Without all the information, no - I don't have a crystal ball.
I see your App is "Voice Controlled Automation" which is ambitious. What does the laptop have to do with that?
You are using an Arduino, so we need more information about that:
- Arduino Model (e.g. UNO)
- Arduino Bluetooth module version
- We need to see the Arduino Sketch (Script), which you can post here by changing the extension from .ino to .txt.
- We need to know the Bluetooth version of all devices your App is to connect to. Modern devices are most likely to be BLE and not Classic Bluetooth, which your code is using now (but your code is not adequate for communications with an Arduino, or for speech driven commands).
I have no idea what that is!