# `Grizzly.Supervisor`
[🔗](https://github.com/smartrent/grizzly/blob/v9.1.4/lib/grizzly/supervisor.ex#L1)

Supervisor for running the Grizzly runtime.

The Grizzly runtime handles command processing, command error isolation,
management of adding and removing devices, management of firmware updates,
and managing the underlining `zipgateway` binary.

If you are just using all the default options you can add the supervisor to
your application's supervision tree like so:

```
children = [
  Grizzly.Supervisor
]
```

The default configuration will look for the Z-Wave controller on the serial
device `/dev/ttyUSB0`, however if you are using a different serial device
you can configure this.

```
children = [
  {Grizzly.Supervisor, [serial_port: <serial_port>]}
]
```

`Grizzly` will try to run and manage the `zipgateway` binary for you. If
don't want `Grizzly` to do this you can configure `Grizzly` to not run
`zipgateway`.

```
children = [
  {Grizzly.Supervisor, [run_zipgateway: false]}
]
```

See the type docs for `Grizzly.Supervisor.arg()` to learn more about the
various configuration options.

# `arg`

```elixir
@type arg() ::
  {:run_zipgateway, boolean()}
  | {:serial_port, String.t()}
  | {:zipgateway_binary, String.t()}
  | {:zipgateway_config_path, Path.t()}
  | {:transport, module()}
  | {:zipgateway_port, :inet.port_number()}
  | {:manufacturer_id, non_neg_integer()}
  | {:hardware_version, byte()}
  | {:product_id, byte()}
  | {:product_type, byte()}
  | {:serial_log, Path.t()}
  | {:tun_script, Path.t()}
  | {:lan_ip, :inet.ip_address()}
  | {:pan_ip, :inet.ip_address()}
  | {:inclusion_handler, Grizzly.handler()}
  | {:firmware_update_handler, Grizzly.handler()}
  | {:unsolicited_destination, {:inet.ip_address(), :inet.port_number()}}
  | {:unsolicited_data_path, Path.t()}
  | {:database_file, Path.t()}
  | {:indicator_handler, (Grizzly.Indicator.event() -&gt; :ok)}
  | {:rf_region, rf_region()}
  | {:power_level, {tx_power(), measured_power()}}
  | {:zwave_firmware, Grizzly.Options.zwave_firmware_options()}
  | {:zw_programmer_path, Path.t()}
  | {:inclusion_adapter, module()}
  | {:trace_options, [Grizzly.Trace.trace_opt()]}
  | {:storage_adapter, {module(), Grizzly.Storage.Adapter.adapter_options()}}
  | {:storage_options, PropertyTable.options()}
```

Arguments for running `Grizzly.Supervisor`

- `:run_zipgateway` - boolean flag to set if Grizzly should be running and
  supervising the `zipgateway` binary. This is useful if you have local
  `zipgateway` running prior to Grizzly running. Default true.
- `:serial_port` - The serial the Z-Wave controller is is connected to.
   Defaults to `"/dev/ttyUSB0"`
- `:zipgateway_binary` - the path the zipgateway binary. Defaults to
  `"/usr/sbin/zipgateway`
- `:zipgateway_config_path` - the path write the zipgateway config file.
   Default to `"/tmp/zipgateway.cfg"`
- `:transport` - a module that implements the `Grizzly.Transport` behaviour.
  Defaults to `Grizzly.Transports.DTLS`
- `:zipgateway_port` - the port number of the Z/IP Gateway server. Defaults 41230.
- `:manufacturer_id` - the manufacturer id given to you by the Z-Wave
  Alliance
- `:hardware_version` - the hardware version of the hub
- `:product_id` - the product id of your hub
- `:product_type` - the type of product the controller is
- `:serial_log` - path to out but the serial log, useful for advanced
  debugging
- `:tun_script` - a path to a custom tun script if the default one does not
  work for your system
- `:port` - port for zipgateway to run its server one. Defaults to `41230`
- `:lan_ip` - the IP address of the LAN network. That is the network between
  the controlling machine and the Z-Wave network. Defaults to the default
  Z/IP LAN ip.
- `:pan_ip` - the IP for the Z-Wave private network. That is the devices IP
  addresses. Defaults to the default Z/IP Gateway PAN ip.
- `:inclusion_handler` - a module that implements the `Grizzly.InclusionHandler`
  behaviour. This is optional.
- `:firmware_update_handler` - a module that implements the
  `Grizzly.FirmwareUpdateHandler` behaviour. This is optional.
- `:unsolicited_destination` - configure the ip address and port number for
   the unsolicited destination server.
- `:unsolicited_data_path` - A path to the directory where the unsolicited
  server should persist data (defaults to `/root`)
- `:database_file` - `zipgateway` >= 7.14.2 uses an sqlite database to store
  information about the Z-Wave network. This will default to
  "/data/zipgateway.db".
- `:indicator_handler` - A function to run when an `Grizzly.Indicator.event()`
  is received from `zipgateway`. The function should accept an event and
  return `:ok`.
- `:rf_region` - Specify the RF region to be used by `zipgateway`
- `:power_level` - A tuple where the first item is the normal TX power level
  and the second item is the measured 0dBm power configuration. See Silabs
  INS14664 (MaxPowerCalc) spreadsheet to figure out the power numbers.
- `:zwave_firmware` - See `t:Grizzly.Options.zwave_firmware_options/0`
- `:zw_programmer_path` - Path to `zw_programmer` binary. Defaults to
  `/usr/bin/zw_programmer`.
- `:inclusion_adapter` - the network adapter for including and excluding
  devices
- `:storage_adapter` - a tuple where the first element is a module implementing
  the `Grizzly.Storage.Adapter` behaviour and the second element is an argument
  passed to the adapter when any of its functions are called.
- `:storage_options` - when using the default storage adapter (`Grizzly.Storage.PropertyTable`),
  these options will be passed to `PropertyTable.start_link/1`. It's highly recommended
  to enable persistence.

For the most part the defaults should work out of the box. However, the
`serial_port` argument is the most likely argument that will need to be
passed in has it is very much hardware dependent.

# `measured_power`

```elixir
@type measured_power() :: integer()
```

The output power measured from the antenna when the `tx_power()` is set to 0dBm

# `rf_region`

```elixir
@type rf_region() ::
  :eu | :us | :anz | :hk | :id | :il | :ru | :cn | :us_lr | :jp | :kr
```

The RF region code you want the Z-Wave controller to operate at.

* `:eu` - Europe
* `:us` - US
* `:anz` - Australia & New Zealand
* `:hk` - Hong Kong
* `:id` - India
* `:il` - Israel
* `:ru` - Russia
* `:cn` - China
* `:us_lr`- US long range
* `:jp` - Japan
* `:kr` - Korea

# `tx_power`

```elixir
@type tx_power() :: non_neg_integer()
```

The power level used when transmitting frames at normal power

See Silabs INS14664 (MaxPowerCalc) spreadsheet to figure out tx power levels.

# `child_spec`

Returns a specification to start this module under a supervisor.

See `Supervisor`.

# `start_link`

```elixir
@spec start_link([arg()]) :: Supervisor.on_start()
```

Start the Grizzly.Supervisor

---

*Consult [api-reference.md](api-reference.md) for complete listing*