ST X-NUCLEO-IKS01A1 Manual de usuario

November 2014 DocID026959 Rev 1 1/14

UM1820

User manual

MEMS inertial and environmental sensor expansion board for

STM32 Nucleo

Introduction

The X-NUCLEO-IKS01A1 is a MEMS inertial and environmental sensor evaluation board

which can be used to expand the STM32 Nucleo system. It is also compatible with the

Arduino UNO R3 connector layout and is designed around the STMicroelectronics 3-axis

accelerometer plus 3-axis gyroscope (LSM6DS0), 3-axis magnetometer (LIS3MDL),

humidity (HTS221) and pressure (LPS25H) sensors. The X-NUCLEO-IKS01A1 interfaces

with the STM32 MCU via the I

C pin, and the user can change the default I

C port.

This document details the hardware requirements and board connections for the X-

NUCLEO-IKS01A1 MEMS and environmental sensor expansion board for STM32 Nucleo.

Figure 1. X-NUCLEO-IKS01A1 evaluation board

www.st.com

Contents UM1820

2/14 DocID026959 Rev 1

Contents

1 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1 Hardware requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.1 Board block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.2 Sensor I²C address selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.3 Sensor current consumption measurement . . . . . . . . . . . . . . . . . . . . . . . . 6

3.4 Sensor disconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.5 DIP24 socket for adapter boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.6 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4 Board schematic and bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.1 Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.2 Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

5 Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

DocID026959 Rev 1 3/14

UM1820 Getting started

1 Getting started

This section describes the hardware requirements for the X-NUCLEO-IKS01A1 evaluation

board.

1.1 Hardware requirements

The X-NUCLEO-IKS01A1 is an expansion board for use with STM32 Nucleo boards (please

refer to UM1724 on www.st.com for further information). To function correctly, the STM32

Nucleo board must be connected to the X-NUCLEO-IKS01A1 board, as shown in Figure 2.

Figure 2. X-NUCLEO-IKS01A1 mounted on a STM32 Nucleo board

The connection between the STM32 Nucleo and the X-NUCLEO-IKS01A1 is designed for

use with any STM32 Nucleo board or Arduino UNO R3 platform.

When mounting the X-NUCLEO-IKS01A1 on the mainboard:

ensure that all the pins are aligned with their corresponding connector

It is very important to handle both boards carefully during this operation to avoid damaging

or bending the male/female pins and connectors.

ESD prevention measures must also be implemented to avoid damaging any X-NUCLEO-

IKS01A1 board components.

System requirements UM1820

4/14 DocID026959 Rev 1

2 System requirements

Using the Nucleo boards with the X-NUCLEO-IKS01A1 expansion board requires the

following software and hardware:

•a Windows

(XP, Vista, 7, 8) PC on which to install the software

•a USB type A to Mini-B USB cable to connect the Nucleo to the PC for installation of

the board firmware package (order code: X-CUBE-IKS01A1). A utility running on the

user's PC will complete the demo. The user’s PC must have the following

characteristics:

– At least 128 MB of RAM

– 40 MB of available hard disk space for the X-CUBE-IKS01A1 firmware package

and relative documentation, available on www.st.com

DocID026959 Rev 1 5/14

UM1820 Hardware description

3 Hardware description

The board allows the user to test the functions of the STMicroelectronics motion MEMS

accelerometer, gyroscope, magnetometer and environmental sensors for humidity,

temperature and pressure.

The devices used on the board are:

– LSM6DS0: MEMS 3D accelerometer (±2/4/8g) + 3D gyroscope

(±245/500/2000dps)

– LIS3MDL: MEMS 3D magnetometer (±4/8/12/16 gauss)

– LPS25H: MEMS pressure sensor, 260-1260 hPa absolute digital output barometer

– HTS221: Capacitive digital relative humidity and temperature sensor

The X-NUCLEO-IKS01A1 also has a DIL24 socket to connect and test additional sensors

(i.e. UVI sensors, other MEMS sensor, etc…).

The sensors are connected on a single bus via I

C and each device has a separate power

supply to allow measurement of the power consumption of each single sensor.

3.1 Board block diagram

Figure 3 shows a block diagram of the X-NUCLEO-IKS01A1 board.

Figure 3. X-NUCLEO-IKS01A1 block diagram

3.2 Sensor I²C address selection

Most of the sensors allow selection of the LSB of the I

C address by pulling the SD0 pin low

or high. The board has solder bridges to control the SD0 level.

Hardware description UM1820

6/14 DocID026959 Rev 1

3.3 Sensor current consumption measurement

To measure the individual current consumption of each sensor, connect the ammeter at the

appropriate jumper points. Use an ammeter with a low burden voltage and set it to a suitable

range as the sensor current consumption is typically very low.

3.4 Sensor disconnection

To disconnect a sensor, disconnect the I²C bus as well as the power supply. Table 3 will help

you identify the appropriate jumpers and solder bridges.

3.5 DIP24 socket for adapter boards

Sensors can be added via adapter boards connected to the DIL24 socket J1. Please visit

www.st.com to find other sensors that are available.

