38 lines
1.5 KiB
Markdown
Executable File
38 lines
1.5 KiB
Markdown
Executable File
# On Bluetooth Disconnected
|
|
|
|
### ~hint
|
|
|
|
|
|
For another device like a smartphone to use any of the Bluetooth "services" which the micro:bit has, it must first be [paired with the micro:bit](/reference/bluetooth/bluetooth-pairing). Once paired, the other device may connect to the micro:bit and exchange data relating to many of the micro:bit's features.
|
|
|
|
### ~
|
|
|
|
This block starts an [event handler](/reference/event-handler) which in this case will run when a device which is connected to your micro:bit over Bluetooth disconnects.
|
|
|
|
You could use this event handler to display a letter "D" on the micro:bit LED grid so you know that the Bluetooth connection has been closed.
|
|
|
|
```sig
|
|
bluetooth.onBluetoothDisconnected(() => {
|
|
});
|
|
```
|
|
|
|
### Example: Displaying "D" when a Bluetooth connection to the micro:bit is closed
|
|
|
|
```blocks
|
|
bluetooth.onBluetoothDisconnected(() => {
|
|
basic.showString("D");
|
|
});
|
|
```
|
|
|
|
### Video - on Bluetooth disconnected
|
|
|
|
http://www.youtube.com/watch?v=HyBcsD9Eh6I
|
|
|
|
### See also
|
|
|
|
[About Bluetooth](/reference/bluetooth/about-bluetooth), [micro:bit Bluetooth profile overview ](http://lancaster-university.github.io/microbit-docs/ble/profile/), [micro:bit Bluetooth profile reference](http://lancaster-university.github.io/microbit-docs/resources/bluetooth/microbit-profile-V1.9-Level-2.pdf), [Bluetooth on micro:bit resources](http://bluetooth-mdw.blogspot.co.uk/p/bbc-microbit.html), [Bluetooth SIG](https://www.bluetooth.com)
|
|
|
|
```package
|
|
microbit-bluetooth
|
|
```
|