STEVAL-BLUEMIC-1 Brief Datasheet by STMicroelectronics

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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

Description

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.

Summary table

BlueNRG-1 very low

power Bluetooth low

energy single mode

system-on-chip

embedding a high

performance

BlueNRG-1

STSW-BLUEMIC-1

evaluation software

package

STSW-

BLUEMIC-1

STSW-BLUENRG1-DK

software package

STSW-

BLUENRG1-

MP34DT05-A ultra-

compact, low-power,

omnidirectional, digital

MEMS microphone

MP34DT05-A

LSM6DSL 3-axis

accelerometer and

gyroscope

LSM6DSL

STEVAL-BLUEMIC-1

evaluation board

STEVAL-

BLUEMIC-1

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

certified module

STEVAL-BLUEMIC-1

Data brief

DB3334 - Rev 3 - February 2018

For further information contact your local STMicroelectronics sales office.

www.st.com

J‘M

1Schematic diagrams

Figure 1. Power and SPBTLE-1S module

Battery Charger

BlueNRG-1 Module Footprint

USB, SWD, Battery monitor

Max 200mA

Vout=3V3

R1=147K R2=47K

Vout=1V8

R1=150K R2=120K

Battery monitor

(4.2V -> 1.8V)

VPROG = 1V

IBAT=(VPROG/RPROG)x1000

RPROG=1000*VPROG/IBAT

V_USB

VBlue

VBat

VBlue VBlue

VBlue

V_USB

VBat

VBat VBat

V_USB VBat

I2C_SDA

I2C_SCL

INT1_AG

INT2_AG

PDM_CLK

PDM_DATA

LED1

LED2

BUTTON1

BATT1

Battery Connector

4.7uF

VBAT

4.7uF

R13

20K

47K

R16

R15

GND

USB

USB-MICRO

SH1

SH2

5C7

4.7µF

R14

SW1

PWR

4K7

R11

140K

CHRG

2 1

SWD

U2 LDK120M-R

GND

ADJ 4

OUT 5

R12

105K

U1 STBC08PMR

PROG 5

CHRG

PAD 7

BAT 1

Vcc

GND 4

PWR_ON

4.7µF

100nF

147K

U3 SPBTLE-1S

DIO14/ANATEST0 6

VBLUE

5DIO5/I2C_SDA

4DIO4/I2C_CLK

3ADC IN1

2ADC IN2

DIO6/UART_RTS 9

DIO7/BOOT/UART_CTS 7

DIO8/UART_TXD 10

DIO11/UART_RXD 11

DIO9/TCK/SWTCK 12

DIO10/TMS/SWTDI 13

ANATEST1 14

DIO0/SPI_CLK 15

DIO2/SPI_MOSI 16

DIO1/SPI_CS 18

BT_RESET 19

DIOA12 20

DIO3/SPI_MISO 17

GND 8

SWDIO

RESET

SWDCLK

RESET

SWDIO

ADC_IN2

CHRG

STEVAL-BLUEMIC-1

Schematic diagrams

DB3334 - Rev 3 page 2/5

// 1/

Figure 2. MEMS, button and LEDs

VBlue

PDM_CLK

I2C_SCL

I2C_SDA

INT1_AG

INT2_AG

PDM_DATA

I2C_SCL

I2C_SDA

BUTTON1

LED1

LED2

100K

4K7

M1 MP34DT05-A

DOUT 4

LR 2

GND 5A

VDD

CLK

GND 5B

GND 5D

GND 5C

R10

100

R9 1K

R4 1K

10nF

100nF

4K7

100nF

Button1

LSM6DSL

GND1 6

VDDIO 5

INT1

4SCx

3SDx

2SDO/SA0

VDD 8

INT2 9

OCS_Aux 10

SDO_Aux 11

SCL

13 GND2 7

SDA

100nF

LED2

LED Blue

2 1

LED1

LED Green

2 1

STEVAL-BLUEMIC-1

Schematic diagrams

DB3334 - Rev 3 page 3/5

Revision history

Table 1. Document revision history

Date Version Changes

18-Jul-2017 1 Initial release.

20-Nov-2017 2 Updated cover page features.

06-Feb-2018 3 Added device summary table in cover

page.

Update schematic diagrams.

STEVAL-BLUEMIC-1

DB3334 - Rev 3 page 4/5

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STEVAL-BLUEMIC-1

DB3334 - Rev 3 page 5/5

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STEVAL-BLUEMIC-1