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STMicroelectronics STEVAL-STWINKT1B
- Part No.:
- STEVAL-STWINKT1B
- Manufacturer:
- STMicroelectronics
- Category:
- Sensor Evaluation Boards
- Package:
- Datasheet:
-
STEVAL-STWINKT1B.pdf
- Description:
- STWIN SENSORTILE WIRELESS IND
- Quantity:
- Payment:
- Shipping:
Inventory:103
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Product details
Overview
STEVAL-STWINKT1B from STMicroelectronics is a complete industrial IoT development kit and reference design for condition monitoring and predictive maintenance, integrating an STM32L4R9ZI ultra-low-power Cortex-M4F MCU (120 MHz, 2 MB Flash, 640 KB SRAM), dual MEMS microphones (IMP23ABSU analog + IMP34DT05 digital), six industrial-grade sensors (IIS3DWB vibrometer, ISM330DHCX 6-axis IMU, LPS22HH pressure, STTS751 temperature, IIS2MDC magnetometer), BlueNRG-M2SA Bluetooth® 5.0 module, RS485 transceiver (STR485LV), STSAFE-A110 secure element, and microSD card socket.
For engineers reviewing the STEVAL-STWINKT1B datasheet, STEVAL-STWINKT1B pinout, STEVAL-STWINKT1B application, or STEVAL-STWINKT1B equivalent, this kit delivers validated hardware architecture, production-ready firmware libraries, cloud dashboard integration, and multi-protocol connectivity (BLE, RS485, optional Wi-Fi via STEVAL-STWINWFV1) - all optimized for battery-powered industrial edge sensing with vibration, acoustic, thermal, and environmental data fusion.
Technical Context
The core system board implements a sensor-fusion architecture where high-bandwidth motion data (up to 6 kHz from IIS3DWB, ultrasound-capable IMP23ABSU up to 80 kHz) is acquired via dedicated interfaces: SPI for vibrometers/accelerometers, I²C for environmental sensors, DFSDM for PDM microphone input, and ADC for analog mic conditioning via TS922 op-amp. The STM32L4R9ZI executes real-time signal processing using its DSP instructions, FPU, and embedded machine learning core in the ISM330DHCX.
Connectivity is segregated across independent buses: USART2 for RS485 (STR485LV), dedicated SPI for BlueNRG-M2SA, USB OTG for host communication, and SDIO for microSD logging. Power management uses STBC02 linear charger, ST1PS01EJR buck converter, and LDK130 low-noise LDO to support <10 µA shutdown current and dynamic voltage scaling across sensor, MCU, and radio subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core MCU | STM32L4R9ZIJ6: Arm Cortex-M4F @120 MHz, 2 MB Flash, 640 KB SRAM, integrated DFSDM, 12-bit ADC (5 Msps), FPU, MPU |
| Vibration Sensing | IIS3DWB: 3-axis digital accelerometer, 6 kHz flat bandwidth, ±2/±4/±8 g ranges, FIFO + interrupts for autonomous edge analytics |
| Acoustic Sensing | IMP23ABSU analog mic (–38 dBV ±1 dB, SNR 64 dB, 80 kHz BW) + TS922 op-amp; IMP34DT05 digital mic (–26 dBFS ±3 dB, PDM output) |
| Environmental Sensing | LPS22HH pressure (260–1260 hPa, ±0.5 hPa abs), STTS751 temp (9–12-bit resolution, 0.0625°C LSB), HTS221 (not recommended for new designs) |
| Wireless Interface | BlueNRG-M2SA: Bluetooth® 5.0 certified module, supports concurrent master/slave roles, integrated antenna, 1.7–3.6 V operation |
| Wired Interface | STR485LV: RS485 transceiver, 20 Mbps fast mode / 250 kbps slow mode, thermal shutdown, fail-safe receiver |
| Security & Storage | STSAFE-A110 secure element (authentication, key storage); microSD socket with 4-bit SDIO interface for high-speed logging |
Availability
STEVAL-STWINKT1B is available at Aetrix Electronics and suitable for industrial condition monitoring, predictive maintenance systems, wireless sensor network prototyping, and IIoT edge node validation requiring stable component supply, pre-integrated firmware, and production-aligned hardware architecture.
