2.1 KiB
Executable File
Bluetooth Magnetometer Service
~hint
For another device like a smartphone to use any of the Bluetooth "services" which the @boardname@ has, it must first be paired with the @boardname@. Once paired, the other device may connect to the @boardname@ and exchange data relating to many of the @boardname@'s features.
~
The Bluetooth magnetometer service allows another device such as a smartphone to wirelessly receive data from the @boardname@'s magnetometer. The magnetometer measures the strength and direction of magnetic fields including the earth's and so it can be used as a digital compass and indicate the way the @boardname@ is pointing relative to magnetic north.
Using the Bluetooth magnetometer service you could, for example, create a smartphone application which displays your direction of travel, updating it in real time.
No additional code is needed on the @boardname@ to use the Bluetooth magnetometer service from another device.
bluetooth.startMagnetometerService();
Example: Starting the Bluetooth magnetometer service
The following code shows the Bluetooth magnetometer service being started:
bluetooth.startMagnetometerService();
Video - Magnetometer service demo
http://www.youtube.com/watch?v=C_0VL4Gp4_U
Advanced
For more advanced information on the @boardname@ Bluetooth magnetometer service including information on using a smartphone, see the Lancaster University @boardname@ runtime technical documentation
See also
About Bluetooth, @boardname@ Bluetooth profile overview , @boardname@ Bluetooth profile reference, Bluetooth on @boardname@ resources, Bluetooth SIG
bluetooth