L2 R2：WCH Cortex-M3 MCU (CH32F103)
CH32F103 系列是基于32位Cortex-M3内核设计的通用微控制器。片上集成了时钟安全机制、多级电源管理、 通用DMA控制器等。 此系列具有 2 路 USB2.0接口、多通道 TouchKey、 12 位 DAC 转换模块，多通道 12 位 ADC、 多组定时器、 CAN 通讯控制器、 I2C/USART/SPI 等丰富的外设资源。
CH32F103 接口相对集中丰富，具有USB、CAN2.0B 、DAC，支持5.5V电压。
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
Django
The Web framework for perfectionists with deadlines.
Laravel
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
Microsoft
Open source projects and samples from Microsoft.
Google
Google ❤️ Open Source for everyone.
Alibaba
Alibaba Open Source for everyone
D3
Data-Driven Documents codes.
Tencent
China tencent open source team.
