17,000 contributions in 32K RAM
summary
Mbed OS is a full open source RTOS for microcontrollers with 17,000 commits and 400+ unique contributors, Apache‑2.0 licensed, plus a commercial support option (~$36,000/yr). The project runs CI on 1,000+ development boards and executes ~40,000 hours of real‑hardware tests per release. Tiny devices ship by the billions (31B last year), fit in a square centimeter, and can move from ~43 mA idle to ~300 nA deep‑sleep, run JerryScript and WebAssembly, and even TensorFlow‑style inference.
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chapters (14)
- 0:00Introduction
- 2:23Open source as tool
- 8:29ARM growth and MCU explosion
- 15:49Microcontroller limits and Zephyr OS
- 19:00Zephyr OS features
- 24:18Commercial support and cycles
- 27:08Community office hours
- 28:57CI and testing for Zephyr OS
- 31:50Hardware abstraction in Zephyr OS
- 35:31Low-power design in MCUs
- 37:37Getting started with Zephyr OS
- 41:28Zephyr Labs and projects
- 44:40JavaScript runtime on MCUs
- 46:10Summary and call to action
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