Do i understand this correctly? These are the four lines that actually do the work.
> BLYNK_WRITE(vRelayBtn) { // Blynk app WRITES button status to server
> vRelayStatus = param.asInt();
> if(vRelayStatus == 1){
> digitalWrite(relayPin, LOW); //
2-nd. Line vRelayStatus is getting last recorded state from the server?
3-rd line . If recorded value is 1,
4.th Then do give high signal on physical board pin too. ?
So is this mean that if the last state of the button and led in blynk mobile app and led/relay on physical board was on, i can physically unplug the power of the board,and after that plugged it again.That will automatically give high value on the physical pin of the board led/relay again?