ABSTRACT
The elementary circuit that controls TuteBot serves its purpose well. Using only relays, potentiometers, bump switches, and some discrete components, TuteBot is able to avoid obstacles and follow walls. Adding a few more sensors and continuing in the same vein of using hard-wired logic for the intelligence system, many other interesting behaviors can also be designed. Rather than pursue this route, how ever, we now introduce a more sophisticated control element, the microprocessor. It has a number of advantages over hard-wired logic in terms of versatility, power consumption, size, and ease of use.
