STC12C5A60S2 Minimum System

Bilibili video link: https://www.bilibili.com/video/BV1nN4y1r7Ej/?vd_source=22f2e51672b8e25786b9935cba3c3d13
Personal chat: Thanks to JLCPCB for the colorful silkscreen printing, it's beautiful and the colors are vibrant. I hope they can hold similar events again. Secondly, it's also good preparation for my studies; I've learned a lot, thank you very much.
                                 For those who aren't good at soldering, using reasonably priced, highly fluid solder wire will make soldering LQFP chips much easier. If you're not skilled, practice more, and you'll quickly master the technique and benefit. You can even slightly replace the micro USB port with the same device with larger pins to avoid failures that could damage your confidence.
 
The circuit has been tested and is working properly. The chip used is STC12C5A60S2, whose instruction code is fully compatible with the traditional 8051, but is 8-12 times faster. We can see that port COM4 is connected normally, and the program can be burned normally.
 
The circuit diagram is shown below. For
the burning process, if you can't see it clearly, you can watch the video link. I apologize for not knowing how to upload a video this time.
If this project has been helpful to you, please take a little time to give me a like. I would be very grateful to you. Please point out any shortcomings. Thank you very much.