How can in hardware sketch check if the APP is on/offline?
That functionality was added recently.
Ensure you have the slider in the app moved over to SEND APP CONNECTED COMMAND to ON.
Then take a look at this example https://github.com/blynkkk/blynk-library/blob/master/examples/More/AppConnectedEvents/AppConnectedEvents.ino
3 Likes
That is exactly what I need
thanks C