User's Manual

BLUEMICROSYSTEM2 software description

STEVAL-STLKT01V1

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 Free Fall detection

 Single tap detection

 Double tap detection

 Wake up detection

 Tilt detection

 3D orientation

This software gathers the temperature, humidity, pressure, audio and motion sensors

drivers for the HTS221, LPS25H, MP34DT01-M, LSM6DS0 (or LSM6DS3) and LIS3MDL

devices, running on STM32.

This package is compatible with the BlueMS Android/iOS (Version 2.0.0 or higher)

application available at respective Play/iTunes stores, which can be used for displaying

information sent via the Bluetooth low energy protocol. To use the hardware features of the

LSM6DS3 DIL24 device, use BlueMS Android/iOS application version 2.2.0 or higher.

1.2 Architecture

The software is based on the STM32CubeHAL hardware abstraction layer for the STM32

microcontroller.

The package provides a Board Support Package (BSP) for the sensors expansion board

and middleware components for serial communication with a PC.

To access and use the sensor expansion board, the application software uses:

 STM32Cube HAL layer: provides a simple, generic and multi-instance set of generic

and extension APIs (application programming interfaces) to interact with the upper

layer application, libraries and stacks. It is directly based on a generic architecture and

allows the layers that are built on it, such as the middleware layer, to implement their

functions without requiring the specific hardware configuration for a given

microcontroller unit (MCU). This structure improves library code reusability and

guarantees easy portability across other devices.

 Board support package (BSP) layer: supports the peripherals on the STM32 Nucleo

board (except the MCU) with a limited set of APIs providing a programming interface

for certain board-specific peripherals like the LED, the user button, etc., and helps

determine the specific board version. For the sensor expansion board, it provides the

programming interface for various inertial and environmental sensors and support for

initializing and reading sensor data.