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updated bluetooth docs

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Peli de Halleux
2016-06-22 09:25:01 -07:00
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docs/reference/bluetooth/start-accelerometer-service.md
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@ -1,30 +1,33 @@
# Bluetooth Accelerometer Service
### ~hint
![](/static/bluetooth/Bluetooth_SIG.png)
For another device like a smartphone to use any of the Bluetooth "services" which the micro:bit has, it must first connect to the micro:bit.
### ~
The Bluetooth accelerometer service allows another device such as a smartphone to wirelessly receive data from the micro:bit's accelerometer. An accelerometer detects motion. More precisely, it measures acceleration in one or more of three directions which we call X, Y and Z.
Using the Bluetooth accelerometer service you could, for example, create a smartphone application which makes a loud noise whenever your micro:bit (or the important thing you've attached it to) is moved. Or you could use your micro:bit to control the movement of a cartoon character in a game on your smartphone just by tilting the micro:bit in the direction you want the character to move in.
No additional code is needed on the micro:bit to use the Bluetooth accelerometer service from another device.
~~~~sig
```sig
bluetooth.startAccelerometerService();
~~~~
```
### Example: Starting the Bluetooth accelerometer service
The following code shows the Bluetooth accelerometer service being started:
~~~~blocks
```blocks
bluetooth.startAccelerometerService();
~~~~
```
### Video - Accelerometer service demo - Starts at 0:18
[![micro:bit Bluetooth demo video](/static/bluetooth/microbit_accelerometer.png)](
http://www.youtube.com/watch?v=aep_GVowKfs "Click to launch YouTube video"
)
http://www.youtube.com/watch?v=aep_GVowKfs
### Advanced
@ -32,7 +35,8 @@ For more advanced information on the micro:bit Bluetooth accelerometer service i
### See also
[Bluetooth SIG](https://www.bluetooth.com)
[Bluetooth on micro:bit resources](http://bluetooth-mdw.blogspot.co.uk/p/bbc-microbit.html)
[Bluetooth SIG](https://www.bluetooth.com), [Bluetooth on micro:bit resources](http://bluetooth-mdw.blogspot.co.uk/p/bbc-microbit.html)
```package
microbit-bluetooth
```