This is a good article to read if you are looking for some practical considerations on using zephyr
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Very good and detailed article about the tradeoffs:
Summary:
Use FreeRTOS if:
- You’re building a small, resource-limited system that doesn’t need complex scheduling.
- You want full control over hardware and don’t mind writing your own drivers.
- You need something lightweight that runs on nearly any microcontroller .
- Your project is short-term or doesn’t require long-term updates.
- You don’t need built-in security, memory protection, or networking – or you’re okay implementing them manually.
Use Zephyr if:
- You’re building a scalable, long-term project that needs updates and maintainability.
- You need real security (e.g., medical, industrial, automotive applications).
- Your system requires true multithreading and advanced scheduling policies .
- You want built-in networking, security, and a unified device driver model .
- You’re willing to invest time upfront to learn the framework in exchange for fewer debugging nightmares later .
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