Yd-esp32-s3 Schematic

[Antenna] --> [Matching Network] --> LNA_IN (Pin 35)

If you need a (e.g., exact values for the antenna matching network or the auto-program circuit), I can draw that small section as an ASCII schematic. Let me know. yd-esp32-s3 schematic

The AMS1117 has a dropout voltage of ~1.1V. This means if your input drops below 4.4V, the 3.3V rail will collapse. For battery-powered projects, you must bypass the onboard regulator. [Antenna] --> [Matching Network] --> LNA_IN (Pin 35)