ST STEVAL-BLUEPIRV1 Manuel utilisateur

Introduction

The STEVAL-BLUEPIRV1 evaluation board is an application example design of a wireless motion detector based

on a passive infrared (PIR) sensor and featuring Bluetooth® Low Energy wireless connectivity.

The passive infrared sensors are the most used sensors for motion detection, thanks to their low-power

consumption and price.

The STEVAL-BLUEPIRV1 evaluation board uses IRA-S210ST01 by Murata. The detection range of the IML-0688

Fresnel lens is up to 5 m.

The on-board low-power TSU102 CMOS op-amp and TS883 comparator perform the analog signal conditioning

with a power consumption in a sub-µA range.

The embedded BlueNRG-M2SA FCC and IC certified radio module (FCC ID: S9N-BNRGM2S and IC: 8976C-

BNRGM2SA), which integrates an application microcontroller based on an Arm®Cortex®-M0 core, features the

Bluetooth® Low Energy connectivity.

The whole design has been built by focusing on low-power consumption. Even though powered via a CR2032

coin-cell battery, the board expected lifetime is around a year.

Figure 1. STEVAL-BLUEPIRV1 evaluation board

How to use the STEVAL-BLUEPIRV1 evaluation board for Bluetooth® Low

Energy wireless motion detector based on a PIR sensor

UM3001

User manual

UM3001 - Rev 1 - April 2022

For further information contact your local STMicroelectronics sales office. www.st.com

1Overview

The STEVAL-BLUEPIRV1 evaluation board comes ready-to-use and working out-of-the-box. It provides all the

functionality expected from a wireless motion detector.

Some LEDs show the Bluetooth® Low Energy status and motion detection. Then, using the STBLESensor app,

you can visualize the battery status and signal strength as well as the motion indication.

The Bluetooth® Low Energy module is separable to allow the designer to use the analog part only.

The supply and output reading are available on a separate header and all the analog signals are placed on a

testing point.

The STEVAL-BLUEPIRV1 features:

•BlueNRG-M2SA module for Bluetooth® Low Energy communication

• Connectivity with the STBLESensor app

• Analog signal conditioning based on the TSU102 operational amplifier

• Window comparator based on the TS883 open-drain comparator

• Power management based on the STLQ020 ultra-low quiescent LDO

• Powered by a single CR2032 coin cell battery

Figure 2. STEVAL-BLUEPIRV1 block diagram

BlueNRG-M2

Cortex

M0 MCU

PCF chip

antenna

Analog signal

conditionig

PIR sensing

element

IRA-S210ST01

CR2032 Battery

Figure 3. STEVAL-BLUEPIRV1 overview (top side)

1. BlueNRG-M2SA module

2. Power management (STLQ020)

3. PIR sensor

4. Signal conditioning (TSU102)

5. Signal conditioning (TS883)

6. Motion LED

7. Bluetooth® Low Energy status LED

8. SWD connector

876

UM3001

Overview

UM3001 - Rev 1 page 2/17

2Getting started

To use the STEVAL-BLUEPIRV1, you just need to insert the battery and download the STBLESensor app on your

smartphone.

2.1 Battery

The STEVAL-BLUEPIRV1 is powered through a CR2032 coin cell battery.

Insert the battery into the holder placed at the board bottom.

Important: Use CR2032 lithium 3 V batteries only. Insert the battery with the positive (+) terminal facing out.

Caution: Risk of fire or explosion if the battery is replaced by an incorrect type or if the battery polarity is inverted. Use

only IEC 62133 certified CR2032 batteries.

Figure 4. STEVAL-BLUEPIRV1 battery insertion

2.2 Indication LEDs

There are two indication LEDs available on the board. The orange LED indicates the movement whereas the blue

LED indicates the connection over Bluetooth® Low Energy.

The orange LED lights up right after the battery is inserted. It takes around 10 seconds to stabilize the analog

circuitry and perform the proper movement indication. The orange LED is switched off shortly after the movement

stops.

The blue LED periodically blinks only when the Bluetooth® Low Energy connection is set up.

UM3001

Getting started

UM3001 - Rev 1 page 3/17

2.3 STBLESensor application

The STBLESensor application shows the data exported by a Bluetooth® Low Energy device using the BlueST

protocol.

The app shows various panels with the application data. It is available at Google Play and App Store.

Figure 5. STBLESensor app QR codes

When the device scanning is performed with the STEVAL-BLUEPIRV1 active in the smartphone range, the board

should appear in the list as BluePIR.

