Merge pull request #2 from ElixirCLE/add-neopixels

Add neopixels

Author: joelbyler

apps/lightning/.gitignore

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+# 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 3rd-party dependencies like ExDoc output generated docs.
+/doc
+
+# 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

apps/lightning/README.md

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+# Lightning
+
+**TODO: Add description**
+
+## Installation
+
+If [available in Hex](https://hex.pm/docs/publish), the package can be installed as:
+
+  1. Add `lightning` to your list of dependencies in `mix.exs`:
+
+    ```elixir
+    def deps do
+      [{:lightning, "~> 0.1.0"}]
+    end
+    ```
+
+  2. Ensure `lightning` is started before your application:
+
+    ```elixir
+    def application do
+      [applications: [:lightning]]
+    end
+    ```
+

apps/lightning/config/config.exs

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+# This file is responsible for configuring your application
+# and its dependencies with the aid of the Mix.Config module.
+use Mix.Config
+
+config :lightning, :channel0,
+  pin: 18,
+  count: 1
+
+config :lightning, renderer: Lightning.NeopixelStandin

apps/lightning/lib/lightning.ex

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+defmodule Lightning do
+  use Application
+
+  def start(_type, _args) do
+    import Supervisor.Spec, warn: false
+
+    children = [
+    ]
+
+    opts = [strategy: :one_for_one, name: Lightning.Supervisor]
+    Supervisor.start_link(children, opts)
+  end
+end

apps/lightning/lib/lightning/colors.ex

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+defmodule Lightning.Colors do
+
+  def red do {255, 0, 0} end
+  def green do {0, 255, 0} end
+  def blue do {0, 0, 255} end
+  def off do {0, 0, 0} end
+  def white do {255, 255, 255} end
+
+end

apps/lightning/lib/lightning/control.ex

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+defmodule Lightning.Control do
+  @renderer Application.get_env(:lightning, :renderer)
+
+  def change_color(color) do
+    change_color(color, 125)
+  end
+
+  def change_color(color, brightness) do
+    change_color(0, color, brightness)
+  end
+
+  def change_color(ch, color, brightness) do
+    IO.puts renderer
+    renderer.render(ch, {brightness, [color]})
+  end
+
+  def renderer do
+    @renderer || Lightning.NeopixelStandin
+  end
+end

apps/lightning/lib/lightning/neopixel_standin.ex

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+defmodule Lightning.NeopixelStandin do
+  def render(channel, {brightness, color_array}) do
+    IO.puts("Rendering #{inspect(color_array)} at brightness #{inspect(brightness)} to channel #{inspect(channel)}")
+  end
+end

apps/lightning/mix.exs

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+defmodule Lightning.Mixfile do
+  use Mix.Project
+
+  def project do
+    [app: :lightning,
+     version: "0.1.0",
+     build_path: "../../_build",
+     config_path: "../../config/config.exs",
+     deps_path: "../../deps",
+     lockfile: "../../mix.lock",
+     elixir: "~> 1.3",
+     build_embedded: Mix.env == :prod,
+     start_permanent: Mix.env == :prod,
+     deps: deps]
+  end
+
+  # Configuration for the OTP application
+  #
+  # Type "mix help compile.app" for more information
+  def application do
+    [applications: [:logger],
+     mod: {Lightning, []}]
+  end
+
+  # Dependencies can be Hex packages:
+  #
+  #   {:mydep, "~> 0.3.0"}
+  #
+  # Or git/path repositories:
+  #
+  #   {:mydep, git: "https://github.com/elixir-lang/mydep.git", tag: "0.1.0"}
+  #
+  # To depend on another app inside the umbrella:
+  #
+  #   {:myapp, in_umbrella: true}
+  #
+  # Type "mix help deps" for more examples and options
+  defp deps do
+    []
+  end
+end

apps/lightning/test/lightning_test.exs

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+defmodule LightningTest do
+  use ExUnit.Case
+  doctest Lightning
+
+  test "the truth" do
+    assert 1 + 1 == 2
+  end
+end

apps/lightning/test/test_helper.exs

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+ExUnit.start()