ext_raspi.rb

require 'pi_piper'

class TimerModule
  class ExtensionModule
    class RasPi
      attr_reader :gpio

      def initialize
        @gpio = Hash.new
        @gpio[:select]   = PiPiper::Pin.new :pin => 26, :pull => :up
        @gpio[:next]     = PiPiper::Pin.new :pin => 20, :pull => :up
        @gpio[:previous] = PiPiper::Pin.new :pin => 16, :pull => :up
        @gpio[:power]    = PiPiper::Pin.new :pin => 21, :pull => :up
        @gpio[:trigger]  = PiPiper::Pin.new :pin => 25, :direction => :out
      end
    end
  end
end

TimerModule::Manager.instance.register(:ext, :raspi, TimerModule::ExtensionModule::RasPi.new)