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Embedded Systems Architecture by Daniele Lacamera

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Low-power IoT systems

Mostly built on top of constrained microcontrollers, such as the Cortex-M0, low-power embedded systems are often little, battery-powered or energy-harvesting devices, sporadically connecting to remote services using wireless technologies. These small, inexpensive systems are often used in install-and-forget scenarios, where they can operate for years on a single integrated power source with nearly no maintenance costs.

Bare-metal architectures are still very popular in these scenarios, however, a few very lightweight operating systems have been designed to organize and synchronize tasks using as few resources as possible, while still keeping a specific focus on power saving and connectivity. The challenge for the development ...

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