The RoboMaid (warning sound) really has nothing robotic about it. The website proclaims “smart sensor technology” and “programmable”. It’s actually just a Weasel Ball in a cage. Reader [Perry Cain] decided to keep the cage and add some real electronic brains if the form of a Prallax kit. The robot has 5 IR pairs: 2 in front, 2 on the side and one in the back. He says it works pretty well, but he hasn’t added detection to keep it from going down the basement steps yet.