Can I store value of variable to blynk server and sync back to hardware with Blynk.syncAll


Like Topic Subject, can I do that with value widget or some widget else?

Hello. Yes, you can.

Hi Dmitriy, thks for fast respone, I need more information:
I get value from doing something on hardware and push to value widget, after hardware restart, I need last value that pushed to server take back to hardware, I use Blynk.syncVirtual(Value Widget Pin), is it possible?

Yes, Correct.