UM1870 datasheet(37/58 Pages) STMICROELECTRONICS

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UM1870

BlueNRG-MS sensor profile demo

BlueNRG-MS can send notifications of the characteristic that has been previously added,

with UUID 0xA002 (after notifications have been enabled). This can be done using the

following command:

–

ACI_GATT_UPD_CHAR_VALUE(Service_Handle=0x000C,

Char_Handle=0x000D, Val_Offset=0, Char_Value_Length=0x05,

Char_Value='hello')

Once this ACI command has been sent, the new value of the characteristic will be displayed

on the phone.

5.4

BlueNRG-MS sensor demo: central profile role

This application implements a basic version of the BlueNRG-MS Sensor Profile Central role

which emulates the BlueNRG-MS Sensor Demo applications available for smartphones

(iOS and Android).

It configures a BlueNRG-MS device as a BlueNRG-MS Sensor device, Central role which is

able to find, connect and properly configure the free fall, acceleration and environment

sensor characteristics provided by a BlueNRG-MS development platform, configured as a

BlueNRG-MS Sensor device, Peripheral role.

This application uses a new set of APIs that allow the performance of the following

operations on a BlueNRG-MS Master/Central device:

– Master Configuration Functions

– Master Device Discovery Functions

– Master Device Connection Functions

– Master Discovery Services & Characteristics Functions

– Master Data Exchange Functions

– Master Security Functions

– Master Common Services Functions

These APIs are provided through binary libraries available on Projects\Bluetooth

LE\Profile_Framework_Central\library. The master library APIs are documented in doxygen

format within the SW package.

The BlueNRG-MS Sensor Demo Central role is supported on the BlueNRG-MS

development platform (STEVAL-IDB005V1).

The sections that follow describe how to use the master library APIs for configuring a

BlueNRG-MS Sensor Demo Central device.

5.4.1

Initialization

BlueNRG-MS's master library must be correctly initialized before establishing a connection

with another

Bluetooth LE device. This is done with this command:

– Master_Init(&param)

param variable allows to set the initialization parameters (device address, name, …).

Refer to the master library doxygen documentation for more information about the

command and related parameters.

On the application main loop, the Master_Process() API has to be called in order to process

the Master library state machines.

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