TL;DR
YouTuber ALTco has created an intriguing robot pet that operates entirely without a microcontroller, relying instead on analog electronics and solar power. This tiny robot, inspired by BEAM (Biology, Electronics, Aesthetics, Mechanics) robotics, uses light to guide its movements, exhibiting lifelike behavior without any programming. The project emerged from ALTco's experiences caring for frogs, leading to the design of a solar-powered robotic creature that can roam around without the need for a battery.