clock()

  if type == "speaker" and alarm == true then
   peripheral.wrap(name).playSound("minecraft:entity.player.levelup")
  elseif type == "monitor" then
   local monitor = peripheral.wrap(name)
   monitor.setTextColor(colors.white)
   monitor.setBackgroundColor(colors.black)
   monitor.write("Testing")
  end
 end
 sleep(0.25)
end