--- title: "Getting Started with (Apache) NuttX RTOS" url: https://daily.dev/posts/getting-started-with-apache-nuttx-rtos-zhh8w8muy source_url: https://www.embeddedrelated.com/showarticle/1524.php type: article source: "EmbeddedRelated" published: 2026-05-31T07:48:06.461Z updated: 2026-06-04T02:14:22.520Z tags: ["embedded", "linux", "rtos"] reading_time: 10 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Getting Started with (Apache) NuttX RTOS **[EmbeddedRelated](https://daily.dev/sources/embeddedrelated)** · 10 min read · 0 upvotes · 0 comments ## Summary A beginner-friendly introduction to Apache NuttX RTOS, covering what sets it apart from other RTOSes (FreeRTOS, Zephyr, VxWorks, etc.) through its strict POSIX compliance, broad MCU support (8-bit to 64-bit), and rich subsystems (USB, Ethernet, Audio, networking). The guide walks through setting up NuttX on Linux without any hardware by using the built-in simulator: installing dependencies, cloning the nuttx and apps repositories, configuring the sim:nsh target, compiling, and running the NuttShell (nsh). Readers can explore basic shell commands like ps, free, uname, and hello world before moving to real hardware. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#embedded](https://daily.dev/tags/embedded), [#linux](https://daily.dev/tags/linux), [#rtos](https://daily.dev/tags/rtos) [View this post on daily.dev](https://daily.dev/posts/getting-started-with-apache-nuttx-rtos-zhh8w8muy)