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STMicroelectronics STEVAL-BLUEMIC-1
- Part No.:
- STEVAL-BLUEMIC-1
- Manufacturer:
- STMicroelectronics
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
STEVAL-BLUEMIC-1.pdf
- Description:
- STEVAL-BLUEMIC-1
- Quantity:
- Payment:
- Shipping:
Inventory:2,475
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Product details
Overview
STEVAL-BLUEMIC-1 from STMicroelectronics is a Bluetooth® Smart v4.2 evaluation board built around the SPBTLE-1S module (based on BlueNRG-1 SoC), integrating a digital MEMS microphone (MP34DT05-A), 3-axis accelerometer + gyroscope (LSM6DSL), 100 mAh Li-ion battery, and STBC08 linear charger. It supports simultaneous master/slave BLE roles and enables voice and inertial data streaming.
For engineers reviewing the STEVAL-BLUEMIC-1 datasheet, STEVAL-BLUEMIC-1 pinout, STEVAL-BLUEMIC-1 application, or STEVAL-BLUEMIC-1 equivalent, key selection considerations include dual-role BLE connectivity, integrated PDM microphone interface, I²C/SPI sensor fusion capability, low-power operation down to 1.8 V, and SWD debug support for rapid firmware development.
Technical Context
The board implements a complete wireless audio and motion sensing reference design: the BlueNRG-1 SoC runs the BLE stack and application firmware, while the MP34DT05-A provides PDM-format audio capture and the LSM6DSL delivers synchronized 6DoF inertial data via I²C. All peripherals are pre-wired and powered from a single 1.8 V or 3.3 V rail.
Hardware abstraction is enabled by ST's STSW-BLUEMIC-1 software package, which includes BlueVoice middleware for real-time voice streaming, sensor drivers, LED/button control, and a sample application compatible with ST's BlueMS Android/iOS app - eliminating low-level BLE protocol handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| BLE Standard | Bluetooth v4.2 compliant, single-mode Low Energy only - ensures interoperability with smartphones and embedded hosts without Classic BR/EDR overhead. |
| Core Processor | ARM Cortex-M0 @ 16 MHz - sufficient for concurrent BLE stack execution, PDM audio processing, and sensor fusion logic in resource-constrained edge nodes. |
| On-board Memory | 160 KB Flash / 24 KB RAM with retention - supports full BLE stack plus custom audio/sensor application code with runtime data buffering. |
| Audio Interface | PDM input from MP34DT05-A - eliminates need for external ADC; direct digital microphone connection reduces analog noise and BOM count. |
| Inertial Sensor | LSM6DSL (±16 g / ±2000 dps full scale) - enables high-dynamic-range motion capture for gesture recognition, activity monitoring, and orientation tracking. |
| Power Options | USB or 100 mAh Li-ion battery with STBC08 charger - allows portable, untethered operation and seamless transition between lab testing and field deployment. |
Availability
STEVAL-BLUEMIC-1 is available at Aetrix Electronics and suitable for Bluetooth audio prototyping, wearable motion-sensing validation, and industrial condition monitoring requiring stable component supply and certified RF modules.
Supply support for STEVAL-BLUEMIC-1 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, designing and manufacturing microcontrollers, sensors, power ICs, and wireless solutions for industrial, automotive, and consumer applications.
The STEVAL-BLUEMIC-1 belongs to ST's STM32 & BlueNRG evaluation platform family, engineered to accelerate development of ultra-low-power Bluetooth-enabled voice and motion sensing endpoints - not general-purpose dev boards, but purpose-built reference systems for audio+IMU edge applications.
FAQ
What is the primary function of the STEVAL-BLUEMIC-1?
The STEVAL-BLUEMIC-1 is an evaluation board designed to demonstrate and develop Bluetooth Low Energy voice streaming and inertial sensor fusion applications. It integrates the SPBTLE-1S module (BlueNRG-1 SoC), MP34DT05-A digital microphone, and LSM6DSL 6DoF IMU - enabling end-to-end audio capture, motion sensing, and wireless transmission to mobile devices via ST's BlueMS app.
Does the board support both master and slave BLE roles simultaneously?
Yes. The BlueNRG-1 SoC on the SPBTLE-1S module natively supports concurrent master and slave roles per Bluetooth v4.2 specification. This allows the board to act as a peripheral (e.g., microphone sensor) while also scanning and connecting to other BLE devices - essential for mesh-aware or gateway-like use cases.
Can the onboard microphone be replaced with another PDM device?
Yes - the MP34DT05-A connects via dedicated PDM_CLK and PDM_DATA lines routed to DIO14 and DIO3 of the SPBTLE-1S. These pins are configurable as GPIO or PDM interface, allowing substitution with compatible PDM microphones (e.g., MP34DT01TR, IMP23ABSUTR) provided clock/data timing and voltage levels match the BlueNRG-1's PDM controller requirements.
Is the STSW-BLUEMIC-1 software package required to use the board?
No, but it is strongly recommended. STSW-BLUEMIC-1 provides the BLE stack, BlueVoice middleware, sensor drivers, and a working voice-streaming example. Without it, users must implement their own BLE GATT services, PDM audio pipeline, and LSM6DSL register configuration - significantly increasing development time and complexity for production-ready functionality.
STEVAL-BLUEMIC-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Transceiver; Bluetooth® Smart 4.x Low Energy (BLE)
- Frequency:
- 2.4GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- BlueNRG-1
STEVAL-BLUEMIC-1 FAQ
1.How can I place an order for STEVAL-BLUEMIC-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for STEVAL-BLUEMIC-1 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-BLUEMIC-1 reliable?
The price and inventory of STEVAL-BLUEMIC-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STEVAL-BLUEMIC-1 is usually 5 days.
3.What payment methods are accepted for STEVAL-BLUEMIC-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STEVAL-BLUEMIC-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STEVAL-BLUEMIC-1?
STEVAL-BLUEMIC-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STEVAL-BLUEMIC-1 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-BLUEMIC-1?
For technical support, including STEVAL-BLUEMIC-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STEVAL-BLUEMIC-1 requirements.
6.How does Aetrix verify that STEVAL-BLUEMIC-1 is sourced from the original manufacturer or authorized distributors?
All STEVAL-BLUEMIC-1 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-BLUEMIC-1 meets industry standards.
7.What is the process for return or replacement of STEVAL-BLUEMIC-1?
All STEVAL-BLUEMIC-1 units undergo pre-shipment inspection (PSI). If there is an issue with STEVAL-BLUEMIC-1, 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-BLUEMIC-1 part is unused and in its original packaging.
Return procedure for STEVAL-BLUEMIC-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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