Espeasy: Add Ping plugin to Mega branch

[TD-er]

See forum

N.B. This now uses the blocking version of ping.
It should also send an event which can be used in plugins.

[lyndondr]

Any chance this will be added soon? Would there be a workaround to detect an internet connection or lack of a connection without the ping plugin?

[Grovkillen]

Just for info, related topic #950

[TD-er]

@lyndondr At this moment we're working full on getting things stable and fixing bugs, so handling feature request is at a lower priority right now.

[enesbcs]

How about this ping library?
https://github.com/bluemurder/esp8266-ping/blob/master/src/Pinger.cpp
As i see it is using os_timer_disarm() for waiting icmp echo, i am not sure if it is blocking function or not.

[TD-er]

@enesbcs That library is using a callback function, so it looks to me it is just what we may need.

[enesbcs]

For testing purposes:
https://github.com/enesbcs/ESPEasyPluginPlayground/blob/master/_P126_Ping.ino

[gumileeev]

Whether prompt there is a firmware already with the built-in plug-in? I can not figure out how to embed a plugin. Is it expected? Please show the instructions for installing the plugin.

[enesbcs]

Binary with P126 plugin:
https://www.letscontrolit.com/forum/download/file.php?id=3594

[gumileeev]

Binary with P126 plugin:
https://www.letscontrolit.com/forum/download/file.php?id=3594

Dear enesbcs! Thank you for answering my request for help. I managed to install the firmware on nodemcu, but failed to flash the sonof basic. I could not install this file in the Sonoff basic. Perhaps this file is 4M, Sonof basic have only 1M? Is there a similar file for 1M? Thanks a lot in advance!