Class: Phidgets::RFID::RFIDOutputs

Inherits:
Object
  • Object
show all
Defined in:
lib/phidgets-ffi/rfid.rb

Overview

This class represents an digital output for a PhidgetRFID All the properties of an digital output are stored and modified in this class.

Constant Summary collapse

Klass = 
Phidgets::FFI::CPhidgetRFID

Instance Method Summary collapse

Instance Method Details

#index ⇒ Integer

Returns index of the digital output, or raises an error.

Returns:

  • (Integer) —

    returns index of the digital output, or raises an error.



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# File 'lib/phidgets-ffi/rfid.rb', line 173

def index 
	@index
end

#inspect ⇒ Object

Displays data for the digital output



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# File 'lib/phidgets-ffi/rfid.rb', line 168

def inspect
  "#<#{self.class} @index=#{index}, @state=#{state}>"
end

#off ⇒ Boolean Also known as: off?

Returns true if the state is off.

Returns:

  • (Boolean) —

    returns true if the state is off.



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# File 'lib/phidgets-ffi/rfid.rb', line 200

def off
  !on
end

#on ⇒ Boolean Also known as: on?

Returns true if the state is true.

Returns:

  • (Boolean) —

    returns true if the state is true.



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# File 'lib/phidgets-ffi/rfid.rb', line 194

def on
  state == true
end

#state ⇒ Boolean

Returns state of the digital output, or raises an error.

Returns:

  • (Boolean) —

    returns state of the digital output, or raises an error.



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# File 'lib/phidgets-ffi/rfid.rb', line 187

def state
  ptr = ::FFI::MemoryPointer.new(:int)
  Klass.getOutputState(@handle, @index, ptr)
  (ptr.get_int(0) == 0) ? false : true
end

#state=(new_state) ⇒ Boolean

Sets the state of the digital output, or raises an error.

Parameters:

  • new_state (Boolean) —

    new state

Returns:

  • (Boolean) —

    sets the state of the digital output, or raises an error.



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# File 'lib/phidgets-ffi/rfid.rb', line 180

def state=(new_state)
  tmp = new_state ? 1 : 0
  Klass.setOutputState(@handle, @index, tmp)
  new_state
end