1. There is an automatic download circuit for CH340, and the chip uses CH340C, so you don’t need to use a crystal oscillator.
2. The power supply adopts DC-DC (because we are worried that it will require a current exceeding 1A and the LDO will generate too much heat) to ensure sufficient power supply.
3. All pins are lead out for easy use. Please refer to [Verified] ESP32S2 programming and debugging rack (compatible with ESP-12k lead out method. Each pin has a female header and a pin header interface, plus an unsoldered row. The solder pads facilitate the connection of various connectors.
v1.0 is currently under development and needs to be verified. If you have any questions, please give us guidance.
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