RT-Thread RTOS

What is RT-Thread?（RT-Thread是什么？）

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RT-Thread is an open source, neutral, and community-based real-time operating system (RTOS). RT-Thread has Standard version and Nano version. For resource-constrained microcontroller (MCU) systems, the Nano version that requires only 3 KB Flash and 1.2 KB RAM memory resources can be tailored with easy-to-use tools. For resource-rich IoT devices, RT-Thread can use the online software package management tool, together with system configuration tools, to achieve intuitive and rapid modular cutting, seamlessly import rich software packages; thus, achieving complex functions like Android's graphical interface and touch sliding effects, smart voice interaction effects, and so on.


RT-Thread 是一个开源 https://github.com/RT-Thread/rt-thread 中立、基于社区的实时操作系统（RTOS）。 RT-Thread有 标准版 和 Nano版。 对于资源受限的微控制器（MCU）系统，Nano版只需要3 KB的Flash和1.2 KB的RAM内存资源，并可使用易于使用的工具进行定制。 对于资源丰富的IoT设备，RT-Thread可以使用 在线软件包管理工具 和 系统配置工具，实现直观的快速模块化切割，无缝导入丰富的软件包； 从而实现像Android的图形界面和触摸滑动效果、智能语音交互效果等复杂功能。

Key features（主要特点）

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  • Designed for resource-constrained devices, the minimum kernel requires only 1.2KB of RAM and 3 KB of Flash.

  • A variety of standard interfaces, such as POSIX, CMSIS, C++ application environment.

  • Has rich components and a prosperous and fast growing package ecosystem

  • Elegant code style, easy to use, read and master.

  • High Scalability. RT-Thread has high-quality scalable software architecture, loose coupling, modularity, is easy to tailor and expand.

  • Supports high-performance applications.

  • Supports all mainstream compiling tools such as GCC, Keil and IAR.

  • Supports a wide range of architectures and chips


  • 专为资源受限的设备设计，最小内核仅需1.2KB的RAM和3 KB的Flash。

  • 具有多种标准接口，如POSIX、CMSIS、C++应用