ESP8266 Community Forum

Posted: **Wed Jul 18, 2018 2:42 am**

I want to use a watchdog timer to reset the NodeMCU in case it 'freezes'.
Is there any example code using deepsleep and watchdog?

Posted: **Wed Jul 18, 2018 4:33 am**

I'm afraid it's a bit of a contradiction (in software): a SW-watchdog is active while the code is running and when deep sleep is active, no code is running.

You could, of course, create an external watchdog in hardware that trips when the ESP isn't woken from deep sleep. :idea:

Posted: **Wed Jul 18, 2018 4:50 am**

How about it 's harware watchdog? Can it be used?

Posted: **Wed Jul 18, 2018 5:24 am**

Both hardware and software watchdogs are there to catch running application freezes or timeouts.

In sleep nothing is running except for the timer that will trigger a wake. So the internal watchdogs are not relevant.

ESP8266 Community Forum

Deepsleep and Watchodog timer example?

Deepsleep and Watchodog timer example?

Re: Deepsleep and Watchodog timer example?

Re: Deepsleep and Watchodog timer example?

Re: Deepsleep and Watchodog timer example?