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‎.formatter.exs

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# Used by "mix format"
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[
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inputs: ["mix.exs", "{config,lib,test}/**/*.{ex,exs}"]
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]

‎.gitignore

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# The directory Mix will write compiled artifacts to.
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/_build/
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# If you run "mix test --cover", coverage assets end up here.
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/cover/
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# The directory Mix downloads your dependencies sources to.
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/deps/
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# Where 3rd-party dependencies like ExDoc output generated docs.
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/doc/
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# Ignore .fetch files in case you like to edit your project deps locally.
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/.fetch
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# If the VM crashes, it generates a dump, let's ignore it too.
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erl_crash.dump

‎README.md

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# HanAms
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**TODO: Add description**
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## Targets
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Nerves applications produce images for hardware targets based on the
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`MIX_TARGET` environment variable. If `MIX_TARGET` is unset, `mix` builds an
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image that runs on the host (e.g., your laptop). This is useful for executing
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logic tests, running utilities, and debugging. Other targets are represented by
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a short name like `rpi3` that maps to a Nerves system image for that platform.
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All of this logic is in the generated `mix.exs` and may be customized. For more
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information about targets see:
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https://hexdocs.pm/nerves/targets.html#content
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## Getting Started
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To start your Nerves app:
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* `export MIX_TARGET=my_target` or prefix every command with
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`MIX_TARGET=my_target`. For example, `MIX_TARGET=rpi3`
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* Install dependencies with `mix deps.get`
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* Create firmware with `mix firmware`
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* Burn to an SD card with `mix firmware.burn`
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## Learn more
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* Official docs: https://hexdocs.pm/nerves/getting-started.html
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* Official website: https://nerves-project.org/
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* Forum: https://elixirforum.com/c/nerves-forum
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* Discussion Slack elixir-lang #nerves ([Invite](https://elixir-slackin.herokuapp.com/))
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* Source: https://github.com/nerves-project/nerves

‎config/config.exs

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# This file is responsible for configuring your application
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# and its dependencies with the aid of the Mix.Config module.
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#
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# This configuration file is loaded before any dependency and
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# is restricted to this project.
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use Mix.Config
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# Customize non-Elixir parts of the firmware. See
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# https://hexdocs.pm/nerves/advanced-configuration.html for details.
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config :nerves, :firmware, rootfs_overlay: "rootfs_overlay"
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# Use shoehorn to start the main application. See the shoehorn
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# docs for separating out critical OTP applications such as those
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# involved with firmware updates.
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config :shoehorn,
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init: [:nerves_runtime, :nerves_init_gadget],
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app: Mix.Project.config()[:app]
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# Use Ringlogger as the logger backend and remove :console.
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# See https://hexdocs.pm/ring_logger/readme.html for more information on
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# configuring ring_logger.
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config :logger, backends: [RingLogger]
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# Authorize the device to receive firmware using your public key.
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# See https://hexdocs.pm/nerves_firmware_ssh/readme.html for more information
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# on configuring nerves_firmware_ssh.
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keys =
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[
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Path.join([System.user_home!(), ".ssh", "id_rsa.pub"]),
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Path.join([System.user_home!(), ".ssh", "id_ecdsa.pub"]),
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Path.join([System.user_home!(), ".ssh", "id_ed25519.pub"])
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]
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|> Enum.filter(&File.exists?/1)
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if keys == [],
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do:
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Mix.raise("""
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No SSH public keys found in ~/.ssh. An ssh authorized key is needed to
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log into the Nerves device and update firmware on it using ssh.
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See your project's config.exs for this error message.
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""")
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config :nerves_firmware_ssh,
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authorized_keys: Enum.map(keys, &File.read!/1)
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# Configure nerves_init_gadget.
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# See https://hexdocs.pm/nerves_init_gadget/readme.html for more information.
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# Setting the node_name will enable Erlang Distribution.
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# Only enable this for prod if you understand the risks.
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node_name = if Mix.env() != :prod, do: "han_ams"
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config :nerves_init_gadget,
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ifname: "usb0",
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address_method: :dhcpd,
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mdns_domain: "nerves.local",
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node_name: node_name,
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node_host: :mdns_domain
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# Import target specific config. This must remain at the bottom
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# of this file so it overrides the configuration defined above.
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# Uncomment to use target specific configurations
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# import_config "#{Mix.target()}.exs"