Figure 6. Device list

By clicking on BluePIR, the smartphone connects to the STEVAL-BLUEPIRV1. The user interface with board

information then appears.

There are two panels available when successfully connected to STEVAL-BLUEPIRV1.

UM3001

STBLESensor application

UM3001 - Rev 1 page 4/17

The first panel with the LED indicates the movement. There is a small delay before the LED switches off to

prevent flickering.

Figure 7. LED switch panel

The other panel shows the Bluetooth® Low Energy Mac address, the signal strength, and the battery voltage with

the rough state of charge information.

Figure 8. Battery status panel

UM3001

STBLESensor application

UM3001 - Rev 1 page 5/17

3Firmware

The evaluation board comes flashed with a firmware based on the STSW-BLUENRG1-DK. This software package

contains several project examples, such as the BLE_SensorDemo_BlueMSapp with few modifications:

• low-power mode selected to achieve sub µA power consumption when idle

• Bluetooth® Low Energy messages modified to show only the LED panel in the STBLEsensor app

• ADC to measure the battery voltage

You can modify the firmware according to your needs. Then, load it into the BlueNRG-M2SA module via the SWD

available on the board and use the STSW-BNRG1STLINK software package.

Note: The Bluetooth® Low Energy module is used in low-power mode and the SWD peripheral is disabled. The

STSW-BNRG1STLINK is able to connect only after the device reset.

UM3001

Firmware

UM3001 - Rev 1 page 6/17

4Schematic diagrams

Figure 9. STEVAL-BLUEPIRV1 circuit schematic

1M2 C4

10n

V+

V-

U1A

TSU102IST

U1B

TSU102IST

V+

V-

U2A

TS883IST

U2B

TS883IST

1N4148

10u

47k

22k

22u

22k

1M2

10n

680k

390k

R10

680k

GND

2V5

DRAIN

SRC

GND

GND GND GND GND

2V5

GND

2V5

GND

2V5

GND

R11

680k

2V5

DRAIN 1

SRC 2

GND 3

PIR sensor

22n

GNDGND

2V52V5

ADC2 1

ADC1 2

DIO4

DIO5

VIN 5

ANATEST0 / DIO14 6

DIO7 / BOOT

GND 8

DIO6

DIO8

DIO11

DIO9

DIO10

13 ANATEST1 14

DIO0

DIO2

DIO3

DIO1

/RESET 19

DIO12

GND 21

NC 22

NC 23

BLUENRG-M2SA

1 2

3 4

5 6

7 8

9 10

CN3

Header 2x5

CN1

CR2032 Holder

VCC

GND

VCC

OUTOUT

OUT

LED2

R13

R12

GND

SWD_CLK

SWD_IO

CN2

Header 3

UART_TXD

UART_RXD

VCC

GND

SWD_IO

SWD_CLK

UART_TXD

UART_RXD

RESETn

CN4

Header 5

VCC

SWD_CLK

GND

SWD_IO

RESETn

C13

10u

VCC

GND

C11

10n

R15

47k

VCC

GND

RESETn

R16

C12

10u

2V5

GND

C10

100n

GND

LED1

VCC

C14

GND GND GND

R17

2M2

R18

C15

GND

2V5

VCC

1000R Vout 1

ADJ/NC 2

GND 3

VIN

U5 STLQ020PUR

TP1

TP2

TP3

IML-0688

Fresnel

lens

UM3001 - Rev 1 page 7/17

UM3001

Schematic diagrams

5Bill of materials

Table 1. STEVAL-BLUEPIRV1 bill of materials

Item Q.ty Ref. Value Description Manufacturer Order code

1 1 CN2 N.A. Header 3, HDR1X3

Header, 3-Pin,

2.54 mm (not

assembled)

- -

2 1 CN4 N.A. Header 5, HDR1X5

Header, 5-Pin,

2.54 mm (not

assembled)

- -

3 1 U1 TSU102IST,

MiniSO-8

Nanopower

(580 nA) rail-

to-rail I/O 5 V

CMOS op-

amp

ST TSU102IST

4 1 U2 TS883IST,

MiniSO-8

Rail-to-rail 0.9

V nanopower,

open drain

dual

comparators

ST TS883IST

5 1 U5 STLQ020PUR,

DFN6 2x2

200 mA ultra-

low quiescent

current LDO

ST STLQ020PUR

6 1 CN3 N.A.

