lib/artoo/drivers/button.rb in artoo-arduino-1.0.0.pre vs lib/artoo/drivers/button.rb in artoo-arduino-1.0.1

@@ -28,10 +28,11 @@
         super
       end
 
       def handle_events
         while i = find_event("digital-read-#{pin}") do
-          update(events.slice!(i).data.first)
+          event = events.slice!(i)
+          update(event.data.first) if !event.nil?
         end
       end
 
       def find_event(name)
         events.index {|e| e.name == name}