Bolu BL618 core board

Introduction:
 
This is a core board designed using the Bolu BL618 chip. It features an onboard CH340, camera interface, TF card interface, and all I/O pins are brought out for easy function verification. Bolu's chips are actually quite fun, but they're hard to find on personal use. On Taobao, only the 618 chip is available. Hopefully, Bolu will sell some chips for us to play with; I've been eyeing the BL606 for a long time...
 
 
Background:
 
I'm a pure hobbyist who enjoys tinkering with these things. Last year, I became familiar with this Bolu chip from Anxinke (Anxinke has used this chip to build many modules). I've been playing with it on and off for about six months. This chip is actually quite fun, but the ecosystem isn't great; you can't find anything on Baidu. Fortunately, Anxinke has been working on the open-source ecosystem for this chip. If you encounter any problems, you can find information on the Anxinke forum.
 
 
Physical demonstration:
 
 
 
 
 

Front view, referencing designs from similar boards, uses a USB switching chip. You can select whether the TP-Link EMC port connects to a serial port or a USB port by plugging and unplugging jumpers. Because the camera mount takes up space, I chose a surface-mount antenna.

 
 
 
 
 
 

Back view, I tucked in a TF card slot. It looks a bit awkward, but it fits. That's about it. If you encounter any problems, you can post your questions on the Anxinke forum.

 
 
 
Components:
 
    All resistors and capacitors are in 0603 packages. The BOM is inaccurate; I suggest referring directly to the schematic.
 
 
Let's add an LED!