How to handle Error 515?

[Furstein 44]

Hello.

I am developing an App for remote control via Bluetooth.

If the devices are not connected, an error reporting text pops up when you press one of the buttons that sends a message. 

Error: 515: Not connected to a Bluetooth device.

How can I handle this error? I would like to write a different message and add an "ok" button, so it's more user-friendly.

Cheers.

[Taifun]

before sending, make sure the device is connected

you can use the isConnected property for that

http://ai2.appinventor.mit.edu/reference/components/connectivity.html#BluetoothClient

see also

A simple Bluetooth Chat with App Inventor 2

Taifun