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ESP32C3 Minimum System Board, Portable Development Board

Overview

This development board is based on the ESP32C3-FH4 chip. The chip has a built-in USB port, eliminating the need for a serial port driver circuit; it can be directly connected to a computer for real-time downloading.
Bilibili demo link:
https://www.bilibili.com/video/BV1iw411e7zr/
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Note: IO12 (GPIO12) and IO13 (GPIO13) are multiplexed as SPI signals SPIHD and SPIWP in QIO mode. To increase the number of available GPIOs, when using self-compiled software, you need to configure the flash to DIO mode.
Errors present: 1. The silkscreen text for GPIO12 and GPIO13 is reversed and has not been corrected. You can manually modify the silkscreen during board assembly. 2. The switch is not connected.
The latest version has fixed all errors and optimized the back cover. Search "小O造物" on Bilibili and send me a private message for the latest files!

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2026-03-27 03:03:15

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