ESP32 Forum

Posted: **Fri Oct 12, 2018 2:38 am**

In deep sleep mode，Wake up device by triggering IO：

const uint64_t ext_wakeup_pin_mask = (1ULL << 33);
esp_sleep_enable_ext1_wakeup(ext_wakeup_pin_mask, ESP_EXT1_WAKEUP_ALL_LOW);
esp_deep_sleep_start();

i can get evnets ESP_SLEEP_WAKEUP_EXT1，but Call function esp_sleep_get_ext1_wakeup_status(),return 0;
Use high level trigger to get IO number normally.

Posted: **Fri Oct 12, 2018 3:33 am**

https://esp32.com/viewtopic.php?f=14&t=6427

Posted: **Sat Oct 13, 2018 2:02 am**

WiFive wrote:https://esp32.com/viewtopic.php?f=14&t=6427

According to my understanding, because the trigger condition is ESP_EXT1_WAKEUP_ALL_LOW，So I can't judge which pin is triggered。
1、In this configuration,the function esp_sleep_get_ext1_wakeup_status always return 0？
2、Suppose I have three trigger pins, how to distinguish？

Posted: **Sat Oct 13, 2018 4:28 am**

If you have 3 trigger pins ALL_LOW means all 3 pins have to be low at the same time to wake up, you can't tell in which order they went low. There is no setting for ANY_LOW.

ESP32 Forum

GPIO as trigger source for wake-up sleep mode，When the wake-up event is triggered, get the pin number is 0.

GPIO as trigger source for wake-up sleep mode，When the wake-up event is triggered, get the pin number is 0.

Re: GPIO as trigger source for wake-up sleep mode，When the wake-up event is triggered, get the pin number is 0.

Re: GPIO as trigger source for wake-up sleep mode，When the wake-up event is triggered, get the pin number is 0.

Re: GPIO as trigger source for wake-up sleep mode，When the wake-up event is triggered, get the pin number is 0.