Motion and Environmental sensor reader application connected via BLE to ST BlueMS iOS/Android application.

Dependencies:   HTS221 LIS3MDL LPS22HB LSM303AGR LSM6DSL

Fork of MOTENV_Mbed by ST Expansion SW Team

This application supports three different sets of ST hardware boards:

  • STEVAL-STLKT01V1 (aka SensorTile)
  • X-NUCLEO-IDB05A1 and X-NUCLEO-IKS01A2 expansion boards
  • B-L475E-IOT01A IoT Discovery board

    and runs over four different target configurations:

  • Nucleo F401RE + X-NUCLEO-IDB05A1 + X-NUCLEO-IKS01A2 (set target NUCLEO_F401RE)
  • DISCO_L475VG_IOT01A (set target DISCO_L475VG_IOT01A)
  • Nucleo L476RG + CRADLE + SENSORTILE (set compile target NUCLEO_L476RG)
  • Nucleo L476RG + CRADLE_EXPANSION_BOARD + SENSORTILE (set compile target NUCLEO_L476RG, remove macro MINI_CRADLE from mbed_app.json)

The first 2 configurations do not require any HW modifications (just use the above indicated targets).

Third configuration (CRADLE ) only requires to remove the two ST-LINK jumpers and JP6 from the Nucleo L476RG board in order to allow flashing the SensorTile through the Nucleo Jtag controller. Once flashed, if the battery is properly plugged and charged, the SensorTile could be mounted in the plastic enclosure being able to run as a small stand alone wearable device. Please note that this configuration do not provide a serial console for printf.

To enable last configuration (CRADLE_EXPANSION_BOARD), follow the steps below:

  • On Nucleo L476RG
    • open the two "ST-LINK" jumpers
    • open the MCU power supply jumper JP6
    • close the solder bridges SB63 and SB62 (to enable the serial console)
  • On SensorTile Arduino Cradle close the solder bridges SB21 and SB10 (to enable the serial console) and move the jumper J2 to the 5V position
  • Plug the Sensor Tile on the Arduino Cradle
  • Plug the Cradle on the Nucleo Arduino connector and connect the debug flat cable between Cradle and Nucleo Jtag connector (the cradle pin1 -identified by a dot- must be connected to the Nucleo pin1 (dot) of SWD CN4 jtag connector)
  • Plug the Nucleo USB cable on PC (a new COM port should appear); no need to plug the micro USB cable on the cradle.
  • Open a PC terminal to see the messages
  • Compile from mbed CLI or on-line compiler removing macro MINI_CRADLE from mbed_app.json file and selecting NUCLEO_ L476RG target
  • Flash the board with the binary

For all configurations on an Android or iOS device download and open the ST BlueMS application and connect to "MotEnvMbedOS" BLE device to see the sensor data.

For all configurations is also possible to add a 9 axis MotionFX sensor fusion library, which is part of the X-CUBE-MEMS package at this link.
The library comes in three flavours, choose your preferred according to the toolchain used (IAR, Keil or GC, Keil version should be used for the online compiler) and copy it in the Middlewares\ST\STM32_MotionFX_Library\Lib directory changing the file extension according to the toolchain used (.a for GCC, .ar for Keil).
In the file mbed_app.json add the macro definition "USE_SENSOR_FUSION_LIB" to the chosen target.
If compiling from CLI and using GCC_ARM toolchain option, in the file \mbed-os\tools\toolchains\ change the compiling option from

        if target.core == "Cortex-M4F":


        if target.core == "Cortex-M4F":

and compile.

Revisions of main.h

Revision Date Message Actions
36:7abc45e9b0a5 2017-10-19 Updated libs File  Diff  Annotate
33:dec779879624 2017-10-17 Added support for DISCO_L475VG_IOT01A, code cleanup File  Diff  Annotate
32:f47005b845b4 2017-10-13 Added support for Nucleo_401RE + IKS01A2 (added HTS221) File  Diff  Annotate
28:a1364ca7b456 2017-10-11 Disabled flash storage File  Diff  Annotate
27:dccb3b0fae57 2017-10-11 Only cumulative BLE characteristics exposed (Environmental, Motion). File  Diff  Annotate
26:1bc571e52ad9 2017-10-10 Specific CLI build for SensorTile+MiniCradle File  Diff  Annotate
20:b97e14ade434 2017-09-20 Updated mbed-os to 5.5 (w SPI3W), updated BLE, updated IKS (now allocating directly sensors), File  Diff  Annotate
13:d00147d01d4e 2016-06-21 updated BLE lib link, defined BLE offsets as #define File  Diff  Annotate
10:d19d8a60d3e5 2016-04-13 Completely removed app lvl BLE congestion control, improved stability, updated libs IDB, API, IKS. File  Diff  Annotate
9:2693f9ef8ff7 2015-12-23 Update BLE API and X-NUCLEO-IDB0XA1 File  Diff  Annotate
8:b042fe719f51 2015-12-21 Reworked ble congestion control File  Diff  Annotate
6:c1b8fb74072e 2015-12-17 I2C@400KHz, BLE app congestion management, license disclaimer File  Diff  Annotate
3:a24a30b28dd7 2015-10-13 Changed BLE dev name to BlueMbed File  Diff  Annotate
1:5fb861c45605 2015-10-13 Default no flash storage of calib data File  Diff  Annotate
0:e93a11b4e044 2015-10-12 dft DS3 not present File  Diff  Annotate