An optically programmable SoC for an autonomous mm<sup>3</sup>-sized microrobot

Abstract

A microrobot is a robot under a few cubic millimeters in size. Miniaturizing its components, power source, sensors and actuators, has proven challenging. As a consequence, few autonomous microrobots have been reported until recently. These are simple mobile platforms, without sensors on board. Their electronics are basically focused on motion. I-SWARM is the first autonomous microrobot, 23mm3 and 70mg, designed to move, sense, take decisions, communicate and work in cooperation with other l-SWARM micro- robots. The area and weight of a microrobot are critical and limits the use of off-the-shelf components. So, it is required to integrate in a unique chip all the electronics, including the clock source, the POR and the voltage regulators.