Not applicable with BT/BLE… but BLYNK_CONNECTED (and possibly Blynk.connected()) should function in same capacity as the App IS the Server link.
As discused very recently here - [SOLVED] Can ESP32 BT mode use "BLYNK_APP_CONNECTED ()"?
Not applicable with BT/BLE… but BLYNK_CONNECTED (and possibly Blynk.connected()) should function in same capacity as the App IS the Server link.
As discused very recently here - [SOLVED] Can ESP32 BT mode use "BLYNK_APP_CONNECTED ()"?