Arexx sw 007a walking robot arexx engineering sw 007a the arexx sw 007 sky walker walking robot kit is a funny little robot with two sensors one sensor reacts to changes in light intensity the other to sound as a result the robot starts to walk and then stops automatically after a few secondsanyone can learn the basic principles of electronics with this educational robot project it comes as a build your own kit and is an attractive transparent blue colour the included guide not only