- Sat Feb 16, 2019 6:39 am
#80585
No. That won't work.
In deep sleep the ESP8266 is doing nothing except potentially running a deep sleep counter which can send a pulse out on GPIO16 when it terminates. The CPU is off and it is not monitoring any GPIO.
The only ways out of deep sleep are to pulse the reset line, or the EN line, or to power cycle it.
The GPIO16 end of deep sleep pulse may be used to wake it back up by connecting to reset, or external circuitry can be used to do something with reset or EN. I actually prefer using EN as it is a raw input; the reset line normally has a timing capacitor which can complicate things.