title: Creating a timer using Lua
body: <p>I would like to create a timer using Lua, in a way that I could specify a callback function to be triggered after X seconds have passed.</p>
  
  <p>What would be the best way to achieve this? ( I need to download some data from a webserver that will be parsed once or twice an hour )</p>
  
  <p>Cheers.</p>