Thanks to PCBWay for sponsoring this video! Get $5 of New User Free Credit by following this link - PCBWay is one of the most experienced PCB manufacturers in China, consider them your one-stop solution that offers PCB fabrication, turn-key PCB Assembly, PCB design, 3D printing, and CNC machining services. GitHub: Video of testing this board: Check out Unexpected Maker's ProS3 (and it's schematic for more learning): Get RF tools for KiCad: In this video, I simply just give you a full design rundown of my ESP32-S3 custom development board, the same one mentioned in the previous video. Hope you enjoy it, make sure to post any of your questions (or criticisms) in the comments section! Intro 0:00 Schematic - ESP32-S3 chip 0:37 Schematic - 16MB QSPI flash 1:12 Schematic - Power supply filtering 1:46 Schematic - Buttons (2x) 2:11 Schematic - Power circuits 2:56 Schematic - USB-C port + ESD protection 4:20 Schematic - Crystal 5:35 Schematic - LDO2 5:55 Schematic - Accessories 6:09 Schematic - Chip antenna 7:00 Schematic - Headers 8:14 PCB design (quick overview) 8:44 Ordering from PCBWay 13:10 Acid Jazz by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 licence. Source: Artist: