History

Xia Xiaotian 526a3e49ed esp_wifi: When WiFi TSF is active, skip light sleep * Add an API for peripherals to set callbacks to skip light sleep * Make WiFi power save example work		2020-05-13 19:31:36 +08:00
..
main	esp_wifi: When WiFi TSF is active, skip light sleep	2020-05-13 19:31:36 +08:00
CMakeLists.txt	build_app: make multi target support readable	2020-04-09 16:40:57 +08:00
Makefile	example: adding wifi example wps and power save.	2017-03-31 16:12:58 +08:00
README.md	esp_wifi: When WiFi TSF is active, skip light sleep	2020-05-13 19:31:36 +08:00
sdkconfig.defaults	examples/wifi/power_save: enable tickless idle	2018-05-18 03:14:46 +00:00

README.md

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.