weston-embedded/uC-OS3

Health v2 · maintenance only

Adoption not part of the score

1086 stars · 350 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

µC/OS-III is a preemptive, highly portable, scalable real-time kernel (RTOS) originally developed by Micrium and now maintained by Weston Embedded Solutions. It is written in C and designed for use across a huge number of CPU architectures in mission-critical embedded applications.

Use cases

• run a preemptive real-time kernel on a microcontroller
• build safety-critical firmware for medical or aerospace devices
• schedule multiple tasks with deterministic timing on an embedded CPU
• port an RTOS to a new CPU architecture
• replace a bare-metal main loop with a multitasking kernel

When to choose

• you need a proven, certified RTOS for safety-critical products
• you want a highly portable kernel supporting many CPU architectures
• you need preemptive multitasking with scalability in embedded C

When to avoid

• you are building a desktop, mobile, or web application
• you need a general-purpose OS with drivers and a userland
• you prefer a modern open-source RTOS ecosystem like Zephyr with broader community tooling

Facets

library · maturity stable

embedded concurrency scheduling embedded-systems operating-systems embedded c iot cross-platform rtos real-time-kernel preemptive-scheduling micrium safety-critical real-time

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markdown · JSON · MCP: product_card(name="weston-embedded/uC-OS3")