It should be a silly question.
If I see in Blynk app, that the hardware is offline, the Blynk connected() is flase, right?
And if I see that hardware ia online, this boolean value goes true?
This functions will continue trying to connect to Blynk server. Returns true when connected, false if timeout have been reached. Default timeout is 30 seconds.
bool result = Blynk.connect();
bool result = Blynk.connect(timeout);