FreeRTOS
FreeReal-time operating system for microcontrollers and small microprocessors
About FreeRTOS
FreeRTOS is a market-leading real-time operating system designed specifically for microcontrollers and small microprocessors. It supports over 40 processor architectures with a small memory footprint and fast execution times. The kernel is trusted by world-leading companies and is distributed under the MIT open source license. FreeRTOS includes advanced features such as Symmetric Multiprocessing (SMP), a thread-safe TCP stack with IPv6 support, and seamless integration with cloud services. It offers Long Term Support (LTS) releases with security updates and critical bug fixes for two years, maintained by AWS. The ecosystem includes pre-configured demos, IoT reference integrations, broad toolchain support (15+), and a partner network spanning semiconductor, IDE, and productivity tool providers.
Key Features
Pros & Cons
- Proven robustness and tiny footprint suitable for resource-constrained devices
- Wide device support across 40+ architectures simplifies porting
- Free and open source under MIT license allows flexible use
- Active maintenance and long-term support from AWS
- Rich set of libraries including networking and cloud integration
- Large partner ecosystem and community resources