Header 2x5,

Header 2x5 1.27

SMD

Header 2x5

1.27 SMD Harwin M50-3600542R

7 1 U3 PIR sensor IRA-

S210ST01 Murata IRA-S210ST01

8 4 C4, C6, C7,

C11

10n, 0603_C, 50 V,

5 % 5%, 50V, C0G Murata GRM1885C1H103JA01

9 1 C2 1n, 0603_C, 50 V,

5 % 5%, 50V, C0G Murata GRM1885C1H102JA01

10 2 C8, C9 22n, 0603_C, 50 V,

10 %

10%, 50V,

X7R Murata GRM188R72A223KAC4

11 1 C10 100n, 0603_C, 50

V, 10 %,

10%, 50V,

X7R Murata GRM188R72A104KA35

12 3 C1, C12, C13 10u, 0603_C, 10 V,

20 %

10V, X5R,

20% Murata GRM188R60J106ME47

13 2 C14, C15 1u, 0603_C, 10 V,

20 %

10V, X5R,

20% Murata GRM188R60J105MA36

14 2 C3, C5 22u, 0603_C, 10 V,

20 %

10V, X5R,

20% Murata GRM188C80J226ME15

15 1 R16 0R, 0805_R, 50 V,

1 %

1%, 50V,

100mW,

+-100ppm/K

Vishay / Dale CRCW08050000Z0EA

16 3 R7, R10, R11 680k, 0603_R, 50

V, 1 %

1%, 50V,

100mW,

+-100ppm/K

Vishay / Dale CRCW0603680KFKEA

17 2 R8, R9 390k, 0603_R, 50

V, 1 %,

1%, 50V,

100mW,

+-100ppm/K

Vishay / Dale CRCW0603390KFKEA

18 2 R2, R15 47k, 0603_R, 50 V,

1 %

1%, 50V,

100mW,

+-100ppm/K

Vishay / Dale CRCW060347K0FKEA

UM3001

Bill of materials

UM3001 - Rev 1 page 8/17

Item Q.ty Ref. Value Description Manufacturer Order code

19 2 R3, R5 22k, 0603_R, 50 V,

1 %

1%, 50V,

100mW,

+-100ppm/K

Vishay / Dale CRCW060322K0FKEA

20 1 R13 1k, 0805_R, 50 V,

1 %

1%, 50V,

100mW,

+-100ppm/K

Vishay / Dale CRCW08051K00FKEA

21 1 R17 2M2, 0603_R, 50

V, 1 %

1%, 50V,

100mW,

+-100ppm/K

Vishay / Dale CRCW06032M20FKEA

22 1 R1 1R, 0603_R, 50 V,

1 %

1%, 50V,

100mW,

+-100ppm/K

Vishay / Dale CRCW06031R00FKEA

23 2 R4, R6 1M2, 0603_R, 50

V, 1 %

1%, 50V,

100mW,

+-100ppm/K

Vishay / Dale CRCW06031M20FKEA

24 1 R18 1M, 0603_R, 50 V,

1 %

1%, 50V,

100mW,

+-100ppm/K

Vishay / Dale CRCW06031M00FKEA

25 1 R12 1k, 0603_R, 50 V,

1 %

1%, 50V,

100mW,

+-100ppm/K

Vishay / Dale CRCW06031K00FKEA

26 1 U4

BLUENRG-MS2A,

BLUENRG-2

MODULE QFN,

CHIP ANT

BLUENRG-2

module ST BLUENRG-M2SA

27 1 L1 1000R, 0603_R, 1

A, 25 % Ferrite bead Murata BLM18KG102SZ1D

28 1 CN1 CR2032 holder

Battery

CR2032

holder

Linx BAT-HLD-001

29 1 LED1

LED_ORANGE,

0805_LED, 1.85 V,

2m A

LED Orange Kingbright APTD2012LSYCK

30 1 LED2

LED_BLUE,

0805_LED, 2.65 V,

2m A

LED Blue low

Vf Kingbright APTD2012LQBC/D

31 1 D1 1N4148, SOD-323,

75 V, 150m A 1N4148WS Diodes Inc 1N4148WS-7-F

32 1 M1

IML-0688, Plastic

lens R10.2 x 8.5

Fresnel lens Murata IML-0688

UM3001

Bill of materials

UM3001 - Rev 1 page 9/17

6Board versions

Table 2. STEVAL-BLUEPIRV1 versions

PCB version Schematic diagrams Bill of materials

STEVAL$BLUEPIRV1A (1) STEVAL$BLUEPIRV1A schematic diagrams STEVAL$BLUEPIRV1A bill of materials

1. This code identifies the STEVAL-BLUEPIRV1 evaluation board first version. It is printed on the board PCB.

UM3001

Board versions

UM3001 - Rev 1 page 10/17

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