gistfile1.rb

  class Analoginput06b < ArduinoSketch
    
      #Example 06B Set the brightness of the LED to a brighness specified by the value
      #of the analgue input
      #page 67 Getting started with arduino

        output_pin 9, :as => :led #pin for led

        @val = 0

        def loop
          @val =  analogRead(0)

          analogWrite (led, @val/4)
          
          delay 10
        end
      
  end