musical cube …

6-18 — elektor june 1980 timbug II Rather like a bat, the bug transmits a "radar beam" of ultrasonic sound which will be reflected by any obstacle in its path. Once this reflected signal has been detected the bug will alter its course. It does this simply by reversing a short distance while turning to the left or right at the same time. If the ihnbu4 IIpath in front of the bug is now clear it will move straight ahead thereby avoiding any obstacle. If, however, another object is detected the bug will continue to "wriggle its way out" by The initial design requirements for this "bug" were that it be able to "see" objects in its path and take avoiding action. It should also be as inexpensive and as simple as possible. As the circuit was designed around the ever popular 555 timer IC, and the circuit shown here is the Mk II version, it is not difficult to realise how it came to be christened Timbug II. By using just four timer ICs and a handful of other components a quite "intelligen...