defmodule BuiltIns do
  @moduledoc """ 

  Instantiates a few default signals.

  """

  use Reactivity
  
  def init() do
    {:ok, _t} = Source.new(fn(_old_value) -> Enum.random(0..500)      end, -1, 2000, :temperature)
    {:ok, _t} = Source.new(fn(_old_value) -> :os.system_time(:second) end, :os.system_time(:second), 1000, :seconds)
  end
  
end