diff --git a/morse/.formatter.exs b/morse/.formatter.exs
new file mode 100644
index 0000000..d2cda26
--- /dev/null
+++ b/morse/.formatter.exs
@@ -0,0 +1,4 @@
+# Used by "mix format"
+[
+  inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"]
+]
diff --git a/morse/.gitignore b/morse/.gitignore
new file mode 100644
index 0000000..2f07eac
--- /dev/null
+++ b/morse/.gitignore
@@ -0,0 +1,24 @@
+# The directory Mix will write compiled artifacts to.
+/_build/
+
+# If you run "mix test --cover", coverage assets end up here.
+/cover/
+
+# The directory Mix downloads your dependencies sources to.
+/deps/
+
+# Where third-party dependencies like ExDoc output generated docs.
+/doc/
+
+# Ignore .fetch files in case you like to edit your project deps locally.
+/.fetch
+
+# If the VM crashes, it generates a dump, let's ignore it too.
+erl_crash.dump
+
+# Also ignore archive artifacts (built via "mix archive.build").
+*.ez
+
+# Ignore package tarball (built via "mix hex.build").
+morse-*.tar
+
diff --git a/morse/README.md b/morse/README.md
new file mode 100644
index 0000000..521bdda
--- /dev/null
+++ b/morse/README.md
@@ -0,0 +1,21 @@
+# Morse
+
+**TODO: Add description**
+
+## Installation
+
+If [available in Hex](https://hex.pm/docs/publish), the package can be installed
+by adding `morse` to your list of dependencies in `mix.exs`:
+
+```elixir
+def deps do
+  [
+    {:morse, "~> 0.1.0"}
+  ]
+end
+```
+
+Documentation can be generated with [ExDoc](https://github.com/elixir-lang/ex_doc)
+and published on [HexDocs](https://hexdocs.pm). Once published, the docs can
+be found at [https://hexdocs.pm/morse](https://hexdocs.pm/morse).
+
diff --git a/morse/lib/morse.ex b/morse/lib/morse.ex
new file mode 100644
index 0000000..402a6c7
--- /dev/null
+++ b/morse/lib/morse.ex
@@ -0,0 +1,13 @@
+defmodule Morse do
+  @moduledoc """
+  Functions to control the signal lamp connected with GPIO.
+  """
+
+  @doc """
+  Takes a string composed of dots and dashes, and signals them with the
+  signal lamp.
+  """
+  def signal(msg) do
+    IO.puts(msg)
+  end
+end
diff --git a/morse/mix.exs b/morse/mix.exs
new file mode 100644
index 0000000..05d2095
--- /dev/null
+++ b/morse/mix.exs
@@ -0,0 +1,28 @@
+defmodule Morse.MixProject do
+  use Mix.Project
+
+  def project do
+    [
+      app: :morse,
+      version: "0.1.0",
+      elixir: "~> 1.9",
+      start_permanent: Mix.env() == :prod,
+      deps: deps()
+    ]
+  end
+
+  # Run "mix help compile.app" to learn about applications.
+  def application do
+    [
+      extra_applications: [:logger]
+    ]
+  end
+
+  # Run "mix help deps" to learn about dependencies.
+  defp deps do
+    [
+      # {:dep_from_hexpm, "~> 0.3.0"},
+      # {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"}
+    ]
+  end
+end
diff --git a/morse/test/morse_test.exs b/morse/test/morse_test.exs
new file mode 100644
index 0000000..07b8b62
--- /dev/null
+++ b/morse/test/morse_test.exs
@@ -0,0 +1,4 @@
+defmodule MorseTest do
+  use ExUnit.Case
+  doctest Morse
+end
diff --git a/morse/test/test_helper.exs b/morse/test/test_helper.exs
new file mode 100644
index 0000000..869559e
--- /dev/null
+++ b/morse/test/test_helper.exs
@@ -0,0 +1 @@
+ExUnit.start()
diff --git a/ui/lib/signal_morse.ex b/ui/lib/signal_morse.ex
deleted file mode 100644
index 409e038..0000000
--- a/ui/lib/signal_morse.ex
+++ /dev/null
@@ -1,5 +0,0 @@
-defmodule Ui.SignalMorse do
-  def signal do
-    IO.puts("bleep bloop")
-  end
-end
diff --git a/ui/lib/ui_web/controllers/page_controller.ex b/ui/lib/ui_web/controllers/page_controller.ex
index 05ff15f..1e56767 100644
--- a/ui/lib/ui_web/controllers/page_controller.ex
+++ b/ui/lib/ui_web/controllers/page_controller.ex
@@ -22,7 +22,7 @@ defmodule UiWeb.PageController do
     case get_start_time() do
       start_time when start_time + 35 <= now ->
         System.put_env("MORSE_START_TIME", Integer.to_string(now))
-        Ui.SignalMorse.signal()
+        Morse.signal("...---...")
         text(conn, "Done.")
       _ ->
         text(conn, "It is still in progress...")
diff --git a/ui/mix.exs b/ui/mix.exs
index 61c999c..40d6763 100644
--- a/ui/mix.exs
+++ b/ui/mix.exs
@@ -38,7 +38,8 @@ defmodule Ui.MixProject do
       {:phoenix_live_reload, "~> 1.2", only: :dev},
       {:gettext, "~> 0.11"},
       {:jason, "~> 1.0"},
-      {:plug_cowboy, "~> 2.0"}
+      {:plug_cowboy, "~> 2.0"},
+      {:morse, path: "../morse"}
     ]
   end
 end
diff --git a/ui/test/ui_web/controllers/page_controller_test.exs b/ui/test/ui_web/controllers/page_controller_test.exs
index 3de8b82..5bcffb4 100644
--- a/ui/test/ui_web/controllers/page_controller_test.exs
+++ b/ui/test/ui_web/controllers/page_controller_test.exs
@@ -1,8 +1,3 @@
 defmodule UiWeb.PageControllerTest do
   use UiWeb.ConnCase
-
-  test "GET /", %{conn: conn} do
-    conn = get(conn, "/")
-    assert html_response(conn, 200) =~ "Welcome to Phoenix!"
-  end
 end