1 Minimalist Microcontroller: Building a Bare-Bones Dev Board
Pointed to as a demonstration of how few parts an ESP32-S3 board really requires, including programming over its built-in USB, when designing a custom board.
Topic
minimal circuit
3 videos. Ranked by independent recommendations, not by views.
2 Attiny85 driving RGB LED powered by 20mm coin cell
Linked to show an ATtiny85 driving an RGB LED directly from a coin cell, illustrating how little supporting hardware such a chip needs.
3 Easy S3 PCB and Schematic - it’s really simple.
Treated as a useful entry in a series on designing your own ESP32 board, showing how few parts a working circuit can need.
