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Re: Current consumption during deep sleep (ESP8266 NodeMCU)

PostPosted: Sun Dec 12, 2021 6:08 am
by washburn_it
Thanks for all the advices.
Regards,


Roberto

Re: Current consumption during deep sleep (ESP8266 NodeMCU)

PostPosted: Thu Dec 16, 2021 8:55 am
by rpiloverbd
washburn_it wrote:Is there some "ESP8266" equipped board that absorbs less than the NodeMCU?

ESP32 has lower power consumption than ESP8266. Its current consumption is 10 micro ampere in deep sleep.
For further info regarding the low power modes of ESP32, you can see the following articles: https://www.theengineeringprojects.com/ ... modes.html
https://maker.pro/esp8266/tutorial/shou ... 6-to-esp32

Re: Current consumption during deep sleep (ESP8266 NodeMCU)

PostPosted: Thu Dec 16, 2021 9:15 am
by btidey
The power consumption of boards when the CPU is in deep sleep can be dominated by peripheral circuitry rather than the deep sleep current of the cpu itself. This will be the case irrespective of it being a ESP32 or ESP8266.

This is certainly the case for the NodeMCU type boards where the onboard usb serial interface will be drawing many times the current of the cpu itself.

Raw modules like the ESP-12F draw the least current in deep sleep as it is then just the deep sleep current of the CPU itself.

Re: Current consumption during deep sleep (ESP8266 NodeMCU)

PostPosted: Thu Dec 16, 2021 5:51 pm
by davydnorris
agree with @btidey here - you're best off getting the raw modules and designing your own board with most of the programming stuff on a piggyback.

The experimenter boards out there are great for getting things set up and for programming, but go a module once you're up and running