ESP32-S3 Dev Board Assembly I finally assembled our ESP32-S3 dev boards—used a stencil for easy SMD work, fixed a few tiny USB solder bridges with flux, and even hand-built one for fun. The EPAD isn’t required (per the datasheet), power LEDs look good, and on macOS you can spot it under /dev before flashing. A quick boot-button dance and the blink sketch runs great—full build and walkthrough in the video. 13 November 2025