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esp-idf/examples/system/deep_sleep
Historia
Ivan Grokhotkov 3c583a7655 sdkconfig: set CONFIG_ESP32_DEEP_SLEEP_WAKEUP_DELAY=2000 by default 
To increase the chances that the examples work out of the box, this
change is raising the default deep sleep wakeup delay to 1ms.
If GPIO15 is low at startup, ROM code takes less time to execute
(because no logging is performed), so more time may be needed to allow
flash chip to become ready.
 		2017-05-25 10:51:39 +08:00
..
main Add support for 32k XTAL as RTC_SLOW_CLK source 2017-04-26 12:43:22 +08:00
Makefile add deep sleep wake up example 2017-02-22 18:40:31 +08:00
README.md add deep sleep wake up example 2017-02-22 18:40:31 +08:00
sdkconfig.defaults sdkconfig: set CONFIG_ESP32_DEEP_SLEEP_WAKEUP_DELAY=2000 by default 2017-05-25 10:51:39 +08:00

README.md

Example: deep sleep

This example illustrates usage of deep sleep mode and various wakeup sources.

The following wake up sources are configured:

  • Timer: wake up the chip in 20 seconds
  • EXT1: wake up the chip if any of the two buttons are pressed (GPIO25, GPIO26)
  • Touch: wake up the chip if any of the touch pads are pressed (GPIO32, GPIO33)
  • ULP: wake up when the chip temperature changes by more than ~5 degrees Celsius (this value hasn't been characterized exactly yet).