air001 Mini Development Board

The mini development board developed for HeZhou air001 has been tested and verified.
Feel free to discuss any issues in the comments section
 
. Important notes:
The programming interface only requires soldering 7 pins; you can directly cut an 8-pin header and solder it on (refer to the cover).
 
Differences from the official development board:
A bunch of interfaces have been removed (such as BOOT, RST, etc., controlled directly by buttons, but generally not needed except for programming).
To simplify component soldering, the automatic download circuit has been removed.
The original 3 LEDs have been changed to 2 (one lights up upon power-on, the other is controlled by PB_0, lighting up when pulled low).
This is a 4-layer board
// very small, probably no smaller…
The IIC interface has been separated, allowing direct insertion into an IIC screen (the official version also has a separate interface, but that needs to be soldered in reverse…).
The header has been changed to a female header for easier wiring (you can also solder headers, but note the gap between the two rows of headers, preventing insertion into the breadboard).
5V and GND are separately brought out for easier power supply
. TYPE-C has been changed to microB for easier soldering.
 
2024.03 Update:
Now HeZhou charges shipping fees, the AIR001's cost-effectiveness is practically nonexistent, and I no longer recommend purchasing it. [RIP Luat]