AppBlocks vs. hand-written Zephyr firmware
Zephyr is a powerful open-source RTOS, and AppBlocks builds on it. The difference is how much of the project you write and maintain yourself. Here’s an honest look at both approaches.
Where the time goes
Same RTOS, same boards. Far less code to write, debug, and maintain.
Everything that makes Zephyr worth choosing.
AppBlocks doesn’t replace Zephyr. It generates the project you would otherwise assemble by hand.
Zephyr boards
Target Zephyr-supported boards from Nordic, Espressif, Raspberry Pi, and others.
Readable C code
Inspect the generated Zephyr C code, and extend it by hand whenever you need to.
No lock-in
Zephyr is open source, and you can download the generated source at any time.
No toolchain wrangling
CMake, Kconfig, device tree overlays, and west manifests are generated for you.
Stable by design
A static memory model with no heap, learned from two decades of Tibbo OS.
Days, not weeks
Skip the setup and plumbing, and start on what your device actually does.
When each approach makes sense
Choose AppBlocks when…
- You want working firmware in days, without a team of Zephyr specialists
- Your product needs a web console, settings, cloud management, or OTA updates, and you’d rather not build them
- The logic is event-driven: read sensors and inputs, decide, act, report
- Engineers and non-specialists need to read and review the logic together
Write it by hand when…
- You need a driver, subsystem, or tight timing loop that no block covers yet (you can still start in AppBlocks and extend the generated code)
- Your team already has a mature Zephyr codebase and build pipeline for the product
Questions, answered.
Is AppBlocks firmware real Zephyr firmware?
Yes. AppBlocks generates a Zephyr application in readable C code that you can inspect and extend.
Can I mix AppBlocks with hand-written code?
Yes. Custom Function blocks run code you write, and you can export the generated source to keep building on it by hand.
Am I locked in to AppBlocks?
No. AppBlocks targets open-source Zephyr RTOS, and you can download the generated firmware source at any time.
Ready to build your first firmware?
Start free in your browser, follow the tutorials, or book a free one-on-one session. No board yet? We’ll demonstrate everything on ours.