How to read a button status quickly?

[Madhukesh]

Relay Switch (Phyisical button and Widget) - working without internet

You have to apply both advices @PeteKnight to avoid being blocked when starting the system without WiFi/Internet/Blynk @Blynk_Coeur to avoid being blocked while being in the loop and being able to reconnect to WiFi/Blynk when WiFi/Internet connection reestablished But you also have to further isolate the code in checkPhysicalButton() from Blynk by calling Blynk.virtualWrite() only when Blynk is connected. You also can use millis() instead of BlynkTimer to check to know when to call checkPh…

Go through this topic. You will get an idea on how to send the status of the button.