Ambiq adopts Zephyr RTOS

Ambiq has ported Zephyr RTOS to several of its Arm Cortex-M based microcontrollers.

Ambiq-Zephyr RTOS

Initially Apollo3 (Corex-M4), Apollo4 Plus (M4), Apollo4 Blue Plus (M4 + Bluetooth) and the upcoming Apollo510 (Cortex-M55) will be covered.

“Embedded developers, already working within the Zephyr environment, can easily port their software to Ambiq’s chips to take advantage of the much lower power consumption,” according to Ambiq, which uses sub-threshold operation to minimise the consumption of its ICs.


The Zephyr Project, hosted by the Linux Foundation, is an open-source collaborative effort to create a scalable RTOS (real-time operating system) with a small kernel for resource-constrained devices.


Websites: Zephyr Project and its GitHub, and Ambiq’s Zephyr GitHub.

Steve Bush

Steve Bush is the long-standing technology editor for Electronics Weekly, covering electronics developments for more than 25 years. He has a particular interest in the Power and Embedded areas of the industry. He also writes for the Engineer In Wonderland blog, covering 3D printing, CNC machines and miscellaneous other engineering matters.

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