"Ping" like command from Cellular Device → Particle Cloud and back (Electron / E-Series)

I want to call a command to measure round trip delay of “ping” like message originating from a Electron / E-Series.

Is there something that I can call that quickly and reliable responds, such as a command for asking the Particle Cloud what version it is running or something? I don’t want to have to write my own server.


You can publish an event you subscribe to on the same device.