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Ultra-low power Bluetooth® low-power microphone based on SPBTLE-1S certified module

STEVAL-BLUEMIC-1

Overview

The STEVAL-BLUEMIC-1 evaluation board mounts the SPBTLE-1S Bluetooth^® SMART application processor compliant with BT specification v4.2. It supports multiple simultaneous roles and can act as a Bluetooth Smart master and slave device at the same time.

This BLE wireless battery powered solution also embeds digital MEMS microphone MP34DT05-A (or MP34DT04-C1 in the first generation board) and 3D accelerometer + 3D gyroscope, which render this evaluation board suitable for a wide range of advanced smart applications.
The evaluation board comes with a SW development kit that includes the Bluetooth low energy stack, all the drivers for audio and inertial data acquisition, and button and LED management. A ready-to-use BlueVoice library is included as middleware and a sample application is provided to get you started with voice streaming over BLE to an Android or iOS device, running the ST BlueMS apps.

Main features

Bluetooth^® SMART small form factor board based on the SPBTLE-1S module, Bluetooth v4.2 compliant
On-board SPBTLE-1S module, based on BlueNRG-1, Bluetooth low energy application processor system on chip embedding:
- an ultra-low power ARM^® Cortex^®-M0 32-bit core architecture
- programmable embedded 160 KB Flash
- 24 KB embedded RAM with data retention
On-board MP34DT05-A (or MP34DT04-C1 in the first generation board) digital MEMS microphone
On-board LSM6DSL: MEMS 3D accelerometer (±2 / ±4 / ±8 / ±16 g) plus 3D gyroscope (±125 / ±245 / ±500 / ±1000 / ±2000 dps)
Voltage supply: 1V8 or 3V3
Battery or USB powered
100 mAh Li-Ion battery
On-board STBC08 linear Li-Ion battery charger

SWD connector
Included in the development kit package:
- STEVAL-BLUEMIC-1
- Plastic box for housing STEVAL-BLUEMIC-1
- 100 mAh Li-Ion battery
- SWD programming cable
SW development kit for audio and inertial MEMS data streaming over BLE
ST BlueMS: Android and iOS demo App available in the respective stores
CE certified
RoHS and China RoHS compliant
Contains Transmitter Module FCC (ID: S9NSPBTLE1S) certified
Contains Transmitter Module IC (IC: 8976C-SPBTLE1S) certified

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-05-08 12:36:14

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