We have implemented a ESP_SLEEP_WAKEUP_EXT0 for a motion detector while in deep sleep. Using the same motion detector evaluation board (with pull-up resistors and filtering capacitors for stable signals) and same firmware (with pull-up enabled) from ESPRESSIF IDF, our in-house developed custom ...

We have a similar issue and maybe support can provide a solution or explanation.

Did you find the problem?

We have implemented a ESP_SLEEP_WAKEUP_EXT0 for a motion detector while in deep sleep. Using the same motion detector evaluation board (with pull-up resistors and filtering capacitors for ...

Trying to decide if we really need LDO regulators and IC switches based on our testing results.

1. The datasheet specifies the max power voltage as 3.6VDC, but I have used up to 4.15 VDC in testing prototypes for a year with no problems. Is the max still 3.6VDC?

2. We understand there is no DAC in ...

How do I enable getting the message during flashing that a partition is almost full and suggests that the partitions be changed?

Jay

Thanks for replying.
As you suggest, after more testing, it doesn't appear to be vTaskDelay() associated.
There are two deep sleep wakeups:
1. wakeup_ext0 - This wakeup if from a sensor driving GPIO1 to force a wakeup. This wakeup is behaving as expected, performing some operations, clearing the ...

vtaskdelay() causes the GPIO# assigned in esp_sleep_enable_ext0_wakeup(GPIO#, high) to immediately go high. (Behavior is observed via o-scope.) When the device goes to deep sleep, the device is immediately awaken with the wakeup cause "ext0 wakeup".

Removing the vtaskdelay() function, the GPIO# is ...

Have you tried reserving ULP memory via menuconfig already?

Hi. Thanks for replying.
We don't have a requirement to run code while in deep sleep, so I need more detail about your suggestion.

Also, the "ulp" in the 3rd party archive is misleading and is not associated with the ESP32S3 power ...

***Update****
For completeness, below is the message when the add_library(), set_property(), and target_link_library() entries are removed from CMakeLists.txt, reporting undefined references which are defined in the lib_iaq_2nd_gen_ulp.a:
*****
FAILED: wifi_prov_mgr3.elf
...
c:/espressif/tools ...

We want to place a 3rd party archive (.a) in RTC memory to preserve the state of the library during deep sleep.
There are no state change issues in normal running or light sleep.

Our CMakeList.txt contains:
***
idf_component_register(SRCS "app_main.c"
"...other source files...c"

INCLUDE_DIRS ...

I've searched the forums for any methods for esp32s3 chip input voltage (3.3v) monitoring and found nothing. I assume this would be a common issue for battery powered applications. So I have two questions :
1. Is there a API function specifically for monitoring the esp32s3 3.3v chip input?
2. if not ...