STEVAL-PROTEUS1 is a solution designed for temperature and vibration monitoring. It is based on a 2.4 GHz multi-dispatch wireless integrated chip for processing machine or facility status in industrial applications.

This solution simplifies the prototyping, evaluation and development of wireless industrial sensor nodes for predictive maintenance. It is a lithium polymer battery and plastic housing.

The host board includes the STM32WB5MMG ultra-low power and small size radio module. The module has been certified by FCC and IC (FCC ID: YCP-STM32WB5M001 and IC: 8976A-STM32WB5M01). It is based on the STM32WB55VGY wireless SoC and complies with Bluetooth ® Low Energy SIG specifications v5.2, ZigBee 3.0 and IEEE 802.15.4-2011.

The powerful Arm®-based Cortex-M4 with FPU and large memory banks allows running embedded algorithms at the node level.

Multi-protocol support ensures the use of unique hardware for developing applications with different types of connectivity. In addition, the host board integrates the STSAFE-A110 security element, providing authentication and secure data management services for local or remote hosts.

The IIS3DWB high-bandwidth (up to 6 kHz) accelerometer, IIS2DLPC ultra-low power consumption and ISM330DHCX inertial module (accelerometer and gyroscope) with MLC make this hardware ideal for custom vibration monitoring developments.

The STTS22H leading temperature sensor has been integrated in the board, away from thermal noise sources (power management and microcontroller) to provide more accurate temperature measurements. Its exposed pad sensor feature allows the temperature sensor to be in contact with the surface target device.

Onboard external memory is connected to the STM32WB5MMG module via QSPI for data buffering and event storage.

The STEVAL-PROTEUS is powered by a LiPo rechargeable battery. It can also be powered via USB (5 V, 500 mA).

Power management uses the ST1PS02 400 mA step-down converter for low-power applications and the STBC02 battery charger.

A fixed set of application examples with dedicated algorithms are preloaded in the STM32WB5MMG flash memory, thus wireless vibration and temperature node monitoring.

Related software tools are:

STSW-PROTEUS:

Software package of STEVAL-PROTEUS1 kit with signal processing functions for predictive maintenance in WPAN

FP-AI-PDMWBSOC:

STM32STEVAL-PROTEUS1 Cube function package for AI-based anomaly detection and classification

STBLE sensor

BLE sensor application for Android and iOS

▶Scenario application diagram

▶Product entity diagram

▶Demonstration board photo

▶Solution block diagram

▶Function table

Core technology advantages

• All components are specially mounted on the top of the PCB to ensure easy installation on other devices

• The included comprehensive software and firmware library with time domain and frequency domain vibration analysis functions simplify your software customization and can reliably outline your time to market

• Good receiver independence and high output power signal provide instantaneous RF performance. Its low power consumption characteristics can extend battery consumption.

• STM32WB5MMG does not require RF expertise, speeding up development and reducing associated costs

• Temperature monitoring and vibration inhabitation of data in time and frequency domains, machine learning and artificial intelligence

• STBLESensor app supports Android and iOS to simplify board and processing configuration

Solution Specifications

• STEVAL-PROTEUS motherboard

• Li-polymer battery 3.7 V, 480 mAh

• Plastic housing and screws

• STM32WB5MMG - Ultra-low power module, dual-core 32-bit Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32 MHz for real-time radio layer, 1 MB Flash memory with 256k bytes of SRAM and 2.4GHz RF, supports Bluetooth® 5 low energy, 802.15.4, Zigbee 3.0 and Thread

• IIS3DWB - Up to 6 kHz ultra-wide bandwidth, low noise, 3-axis digital accelerometer

• ISM330DHCX - iNEMO inertial module with machine learning core and finite state machine with digital outputs

• IIS2DLPC - High performance ultra-low power 3-axis digital accelerometer

• STTS22H - Low voltage, ultra-low power, 0.5°C accurate I²C/SMBus 3.0 temperature sensor

• 2Gb QSPI NOR flash memory for data storage

• STSAFE-A110 - Secure Element

• STBC02 - Li-Ion linear battery charger with LDO

• ST1PS02 - Buck converter with digital voltage selection

• Three push buttons (one reset, one user, one power-on battery)

• 4 LEDs (3 user LEDs, 1 STBC02 LED status)

• Flexible power supply options - Li-Ion, USB power, and primary battery

• SWD connector for debug and programming capabilities

• 34-pin expansion connector compliant with STMOD+ standard

• Ruggedized package for use with demonstrations of industrial sensor nodes based on Bluetooth® Low Energy or Zigbee for predictive maintenance applications in WPANs

• STM32 Wireless Personal Area Network middleware developed within the STM32WB framework to support Bluetooth® Low Energy 5 or Zigbee 3.0 applications

• Motion signal processing middleware for vibration analysis in time domain (velocity RMS and acceleration peak) and frequency domain (FFT with global magnitude, averaging, overlap and window)

• Configurable alarm and warning thresholds

• Bluetooth® Low Energy application compatible with STBLESensor mobile app for Android and iOS to display data on the application and bridge data to Azure IoT central PnP cloud dashboard

• Zigbee mesh network example pinned with end devices and routers connected to the coordinator to display collected data on PC serial terminal