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esp-idf/examples/wifi/power_save
History
xuxiao 8780375859 feat(wifi): add wifi support for esp32c61
2024-08-30 20:43:06 +08:00
..
image Power consumption graphs were added to ulp and wifi power save examples 2020-09-17 13:20:09 +02:00
main refactor(uart_vfs): Move uart implementation of vfs to esp_driver_uart 2023-12-15 17:14:55 +08:00
CMakeLists.txt tools: Increase the minimal supported CMake version to 3.16 2022-06-01 06:35:02 +00:00
pytest_wifi_power_save.py fix(ci): some actions taken to pass ci 2024-08-29 14:15:41 +08:00
README.md feat(wifi): add wifi support for esp32c61 2024-08-30 20:43:06 +08:00
sdkconfig.ci.c2_xtal26m ci(wifi): add wifi powersave pytest case 2023-08-10 16:26:28 +08:00
sdkconfig.ci.default ci(wifi): add wifi powersave pytest case 2023-08-10 16:26:28 +08:00
sdkconfig.ci.pd_top ci: enable hardware crypto module for powersave tests 2024-02-02 11:21:44 +08:00
sdkconfig.defaults examples/wifi/power_save: use 1000Hz freertos tick to lower sleep time threshold 2023-03-06 10:58:18 +08:00

README.md

Supported Targets ESP32 ESP32-C2 ESP32-C3 ESP32-C6 ESP32-C61 ESP32-S2 ESP32-S3

Wifi Power Save Example

This example shows how to use power save mode of wifi.

Power save mode only works in station mode. If the modem sleep mode is enabled, station will switch between active and sleep state periodically after connecting to AP successfully. In sleep state, RF, PHY and BB are turned off in order to reduce power consumption. Station can keep connection with AP in modem sleep mode.

  • No power save: This is default mode. And the esp32 will work with full power.

  • Minimum modem sleep: In minimum modem sleep mode, station wakes up every DTIM to receive beacon. Broadcast data will not be lost because it is transmitted after DTIM. However, it can not save much more power if DTIM is short for DTIM is determined by AP.

  • Maximum modem sleep: In maximum modem sleep mode, station wakes up every listen interval to receive beacon. Broadcast data may be lost because station may be in sleep state at DTIM time. If listen interval is longer, more power is saved but broadcast data is more easy to lose.

  • others: not supported yet.

Typical current consumption with management enabled

current consumption with CONFIG_PM_ENABLE enabled

Typical current consumption with management disabled

current consumption with CONFIG_PM_ENABLE disabled

Note that current consumption and average current are higher when disabled.