Supply support for STEVAL-STWINKT1B includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, sensors, power ICs, and secure elements for automotive, industrial, and IoT applications.
The STWIN platform was developed specifically to accelerate end-to-end industrial IoT solutions - combining ultra-low-power processing, multi-modal sensing (vibration, audio, pressure, temperature, magnetic), secure identity, and flexible wired/wireless connectivity in a single validated reference design.
FAQ
Does STEVAL-STWINKT1B include Wi-Fi connectivity out of the box?
No. Wi-Fi is not integrated on the core board. It is supported via the optional STEVAL-STWINWFV1 expansion board (sold separately), which plugs into the CN3 connector and uses the ISM43362-M3G-L44-E module with 802.11 b/g/n, SPI host interface, and embedded TCP/IP stack.
What is the role of the STSAFE-A110 on this board?
The STSAFE-A110 provides hardware-rooted security for device authentication, secure boot, and cryptographic key storage. It enables trusted firmware updates, prevents cloning, and secures sensor data transmission - critical for industrial deployments where device identity and data integrity are mandated.
Can the IMP23ABSU microphone capture ultrasound signals for bearing fault detection?
Yes. The IMP23ABSU has an extended frequency response up to 80 kHz, verified sensitivity of –38 dBV ±1 dB at 94 dBSPL/1 kHz, and 64 dB SNR - making it suitable for ultrasonic condition monitoring of rotating machinery, including early-stage bearing defect detection beyond audible range.
How is power managed when both USB and battery are connected?
The STBC02 linear battery charger automatically prioritizes external power (USB or J5) to run the system while simultaneously charging the 480 mAh Li-Po battery. When only the battery is present, the system operates down to 2.2 V with dynamic voltage scaling; thermal derating applies above 35°C ambient without external cooling.
STEVAL-STWINKT1B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Sensor Type:
- Accelerometer, Gyroscope, Humidity, Magnetometer, Pressure, Temperature
- Sensing Range:
- -
- Interface:
- RF
- Sensitivity:
- -
- Voltage - Supply:
- -
- Embedded:
- Yes, MCU, 32-Bit
- Contents:
- Board(s), Accessories
- Utilized IC / Part:
- IIS3DWB, ISM330DHCX, IIS2DH, IMP34DT05, LPS22HH, MP23ABS1, STM32L4R9, STWIN
STEVAL-STWINKT1B FAQ
1.How can I place an order for STEVAL-STWINKT1B through Aetrix?
Please submit a Request for Quotation (RFQ) for STEVAL-STWINKT1B on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STEVAL-STWINKT1B reliable?
The price and inventory of STEVAL-STWINKT1B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STEVAL-STWINKT1B is usually 5 days.
3.What payment methods are accepted for STEVAL-STWINKT1B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STEVAL-STWINKT1B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STEVAL-STWINKT1B?
STEVAL-STWINKT1B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STEVAL-STWINKT1B order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STEVAL-STWINKT1B?
For technical support, including STEVAL-STWINKT1B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STEVAL-STWINKT1B requirements.
6.How does Aetrix verify that STEVAL-STWINKT1B is sourced from the original manufacturer or authorized distributors?
All STEVAL-STWINKT1B products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STEVAL-STWINKT1B meets industry standards.
7.What is the process for return or replacement of STEVAL-STWINKT1B?
All STEVAL-STWINKT1B units undergo pre-shipment inspection (PSI). If there is an issue with STEVAL-STWINKT1B, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STEVAL-STWINKT1B part is unused and in its original packaging.
Return procedure for STEVAL-STWINKT1B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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