ESP8266 Community Forum

- Thu Feb 12, 2015 2:25 am #9532 Hello,

I have read a lot of article about the ESP8266 and the 'deep sleep mode'.
But I don't find an answer for my case:
It is possible to put the ESP8266 (ESP01 version) in deep sleed mode (for an infinit time) and wake it up with an Arduino ? (with rst pin for example)
If yes, which firmware I must put ont the esp chip ?

Thanks a lot for your answer.
(Sorry for my poor english, I speak french all day, don't english )

Last edited by Hexor on Thu Mar 12, 2015 6:06 pm, edited 1 time in total.

- Thu Feb 12, 2015 6:19 am #9540 Just connect CH_PD (pin 4 on ESP-01) to a GPIO of your Arduino, this way you can completely disable the ESP by pulling the GPIO low.

- Thu Feb 12, 2015 6:35 am #9541 yes it is possible. you can use with nodemcu and rst pin

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- Sat Feb 14, 2015 3:44 pm #9773 but is that a wake up or is it a reset?
I see Function 2 for GPIO16 (XPD_DCDC) to be EXT_WAKEUP and Function 3 to be DEEPSLEEP.
Maybe try using it in Func2? (You might need to solder a wire)