lib/artoo/drivers/maxbotix.rb in artoo-gpio-0.0.1 vs lib/artoo/drivers/maxbotix.rb in artoo-gpio-0.1.0

@@ -33,10 +33,10 @@
         super
       end
 
       # Publishes events according to the ultrasonic rangefinder value
       def update(value)
-        last_reading = value
+        @last_reading = value
         publish(event_topic_name("update"), "range", range)
         publish(event_topic_name("range"), range)
       end
     end
   end