ESP8266 Community Forum

- Sun Oct 18, 2015 5:26 am #31633 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

- Sun Oct 18, 2015 6:35 am #31642 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.

- Sun Oct 18, 2015 6:36 am #31643 Hi, if you don't want the clock to be left running have a look at this:
viewtopic.php?f=11&t=4458