esp-idf/examples/wifi/power_save/sdkconfig.defaults

# Use lower CPU frequency
CONFIG_ESP32_DEFAULT_CPU_FREQ_80=y
# Enable support for power management
CONFIG_PM_ENABLE=y
# Enable tickless idle mode
CONFIG_FREERTOS_USE_TICKLESS_IDLE=y
# Use RTC timer as reference
CONFIG_PM_USE_RTC_TIMER_REF=y
examples/power_save: enable modem sleep and DFS by default 2017-10-10 00:33:47 -04:00			`# Use lower CPU frequency`
			`CONFIG_ESP32_DEFAULT_CPU_FREQ_80=y`
			`# Enable support for power management`
			`CONFIG_PM_ENABLE=y`
examples/wifi/power_save: enable tickless idle 2018-05-03 13:31:15 -04:00			`# Enable tickless idle mode`
			`CONFIG_FREERTOS_USE_TICKLESS_IDLE=y`
examples/power_save: enable modem sleep and DFS by default 2017-10-10 00:33:47 -04:00			`# Use RTC timer as reference`
			`CONFIG_PM_USE_RTC_TIMER_REF=y`