Contents

module Minilab
  class DigitalPortIo #@private
    constructor :minilab_wrapper, :digital_configuration, :library_translator

    def configure_input_port(port)
      @digital_configuration.configure_port_for_input(port)
    end
    
    def configure_output_port(port)
      @digital_configuration.configure_port_for_output(port)
    end

    def read_digital(pin)
      check_pin_configuration(pin, :input)
      @minilab_wrapper.read_digital_pin(get_library_pin_number(pin))
    end

    def write_digital(pin, value)
      check_pin_configuration(pin, :output)
      @minilab_wrapper.write_digital_pin(get_library_pin_number(pin), value)
      true
    end

    def read_port(port)
      raise "Digital port #{port} is not configured for input." unless @digital_configuration.is_port_configured_for_input?(port)
      @minilab_wrapper.read_port(@library_translator.get_library_port(port))
    end

    private
    def get_library_pin_number(pin)
      @library_translator.get_library_pin_number(pin)
    end

    def check_pin_configuration(pin, type)
      port = @library_translator.get_port_for_pin(pin)
      unless @digital_configuration.send("is_port_configured_for_#{type}?", port)
        raise "Digital port #{port} for pin #{pin} is not configured for #{type}."
      end
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
minilab-2.0.1-x86-mingw32	lib/minilab/digital_port_io.rb