# Power Management in NuttX

DevFeed: [Power Management in NuttX](<https://devfeed.tech/articles/power-management-in-nuttx-13751.md>)

Original publisher: [Read original article](<https://developer.espressif.com/blog/2026/02/power-management-in-nuttx/>)

Author: John Lee

Published: 2026-02-05T00:00:00Z

Content type: tutorial

Language: en

Sources: [Blog on Developer Portal](<https://devfeed.tech/sources/blog-on-developer-portal.md>)

Topics: [NuttX](<https://devfeed.tech/topics/nuttx.md>), [Espressif](<https://devfeed.tech/topics/espressif.md>), [Embedded Systems](<https://devfeed.tech/topics/embedded-systems.md>), [Embedded Software Dev](<https://devfeed.tech/topics/embedded-software-dev.md>), [systems](<https://devfeed.tech/topics/systems.md>), [ESP32](<https://devfeed.tech/topics/esp32.md>), [ESP32-C6](<https://devfeed.tech/topics/esp32-c6.md>)

Tags: [article](<https://devfeed.tech/tags/article.md>), [blog](<https://devfeed.tech/tags/blog.md>), [efficiency](<https://devfeed.tech/tags/efficiency.md>), [embedded](<https://devfeed.tech/tags/embedded.md>), [embedded-systems](<https://devfeed.tech/tags/embedded-systems.md>), [esp32-c6](<https://devfeed.tech/tags/esp32-c6.md>), [espressif](<https://devfeed.tech/tags/espressif.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [low-power](<https://devfeed.tech/tags/low-power.md>), [microcontrollers](<https://devfeed.tech/tags/microcontrollers.md>), [nuttx](<https://devfeed.tech/tags/nuttx.md>), [posix](<https://devfeed.tech/tags/posix.md>), [power-management](<https://devfeed.tech/tags/power-management.md>), [practitioner](<https://devfeed.tech/tags/practitioner.md>)

## AI overview

This tutorial explains power management on Espressif devices using NuttX. It describes Espressif power modes, NuttX power-management states, how the states map to one another, and how to control sleep modes from the shell or a custom application. It also introduces governors and discusses power-consumption measurements across multiple ESP chips.

## Source excerpt

This article walks through Espressif power modes and NuttX power states, then explains how they map to each other. Then it introduces NuttX's power management system and the concept of governors. The how-to part shows how to control sleep modes from the shell and a custom application. Finally, you will see real power-consumption measurements across multiple ESP chips to illustrate the practical impact using power states.