Detect when BLE connection is made (Arduino library)

[Jens Noriʇzsɔɥ]

Another question that popped in my mind, is it possible to create a custom experiment(using the editor tool/xml code) that includes a button to trigger the in-app graphical display while simultaneously sending the button state to the Arduino BLE device?   

What do you mean by trigger: resetting a graph or tapping the “play” button? There is some discussion on sending button states inside tabs at https://phyphox.org/forums/showthread.php?tid=1640