ExWindspeed

Sensor is available for purchase from Adafruit. If using with a Raspberry Pi a MCP3008 is required for analog -> digital conversion, also available from Adafruit.

Installation

If available in Hex, the package can be installed by adding ex_windspeed to your list of dependencies in mix.exs:

def deps do
  [
    {:ex_windspeed, "~> 0.1.0"}
  ]
end

Then add :ex_windspeed to application/0 to start the supervision tree.

def application do
  [applications: [:ex_windspeed]]
end

Wind speed sensor specifications

• Output: 0.4V to 2V
• Testing Range: 0.5m/s to 50m/s
• Start wind speed: 0.2 m/s
• Resolution: 0.1m/s
• Accuracy: Worst case 1 meter/s
• Max Wind Speed: 70m/s
• Connector details:
  • Pin 1 - Power (brown wire)
  • Pin 2 - Ground (black wire)
  • Pin 3 - Signal (blue wire)
  • Pin 4 not connected

Wiring for use with a Raspberry Pi

Parts required:

• Wind speed sensor
• MCP3008

Documentation can be generated with ExDoc and published on HexDocs. Once published, the docs can be found at https://hexdocs.pm/ex_windspeed.