As there are various interrupt signal assignments to DIL24 pins, the appropriate pin can be

selected using the JP6 header.

Table 1. Solder bridges for SD0 level control

Sensor SD0 High SD0 Low

LIS3MDL (U1) SB3 (default) SB4

LSM6DS0 (U2) SB7 (default) SB8

LPS25H (U4) SB13 (default) SB14

DIL24 Adapter (J1) SB15/SB17 SB16/SB18 (default)

Table 2. Jumpers for current consumption measurement

Sensor Jumper

LIS3MDL (U1) JP1

LSM6DS0 (U2) JP2

HTS221 (U3) JP3

LPS25H (U4) JP4

DIL24 Adapter (J1) JP5

Table 3. Link between sensors, jumpers and I²C solder bridges

Sensor Power SDA SCL

LIS3MDL (U1) JP1 SB2 SB1

LSM6DS0 (U2) JP2 SB6 SB5

HTS221 (U3) JP3 SB9 SB10

LPS25H (U4) JP4 SB12 SB11

DocID026959 Rev 1 7/14

UM1820 Hardware description

3.6 Connectors

The pin assignments for the Arduino UNO R3 and the Morpho connectors are shown in

Table 4 and Table 5 respectively.

Table 4. Arduino UNO R3 connector table

Connector Pin

(1)

1. Any unlisted pins are not connected.

Signal Remarks

CN5

7GND

-9I

C SDA

10 I

C SCL

CN6

23.3V

43.3V

6GND

7GND

CN8

3 INT1 (DIL24)

4 INT2 (DIL24)

5 LIS3MDL INT1

6 LIS3MDL DRDY

CN9

3 USER INT (optional)

5 LSM6DS0 INT1

6 LPS25H INT1

7 HTS221 DRDY

Hardware description UM1820

8/14 DocID026959 Rev 1

Table 5. ST Morpho connector table

Connector Pin

(1)

1. Any unlisted pins are not connected.

Signal Remarks

CN7

12 3.3V

16 3.3V

20 GND

22 GND

32 INT1 (DIL24)

34 INT2 (DIL24)

36 LIS3MDL INT1

38 LIS3MDL DRDY

C SCL

CN10

C SDA

25 HTS221 DRDY

27 LPS25H INT1

29 LSM6DS0 INT1

33 USER INT (optional)

DocID026959 Rev 1 9/14

UM1820 Board schematic and bill of material

4 Board schematic and bill of material

This section contains the bill of material, schematic and layout of the X-NUCLEO-IKS01A1.

4.1 Bill of material

Table 6. X-NUCLEO-IKS01 bill of material

Quantity Designator Value Part number Comment Package

reference

5C1, C2, C4, C7,

C8 100nF CAP CER 0603

100nF 25V X7R

10% 0603

2 C3, C5 10uF CAP CER 0805

10uF 10V X7R

10% 0805

1 C6 10nF CAP CER 0603

10nF 25V X7R

10% 0603

1C94.7uF

CAP CER 0805

4.7uF 16V X7R

10% 0805

1 CN5 Header 10x1 Extra-long 10 pins

female-male strip Female side

mounted to the top HDR1X10

2 CN6, CN9 Header 8x1 Extra-long 8 pins

female-male strip Female side

mounted to the top HDR1X8

2 CN7, CN10 Header 19x2 Header, 19-Pin,

Dual row Not mounted HDR2X19

1 CN8 Header 6x1 Extra-long 6 pins

female-male strip Female side

mounted to the top HDR1X6

1 J1 DIL24 Socket DIL24 Socket DIL24

5JP1, JP2, JP3,

JP4, JP5 Header 2x1 Header 1x2 pins,

2.54mm, straight HDR1x2

1 JP6 Header 4x2 Header 2x4 pins,

2.54mm, straight HDR2x4

2 R1, R2 4k7 RES 06034k71%

1/16W 0603

1R32k2

RES 06032k21%

1/16W 0603

Board schematic and bill of material UM1820

10/14 DocID026959 Rev 1

SB1, SB2, SB3,

SB5, SB6, SB7,

SB9, SB10,

SB11, SB12,

SB13, SB16,

SB18, SB19,

SB20, SB21,

SB22, SB23,

SB24, SB25,

SB26, SB27,

SB28

Solder Bridge R0603 0R Close 0603

5SB4, SB8,

SB14, SB15,

SB17 Solder Bridge Open 0603

3 TP1, TP2, TP3 Header 1x1 Header 1x1 pins,

2.54mm, straight Not mounted

1 U1 LIS3MDL LIS3MDL ST-SUPPLY LGA 2x2 12L

1 U2 LSM3DS0 LSM6DS0 ST-SUPPLY LGA 3x3 16L

1 U3 HTS221 HTS221 ST-SUPPLY HLGA 2x2 6L

1 U4 LPS25H LPS25H ST-SUPPLY HCLGA 2.5x2.5

10L

Table 6. X-NUCLEO-IKS01 bill of material (continued)

Quantity Designator Value Part number Comment Package

reference

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