FreeRTOS and Arm microcontrollers help bring smart devices to market, including devices that securely connect to the cloud.​

FreeRTOS is a MIT licensed open source real-time operating system (RTOS) for microcontrollers that makes small, low-power edge devices easy to program, connect, deploy and manage. FreeRTOS includes a kernel and software libraries that enable you to securely connect devices locally and to the cloud, and to update them remotely after deployment. FreeRTOS users benefit from accelerated development and a global presence.

Tiny, power saving kernel

The FreeRTOS kernel is scalable, with usable program memory footprint as low as 9KB, and includes built-in power saving features.

Learn more

Modular libraries

Add-on software libraries for use across all industry sectors, including secure local or cloud connectivity.

Learn more

Portability

Learn how to use CMSIS-RTOS2 API with an underlying FreeRTOS to make your application code portable to different RTOS Kernels.

Get started

IoT reference integrations

Select your Arm based board and get started with the many pre-tested FreeRTOS example integrations and the useful libraries.

Learn more

FreeRTOS resources

Community Forums

Answered Forum FAQs
  • ARM Community
 0 votes 2835 views 0 replies Started 1 months ago by Annie Cracknell Answer this
Answered Forum FAQs
  • ARM Community
 0 votes 2848 views 0 replies Started 1 months ago by Annie Cracknell Answer this
Answered Forum FAQs
  • ARM Community
 0 votes 223 views 0 replies Started 1 months ago by Annie Cracknell Answer this
Answered Forum FAQs
  • ARM Community
 0 votes 225 views 0 replies Started 1 months ago by Annie Cracknell Answer this
Answered Forum FAQs Started 1 months ago by Annie Cracknell 0 replies 2835 views
Answered Forum FAQs Started 1 months ago by Annie Cracknell 0 replies 2848 views
Answered Forum FAQs Started 1 months ago by Annie Cracknell 0 replies 223 views
Answered Forum FAQs Started 1 months ago by Annie Cracknell 0 replies 225 views