Learn to optimize power consumption in battery-powered sensor devices using the Zephyr real-time operating system in this 43-minute conference talk from the Linux Foundation. Explore how Zephyr's Power Management Subsystem operates and discover techniques for integrating power management features into device drivers to extend battery life. Examine practical examples including battery level sensors and I2C sensors to understand various strategies for managing and minimizing energy usage in embedded systems. Compare different approaches to implementing power management within Zephyr and understand how sensor characteristics influence the selection of optimal power reduction methods. Analyze how different microcontrollers affect power consumption and learn how Zephyr facilitates quick platform switching for comparative power analysis across various hardware configurations.