Tiny robot family

This is my 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 I have been playing with off and on for a long time”

Link