Class: Artoo::Adaptors::Littlewire

Inherits:
Adaptor
  • Object
show all
Defined in:
lib/artoo/adaptors/littlewire.rb

Overview

Connect to Digispark or Littlewire device using Little Wire protocol

See Also:

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(params = {}) ⇒ Littlewire

Returns a new instance of Littlewire.



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# File 'lib/artoo/adaptors/littlewire.rb', line 10

def initialize(params={})
  super

  params[:additional_params] ||= {}
  @vendor = params[:additional_params][:vendor] || 0x1781
  @product = params[:additional_params][:product] || 0x0c9f
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_name, *arguments, &block) ⇒ Object

Uses method missing to call Littlewire methods

See Also:



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# File 'lib/artoo/adaptors/littlewire.rb', line 58

def method_missing(method_name, *arguments, &block)
  littlewire.send(method_name, *arguments, &block)
end

Instance Attribute Details

#littlewire ⇒ Object (readonly)

Returns the value of attribute littlewire.



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# File 'lib/artoo/adaptors/littlewire.rb', line 8

def littlewire
  @littlewire
end

#product ⇒ Object (readonly)

Returns the value of attribute product.



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# File 'lib/artoo/adaptors/littlewire.rb', line 8

def product
  @product
end

#usb ⇒ Object (readonly)

Returns the value of attribute usb.



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# File 'lib/artoo/adaptors/littlewire.rb', line 8

def usb
  @usb
end

#vendor ⇒ Object (readonly)

Returns the value of attribute vendor.



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# File 'lib/artoo/adaptors/littlewire.rb', line 8

def vendor
  @vendor
end

Instance Method Details

#connect ⇒ Boolean

Creates connection with littlewire board

Returns:

  • (Boolean) 


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# File 'lib/artoo/adaptors/littlewire.rb', line 20

def connect
  require 'littlewire' unless defined?(::LittleWire)
  @littlewire = ::LittleWire.new(connect_to_usb)
  super
  return true
end

#connect_to_usb ⇒ Object 



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# File 'lib/artoo/adaptors/littlewire.rb', line 49

def connect_to_usb
  @usb = LIBUSB::Context.new.devices(
    :idVendor  => vendor,
    :idProduct => product
  ).first
end

#digital_read(pin) ⇒ Object 



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# File 'lib/artoo/adaptors/littlewire.rb', line 40

def digital_read(pin)
  littlewire.digital_write(pin, true)
  littlewire.digital_read(pin)
end

#disconnect ⇒ Boolean

Closes connection with littlewire board

Returns:

  • (Boolean) 


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# File 'lib/artoo/adaptors/littlewire.rb', line 29

def disconnect
  littlewire.finished
  super
end

#firmware_name ⇒ String

Returns firmware name of littlewire board

Returns:

  • (String) 


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# File 'lib/artoo/adaptors/littlewire.rb', line 36

def firmware_name
  "Little Wire"
end

#pwm_write(pin, level) ⇒ Object 



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# File 'lib/artoo/adaptors/littlewire.rb', line 45

def pwm_write(pin, level)
  littlewire.software_pwm_write(pin, level)
end