# `NestGen2.Gesture`
[🔗](https://github.com/integration-technology/nest_gen2_sdk/blob/v0.6.6/lib/nest_gen2/gesture.ex#L1)

Clicks, double clicks and long presses, from the button's raw `:down` and
`:up` events. Subscribe to `:gesture` to receive:

    {:nest_gen2, :gesture, :click}
    {:nest_gen2, :gesture, :double_click}
    {:nest_gen2, :gesture, :long_press}

Timings (config, in ms):

  * `button_double_click_ms` (default 300): a second press starting within
    this long of the first release makes a double click. A single click is
    only known once this window has passed, so `:click` arrives that much
    after the release. Set it to `nil` for no double clicks and an
    immediate `:click`. Measured on a real Nest, a natural double click
    leaves 98 to 229 ms (mean 142) between the release and the second
    press, so 300 ms catches the slow ones while keeping a single click's
    delay short.
  * `button_long_press_ms` (default 800): held this long, `:long_press` is
    sent while the button is still down, and its release sends nothing more.
    Keep it well under 10 s: holding the display that long restarts the Nest.
    Ordinary presses measured 120 to 291 ms.

`:button` keeps sending `:down` and `:up` as they happen, for anything that
must respond at once.

# `child_spec`

Returns a specification to start this module under a supervisor.

See `Supervisor`.

# `start_link`

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