RT-Thread is an open source IoT operating system from China.
EasyFlash 是一款开源的轻量级嵌入式 Flash 存储器库，主要为MCU(Micro Control Unit)提供便捷、通用的上层应用接口，可以让 Flash 作为小型 KV 数据库。
Full-featured embedded GUI library with animation, opacity and anti-aliasing using one frame buffer
The extensible bootloader for embedded system with application engine, write once, run everywhere.