Class: Artoo::Drivers::Button

Inherits:
Driver
  • Object
show all
Defined in:
lib/artoo/drivers/button.rb

Overview

Button driver behaviors for Firmata

Constant Summary collapse

DOWN = 
1
UP = 
0

Instance Attribute Summary

Attributes inherited from Driver

#parent

Instance Method Summary collapse

Methods inherited from Driver

#connection, #event_topic_name, #initialize, #interval, #method_missing, #pin

Methods included from Celluloid

#timers

Constructor Details

This class inherits a constructor from Artoo::Drivers::Driver

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Artoo::Drivers::Driver

Instance Method Details

#is_pressed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/artoo/drivers/button.rb', line 10

def is_pressed?
  (@is_pressed ||= false) == true
end

#start_driver ⇒ Object 



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# File 'lib/artoo/drivers/button.rb', line 14

def start_driver
  listener = ->(value) { update(value) }
  connection.on("digital-read-#{pin}", listener)
  connection.set_pin_mode(pin, Firmata::Board::INPUT)
  connection.toggle_pin_reporting(pin)

  every(interval) do
    connection.read_and_process
  end

  super
end

#update(value) ⇒ Object 



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# File 'lib/artoo/drivers/button.rb', line 27

def update(value)
  if value == DOWN
    @is_pressed = true
    publish(event_topic_name("update"), "push", value)
    publish(event_topic_name("push"), value)
  else
    @is_pressed = false
    publish(event_topic_name("update"), "release", value)
    publish(event_topic_name("release"), value)
  end
end