It's always the board!

Is it this board?
https://www.waveshare.com/wiki/ESP32-C6-Zero
The RGB-LED WS2812B alone has a current around 450 µA when switched off and powered with 3.3V.

Just an additional information:
To get your current position the IDs of a WLAN network and an Internet access are sufficient. A browser can access databases of WLAN access points worldwide, you can check it here:

https://www.w3schools.com/html/html5_geolocation.asp

Just click "Try it yourself" and ...

What kind of notification? Which technology?
I'm using MQTT to send and receive messages on ESP32.

I have some ESP32 sensors running on batteries in a similar scenario using WLAN to send measurements every 10 minutes. Most of the battery power is used by the WLAN radio hardware even it's on for only a second. With about 4000 mAh battery capacity it can run up to 4 months on a standard board ...

Whether these components are compatible with ESP32 and each other.

This depends on the availability of libraries for these components for the development environment you want to use, e.G. ESP-IDF or Arduino.
I would start with an ESP32 Robot Starter Kit. These are widely available and should ...

power consumed must be in microamperes. how to manage that using ESP32Devkitc V4 and a MOSFET?

Not going to happen -> https://esp32.com/viewtopic.php?t=46102#p149079


so according to you is it not possible to bring the consumption down to microamperes using standard devkit boards? since ...

That's what I'm looking for:
Together with an FCC / EU Red certification
Is this module freely available from WaveShare ?
I see only the deb board with the module...

Yes, just click on the pictures on the right side and you see their shop!

There is a really small P4 board (with C6) from Waveshare: ESP32-P4-NANO

https://www.waveshare.com/wiki/ESP32-P4 ... e#Overview

I'm using an AHT20 sensor on a battery-driven board.
As already recommended here I power the sensor with a GPIO pin. After powering I wait 50ms by calling v
TaskDelay( 50 / portTICK_PERIOD_MS );
to get the sensor up.

One hint for hidden power consumers:
On one board I needed to call rtc_gpio ...

For example, if you need to monitor the battery voltage/level, you can't do that with LP core on ESP32C6 (because the ADC power domain isn't active when HP core is sleeping).



That's right, but with other ESP32-models it's possible. I'm using the original ESP32-ULP to check ADC-input from an ...