ESP32 expansion board

Version Description
Version Name: ESP32 Expansion Board V1.0
Release Date: 2023/11/15
I. Function Introduction
Project Introduction Video

This expansion board provides rich power and pin interfaces, making it ideal for learning and testing.

II. Screenshots
III. Functional Modules
1. Power Interface
Expansion Board Design Two power inputs: 5V and 3.3V. The 5V input uses a classic Type-C design and a 2-pin connector. The 3.3V input uses a 2-pin connector.
Four outputs are provided for both 5V and 3.3V to meet the needs of complex scenarios.
2. Switch Module
One switch is designed for both 5V and 3.3V, a standard design. Indicator lights are used to indicate the switch status.
3. Reset and Flashing Buttons
Reset and flashing buttons are provided for greater convenience. Flashing can be performed in conjunction with the ESP32 flashing sequence.
4. Flashing Interface
Directly connects to the ESP32 flashing board, reflecting a modular approach that reduces costs and increases efficiency.
5. Main Control Module
: The main control module uses the general-purpose ESP32-WROOM-32E, with built-in WIFI and Bluetooth modules. It features a dual-core MCU, ensuring stability and power.
6. IIC Interface
: Three IIC interfaces are reserved to meet simple application scenarios.
7. SPI Interface
: Two SPI interfaces are reserved to meet simple application scenarios.
8. ADC Interface :
Sixteen ADC interfaces are brought out, which can also be used as ordinary GPIO.
9. UART Interface
: Two UART interfaces are brought out, which can also be used as ordinary GPIO.
IV. Notes:

This project will be continuously improved and
updated. Update time: 15th or the last day of each month.
Materials can be obtained through:
UP: open01_T_Jupiter; duduvue;
QQ: 826793815.


Subsequent open-source projects and updates will be released on Bilibili, LCSC Open Source Platform, Github, and Gitee. Please follow for real-time updates!