ESP8266 Community Forum

- Sat Dec 20, 2014 3:06 pm #5262 I think you may be the first person to investigate how to do this.

There are some threads about using interrupts on this forum, eg viewtopic.php?f=6&t=420

But I have not seen them used to wake from sleep.

You may need to look at the disassembly of the SDK lib to see what the deep sleep API call does, as it must be using a timer interrupt somehow.

Unfortunately the source code for the SDK in c is not available, and a lot of the functions in the API are undocumented, and there isn't even an official doc for the current version of the SDK

- Sat Dec 20, 2014 3:11 pm #5263 Btw

See also this thread

http://bbs.espressif.com/viewtopic.php? ... &p=106#p96

It seems to imply that the chip has to use a GPIO output to reset its self.

Very odd!!!!!

- Sun Dec 21, 2014 4:12 am #5294

If I can use interupt from a single button to wake it from sleep I'll find a way to do it with multiple.

maybe adding some diode , a capacitor and a resistor will do job. haven't tried though. not sure if it will work. it's just the first thing that I pictured.

- Sun Dec 21, 2014 9:36 am #5317 I'll figure out something.

And I still didn't got answers to some questions:
To modify the firmware would require a usb to serial adapter right? (which would connect my laptop and the esp)
And how many input/output pins can I use on esp?