3D printer wireless module ESP3D camera USB serial port

To enable more 3D printers to have wireless capabilities and accelerate the development of wireless modules, this project is open-sourced on JLCPCB (thanks to JLCPCB for their prototyping support). Enthusiasts with the skills can DIY it.
Bilibili video:
https://www.bilibili.com/video/BV1XD4y1t7kZ/?spm_id_from=333.999.0.0&vd_source=fb6ffe9208ca9ec9b2dfe1301811b6a4
Taobao link: https://item.taobao.com/item.htm?spm=a1z10.1-cs.w4004-24142695501.12.7b58177fuHejdA&id=692531243813
QQ Group: 550420226
 
I. Wiring Method Introduction
 
II. Webpage Operation Introduction
 
III. Function and Setting Method Introduction
 
IV. Program Download Introduction
 
V. Update Log
December 30, 2022 Update Notes:
1. Added relay control and USB communication selection switch
2. Corrected S8550 transistor wiring error (can still be used normally without correction)
3. Added TF card power control transistor to achieve compatibility with motherboards that drive TF cards via SDIO
 
 
November 20, 2022 Update Notes:
1. Added FPC to EXP2 ribbon cable connector adapter board
2. Some jumper caps changed to toggle switches
3. Added power button (requires remote power on/off module)
 
November 16, 2022 Update Notes:
Added shell STL file.
 
November 15, 2022 Update Notes:
1. Upload the BIN file of the ESP32S3N8 series chip. Download using flash download; no recompilation is required.
2. Download starting address: 0x0000.
3. After downloading, reset and restart. The module will generate a wireless network for ESP3D. After connecting, enter 192.168.0.1 in your browser to access the module control interface.
 
November 13, 2022 Update Notes:
1. Delete DAT0 and DAT2 leads from the PCB.
2. Add a lead for the CD insertion detection pin on the TF card.
 
November 11, 2022 Update Notes:
Change the voltage regulator chip from rt9013 back to AMS1117. Testing showed that the current (500mA) of rt9013 is insufficient, causing the camera to malfunction.