![](https://vonger.cn/wp-content/uploads/2023/12/11710_1701743650_hd-1024x769.jpeg)
This is the working demo board, CH32V003 connect to V7B or MPRO driver board I2C interface. This way can save one USBHUB and ATMEGA, only need a very low cost CH32V003(0.1USD)
Source code upload to github.com/vonger/V7B_WS2812B
![](https://vonger.cn/wp-content/uploads/2023/12/Screenshot-from-2023-12-05-10-46-58.png)
We also make some demo boards, if you need them contact support(a)vocore.io