Open-source boards designed in KiCad by NeuroCircuits on GitHub, from 2 repositories. A board’s address here is its repository’s there.
NeuroCircuits/ESP32-S3-Rover-Controller-PCB
Custom ESP32-S3 based controller PCB for a 6-wheel robotic platform, featuring servo control, DC motor drivers, IMU, RFID, USB programming, and dedicated power regulation.
NeuroCircuits/transformerless-power-supply
A compact, transformerless AC-to-DC power supply design utilizing a capacitive dropper topology. Includes complete schematic routing and PCB layout files.