Page 44 - EE Times Europe Magazine | June2020

44 EE|Times EUROPE — Sensors Insert

MEMS Multi-Sensor Kit Targets IoT Developers from Novices to Pros

The ODE includes a function library for artificial intelligence with a
neural network.
The STEVAL-MKSBOX1V1 is equipped with a wide range of low-
power intelligent MEMS sensors from ST. There are also three buttons
and three LEDs, an STM32L4 microcontroller to manage sensor config-
uration and output data, a micro-USB battery-charging interface, and
a BLE module from ST for wireless communication with a BLE-enabled
smartphone.

SensorTile.box lets developers of all skill levels
experiment with designs for IoT applications.

APPLICATION DETAILS
The board is ready to operate immediately. Simply download the free
ST BLE Sensor app on your smartphone (Figure 4) and start operating
your device right away with one of these apps:
• The compass allows you to configure and use the LSM6DSOX accel-
erometer and gyroscope and the LIS2MDL magnetometric sensors
to monitor the tilt sensor data and feedback diagram in real time.
• The step counter lets you configure and use the LSM6DSOX
accelerometer to monitor steps and speed, tracking valuable infor-
mation over time. Figure 5: The STM32Cube toolset (Image: STMicroelectronics)
• The data logger and app allow tracking of vehicles via environmen-
tal and motion sensors in order to record the transport and storage
conditions of selected objects.
• The barometer lets you configure and use the LPS22HH pressure
sensor, HTS221 humidity sensor, and STTS751 temperature sensor
to monitor real-time environmental information on your smart-
phone or to collect and graphically represent data in the time
domain on your screen.
• The vibration tracker allows the LSM6DSOX accelerometer to be
configured and the board to be trained to monitor the operation of
domestic or industrial motorized equipment in the form of vibra-
tion and thus implement abnormal vibration control for predictive
maintenance purposes.
• The baby monitor allows you to configure and use the MP23ABS1
microphone audio sensor to detect the sound of a human voice,
such as a child’s cry. The detection sends a warning to a user’s
smartphone and illuminates an LED diode on the sensor board. Figure 6: Sensor setup (Image: STMicroelectronics)
• The compensated magnetometer lets you create additional apps at
the output of the magnetometer with external magnetic-field noise
compensation. to activate or exclude sensors individually in order to optimize energy
The additional flexibility in professional developer mode enables you consumption. You can also combine data acquired from multiple sen-
sors, use sensor-fusion technology to improve the overall accuracy of
the results, and calibrate the sensors individually after final assembly.

AI AND RAPID DEVELOPMENT
Using the LSM6DSOX Machine Learning Core and AI extensions to
the STM32Cube development ecosystem (Figure 5), professional
developers can deploy neural networks to enable highly sophisti-
cated pattern recognition and classification functions (audio and
motion). Professional users also have the ability to develop powerful
applications quickly and efficiently within the STM32 ODE, using the
STM32CubeMX configurator and code generator and the ST-Link V3
programmer and debugger.
The board will not be sold online but will be offered through ST
Partners to advance ST’s aim of allowing the platform to reach a broad
base of users and meet more needs (Figure 6). Additional releases
beyond SensorTile.box are planned. ■
Maurizio Di Paolo Emilio is a staff correspondent at AspenCore,
Figure 4: The free ST BLE Sensor app (Image: STMicroelectronics) editor of Power Electronics News, and editor-in-chief of EEWeb.

JUNE 2020 | www.eetimes.eu