‎lib/han_ams.ex

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defmodule HanAms do
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@moduledoc """
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Documentation for HanAms.
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"""
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@doc """
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Hello world.
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## Examples
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iex> HanAms.hello
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:world
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"""
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def hello do
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:world
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end
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end

‎lib/han_ams/List13.ex

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defmodule HanAms.List13 do
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defstruct [:obis_list_version, :gs1, :meter_model]
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end
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# type BaseItem struct {
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# MessageType messageTypes `json:"Message_Type"`
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# MeterTime time.Time `json:"Meter_Time"`
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# HostTime time.Time `json:"Host_Time"`
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# }
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# type MessageType1 struct { // Also known as aka Items1
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# BaseItem
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# ActPowPos int `json:"Act_Pow_P_Q1_Q4"` /* OBIS Code 1.0.1.7.0.255 - Active Power + (Q1+Q4) */
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# }
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# type TwoFasesMessageType2 struct { // Also known as aka Items9
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# BaseItem
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# ObisListVersion string `json:"OBIS_List_Version"` /* OBIS Code 1.1.0.2.129.255 - OBIS List Version Identifier */
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# Gs1 string `json:"GS1"` /* OBIS Code 0.0.96.1.0.255 - Meter-ID(GIAI GS1 - 16 digits */
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# MeterModel string `json:"Meter_Model"` /* OBIS Code 0.0.96.1.7 - Meter Type */
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# ActPowPos int `json:"Act_Pow_P_Q1_Q4"` /* Active Power + */
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# ActPowNeg int `json:"Act_Pow_M_Q2_Q3"` /* Actve Power - */
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# ReactPowPos int `json:"React_Pow_P"` /* Reactive Power + */
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# ReactPowNeg int `json:"React_Pow_M"` /* Reactive Power - */
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# CurrL1 int `json:"Curr_L1"` /* Current Phase L1 */
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# VoltL1 int `json:"Volt_L1"` /* Voltage L1 */
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# }
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# type ThreeFasesMessageType2 struct { // Also known as Items13
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# BaseItem
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# ObisListVersion string `json:"OBIS_List_Version"` /* OBIS Code 1.1.0.2.129.255 - OBIS List Version Identifier */
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# Gs1 string `json:"GS1"` /* OBIS Code 0.0.96.1.0.255 - Meter-ID(GIAI GS1 - 16 digits */
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# MeterModel string `json:"Meter_Model"` /* OBIS Code 0.0.96.1.7.255 - Meter Type */
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# ActPowPos int `json:"Act_Pow_P_Q1_Q4"` /* Active Power + */
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# ActPowNeg int `json:"Act_Pow_M_Q2_Q3"` /* Active Power - */
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# ReactPowPos int `json:"React_Pow_P_Q1_Q2"` /* Reactive Power + */
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# ReactPowNeg int `json:"React_Pow_M_Q3_Q4"` /* Reactive Power - */
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# CurrL1 int `json:"Curr_L1"` /* Current Phase L1 mA */
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# CurrL2 int `json:"Curr_L2"` /* Current Phase L2 mA */
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# CurrL3 int `json:"Curr_L3"` /* Current Phase L3 mA */
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# VoltL1 int `json:"Volt_L1"` /* Voltage L1 */
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# VoltL2 int `json:"Volt_L2"` /* Voltage L2 */
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# VoltL3 int `json:"Volt_L3"` /* Voltage L3 */
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# }
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# type TwoFasesMessageType3 struct { // Also known as Items14
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# BaseItem
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# ObisListVersion string `json:"OBIS_List_Version"` /* OBIS Code 1.1.0.2.129.255 - OBIS List Version Identifier */
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# Gs1 string `json:"GS1"` /* OBIS Code 0.0.96.1.0.255 - Meter-ID(GIAI GS1 - 16 digits */
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# MeterModel string `json:"Meter_Model"` /* OBIS Code 0.0.96.1.7.255 - Meter Type */
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# ActPowPos int `json:"Act_Pow_P_Q1_Q4"` /* Active Power + */
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# ActPowNeg int `json:"Act_Pow_M_Q2_Q3"` /* Active Power - */
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# ReactPowPos int `json:"React_Pow_P_Q1_Q2"` /* Reactive Power + */
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# ReactPowNeg int `json:"React_Pow_M_Q3_Q4"` /* Reactive Power - */
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# CurrL1 int `json:"Curr_L1"`
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# VoltL1 int `json:"Volt_L1"`
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# DateTime time.Time `json:"Date_Time2"` /* OBIS Code: 0.0.1.0.0.255 - Clock and Date in Meter */
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# ActEnergyPos int `json:"Act_Energy_P"`
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# ActEnergyNeg int `json:"Act_Energy_M"`
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# ReactEnergyPos int `json:"React_Energy_P"`
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# ReactEnergyNeg int `json:"React_Energy_M"`
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# }

