Send Bluetooth Low Energy (BLE) signals via command line

Hi,

I have tried several tools to send Bluetooth Low Energy (BLE) signals to an external device (e.g. BlueSee BLE Debugger or BSE32 BLE Terminal from the App Store).

Unfortunately, I have not found a way to access these tools via command line.

So I wondered, if sending Bluetooth signals is maybe even possible via command line without additional apps? Or if anyone knows a tool which I could use.

Thank you very much in advance!