CC2530 system board

This introduction

outlines all the I/O pins of the C2530, including 5V, 3.3V, and GND pins.
It features an onboard CH340 serial communication chip, eliminating the need for an external serial communication module.
The board includes two buttons (RST, P20) and five LEDs (P10~P14).
A full-size programming interface is provided, allowing direct connection to an emulator, which is also powered by the emulator.
An external antenna can be used, but in practice, the onboard antenna performs very well.
A 2-pin female connector allows for 5V external power or battery power.
A secondary board can be added for 8266 networking, relays, and other control circuits.

 
The module used is

the CC2530PA2 module from this manufacturer; I found a batch of leftover stock on Taobao (from Lao Wang's shop) at a very good price.
It uses the AT2401C-PA chip, controlling RX and TX via P11 and P14.
The onboard antenna is preferred and works very well.
The older version used an external antenna without impedance matching, and performed well within 20 meters. The new version has impedance matching, but I haven't tested it.
The pin-to-pin module is finished, but hasn't been verified yet. If all goes well, there will be versions with onboard antennas and SMA. For

 
others

, I can't help those who don't read comments or can't replicate
the design. Don't ask why this or that design is necessary; just copy and do it yourself.
Malicious comments will be deleted .

 
 
If you're in a hurry, design according to the image below: