Arm Mbed OS is a free, open-source embedded operating system designed specifically for the “things” in the Internet of Things. It includes all the features you need to develop a connected product based on an Arm Cortex-M microcontroller, including security, connectivity, an RTOS, and drivers for sensors and I/O devices. Mbed OS is now a Thread Certified Component. Using IPv6 with 6LoWPAN as the foundation, Thread technology provides a low-power, self-healing mesh network designed for the home.

How Mbed OS and Pelion Device Management Work


Pelion Device Management

Pelion Device Management provides the ability to efficiently and flexibly manage a wide range of IoT device profiles from constrained through to rich node or gateway. Built-in security from client to cloud establishes a trusted relationship, enabling a device’s lifecycle to be extended with in-field updates for unparalleled operational flexibility

Features and benefits of Mbed OS

Device and Component Support

With support for Mbed OS on a wide range of Arm Cortex-M based devices, developers can prototype IoT applications quickly on low-cost development boards.

Simple USB drag and drop programming allows you to rapidly prototype without the need for expensive debug hardware.

Real Time Software Execution

With an RTOS core based on the widely used open-source CMSIS-RTOS RTX, Mbed OS supports deterministic, multithreaded real time software execution. The RTOS primatives are always available, allowing drivers and applications to rely on features such as threads, semaphores and mutexes.

Open Source

Released under an Apache 2.0 licence, you can use Mbed OS in commercial and personal projects with confidence.

Ease of Use

With a modular libary structure, the necessary underlying support for your application will be automatically included on your device.

By using the Mbed OS API, your application code can remain clean, portable and simple, whilst taking advantage of security and communications.

We provide a huge range of code examples that you can import into your own projects, demonstrating how to use each of the APIs.


The Mbed community allows contribution and collaboration between Arm, over 60 partners, and hundreds of thousands of individual developers all over the world.

Many of our components and projects have been contributed by the community. Our forum and Q&A provide developers with community support, alongside GitHub for technical input.

End to End Security

We address security in device hardware, software, communication and in the lifecycle of the device itself:

Hardware Enforced Security At the lowest level of Mbed OS, we use a supervisory kernel called uVisor to create isolated security domains which restrict access to memory and peripherals.

Communications Security We take SSL and TLS, the standard protocols for securing communications on the internet, and allow you to include them in your Mbed project with a simple API.

Drivers and Support Libraries

Driver support for a wide range of standard MCU peripherals is included in Mbed OS. This includes digital and analog IO, interrupts, port and bus IO, PWM, I2C, SPI and serial.

The C libraries of each supported toolchain are also integrated into Mbed OS, including implementation of thread safety support.

Mbed OS Connectivity

A broad range of connectivity options are available in Mbed OS, supported with software libraries, development hardware, tutorials and examples.
  • Bluetooth LE
  • Wi-Fi
  • 6LoWPAN Sub-GHz Mesh
  • NFC
  • Thread
  • LoRa LPWAN
  • RFID
  • Ethernet
  • Cellular
Hi, I'm Harshvardhan Mishra. Tech enthusiast and IT professional with a B.Tech in IT, PG Diploma in IoT from CDAC, and 6 years of industry experience. Founder of HVM Smart Solutions, blending technology for real-world solutions. As a passionate technical author, I simplify complex concepts for diverse audiences. Let's connect and explore the tech world together! If you want to help support me on my journey, consider sharing my articles, or Buy me a Coffee! Thank you for reading my blog! Happy learning! Linkedin

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