Shlonkin shows us his growing family of tiny robots based on ATtiny controllers, pager motors and photo-transistors.
These three little autonomous vehicles have a lot of similarities such as controller, battery and movement mechanism, and they all percieve the world through photo-transistor eyes. But they are all distinct designs with different capabilities and behaviors. They are the first members of a growing family of miniature robots that he has been playing with off and on for a long time
A key aspect of their design is at least one photo-transistor eye and one controlled LED. This allows them to interact in a meaningful way. Depending on how they are programmed, this could be as complex as data transmission between bots or as simple as interfering with the sight of other bots. The resulting interaction would also depend on the type of bots. For example, the eyes of robot 1 point downward to scan the surface, while robot 3 only looks forward.