And example of genserver using ElixirAle with set_int interruptions

gistfile1.txt

defmodule GpioInput do
  use GenServer
  @item_in_pin 17


  def start_link() do
    GenServer.start_link(__MODULE__, [], [])
  end

  def init(_) do
    {:ok, pid} = ElixirALE.GPIO.start_link(@item_in_pin, :input)
    ElixirALE.GPIO.set_int(pid, :both)
    {:ok, pid}
  end

  def handle_info({:gpio_interrupt, @item_in_pin, :rising}, state) do
    IO.puts("rinsing")
    {:noreply, state}
  end
  def handle_info({:gpio_interrupt, @item_in_pin, :falling}, state) do
    IO.puts("falling")
    {:noreply, state}
  end

  def handle_cast(_, state) do
    IO.puts("error")
    {:reply, state}
  end

end