ESP8266 Community Forum

Is it possible that when an outside network device sends a ping request to the esp8266 module that can be detected in the sketch and acted upon? (i.e. flash an led). I know I could use sending a udp packet, or a http request to do this, but I'm working with an outside thing I can't change so was wondering if this was something I could tell the esp to look out for and trigger on?

No big deal if not, would just be nice to add a little bit of visual feedback on top of others it's already giving.

Sol

Afaik there is no API for a ping callback in the SDK.

Since sources for the LWIP library are available, it should be possible to add one, however you would either need to patch the arduino plugin or write your code without arduino.

Humm, that nudges it into the "lets do something more fun" category, thanks for the clarification