ESP8266 Community Forum

Hi, I want my ESP8266 to be as eco as possible.
I'm wondering why it leaves RTC turned on in deep-sleep mode? What are the advantage of this? What is RTC used for?
Is it a better idea to connect ESP8266 with transistor and then control that transistor using microcontroller (μC is in my project anyway)?
Or... actually... Should I connect reset pin of esp8266 to one of GPIO of my μC? Why use transistor?

Thanks in advance,
Defozo

Hi !
Running RTC in deep sleep mode allows self awake after programmed time.
Without that ESP8266 could not awake by himself without an external pulse on Reset.

Hi, if you don't want the clock to be left running have a look at this:
viewtopic.php?f=11&t=4458