‎lib/han_ams/Parser.ex

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defmodule HanAms.Parser do
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def parse(bytes) do
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<<0x7E, header::size(18), rest>> = bytes
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IO.inspect(rest)
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end
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end

‎lib/han_ams/application.ex

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defmodule HanAms.Application do
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# See https://hexdocs.pm/elixir/Application.html
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# for more information on OTP Applications
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@moduledoc false
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@target Mix.target()
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use Application
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def start(_type, _args) do
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# See https://hexdocs.pm/elixir/Supervisor.html
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# for other strategies and supported options
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opts = [strategy: :one_for_one, name: HanAms.Supervisor]
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Supervisor.start_link(children(@target), opts)
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end
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# List all child processes to be supervised
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def children(:host) do
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[
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# Starts a worker by calling: HanAms.Worker.start_link(arg)
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# {HanAms.Worker, arg},
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]
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end
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def children(_target) do
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[
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# Starts a worker by calling: HanAms.Worker.start_link(arg)
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# {HanAms.Worker, arg},
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]
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end
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end

‎mix.exs

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defmodule HanAms.MixProject do
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use Mix.Project
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@all_targets [:rpi, :rpi0, :rpi2, :rpi3, :rpi3a, :bbb, :x86_64]
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def project do
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[
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app: :han_ams,
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version: "0.1.0",
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elixir: "~> 1.8",
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archives: [nerves_bootstrap: "~> 1.5"],
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start_permanent: Mix.env() == :prod,
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build_embedded: true,
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aliases: [loadconfig: [&bootstrap/1]],
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deps: deps()
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]
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end
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# Starting nerves_bootstrap adds the required aliases to Mix.Project.config()
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# Aliases are only added if MIX_TARGET is set.
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def bootstrap(args) do
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Application.start(:nerves_bootstrap)
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Mix.Task.run("loadconfig", args)
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end
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# Run "mix help compile.app" to learn about applications.
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def application do
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[
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mod: {HanAms.Application, []},
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extra_applications: [:logger, :runtime_tools]
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]
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end
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# Run "mix help deps" to learn about dependencies.
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defp deps do
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[
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# Dependencies for all targets
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{:nerves, "~> 1.4", runtime: false},
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{:shoehorn, "~> 0.4"},
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{:ring_logger, "~> 0.6"},
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{:toolshed, "~> 0.2"},
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# Dependencies for all targets except :host
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{:nerves_runtime, "~> 0.6", targets: @all_targets},
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{:nerves_init_gadget, "~> 0.4", targets: @all_targets},
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{:nerves_firmware_ssh, "~> 0.4", targets: @all_targets},
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# Dependencies for specific targets
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{:nerves_system_rpi, "~> 1.6", runtime: false, targets: :rpi},
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{:nerves_system_rpi0, "~> 1.6", runtime: false, targets: :rpi0},
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{:nerves_system_rpi2, "~> 1.6", runtime: false, targets: :rpi2},
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{:nerves_system_rpi3, "~> 1.6", runtime: false, targets: :rpi3},
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{:nerves_system_rpi3a, "~> 1.6", runtime: false, targets: :rpi3a},
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{:nerves_system_bbb, "~> 2.0", runtime: false, targets: :bbb},
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{:nerves_system_x86_64, "~> 1.6", runtime: false, targets: :x86_64}
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]
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end
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end

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