STMicroelectronics X-NUCLEO-53L7A1 User Manual

UM3067

User manual

Getting started with the X-NUCLEO-53L7A1 expansion board for STM32 Nucleo based on the VL53L7CX

Introduction

The X-NUCLEO-53L7A1 is an expansion board for any STM32 Nucleo development board equipped with the Arduino R3 connectors. It provides a complete evaluation kit that allows you to learn, evaluate, and develop applications using the

VL53L7CX Time-of-Flight 8x8 multizone ranging sensor with 90° FoV.

The expansion board is delivered with a cover glass holder in which you can fit three different spacers of 0.25, 0.5, and 1 mm height below the cover glass to simulate various air gaps. A small oval cover glass fitting the sensor is included.

Several ST expansion boards can be stacked through the Arduino connectors, which allow, for example, the development of

VL53L7CX applications with Bluetooth or Wi-Fi interfaces.

Figure 1. X-NUCLEO-53L7A1 expansion board, spacers, cover glass holder, and oval cover glass

UM3067 - Rev 1 - Octo ber 2022

For further information contact your local STMicroelectronics sales office.

www.st.com

1

1.1

1.1.1

UM3067

Getting started

Getting started

Safety considerations

Electrostatic precautions

Warning: Take electrostatic precautions, including ground straps, when using the X-NUCLEO-53L7A1 expansion board. Failure to prevent electrostatic discharge could damage the device.

Figure 2. Electrostatic logo

1.1.2

Laser safety considerations

The VL53L7CX contains a laser emitter and the corresponding drive circuitry.

The laser output is designed to remain within Class 1 laser safety limits under all reasonable foreseeable conditions, including single faults, in compliance with the IEC 60825-1:2014 (third edition).

The laser output remains within Class 1 limits as long as you use the STMicroelectronics recommended device settings and respect the operating conditions specified in the data sheet.

The laser output power must not be increased and no optics should be used with the intention of focusing the laser beam.

Figure 3. Class 1 laser product label

1.2

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•

•

•

•

•

•

•

•

•

•

Features

VL53L7CX Time-of-Flight 8x8 multizone ranging sensor with 90° FoV

Accurate absolute ranging distance, independent of the reflectance of the target

Up to 350 cm ranging

Histogram-based technology

Multiobject detection capability

0.25, 0.5, and 1 mm spacers to simulate air gaps

One cover glass to protect the sensor from dust

Compatible with STM32 Nucleo development boards

Equipped with Arduino® UNO R3 connectors

Full system software supplied, including code examples and graphical user interface

RoHS, CE, UKCA, and China RoHS compliant

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VL53L7CX Time-of-Flight sensor characteristics

1.3

•

•

•

•

VL53L7CX Time-of-Flight sensor characteristics

Laser wavelength: 940 nm

Invisible laser radiation

Maximum laser power emitted: 130 mW

Integration time: 2 ms minimum

1.4

Spacers and covers

The X-NUCLEO-53L7A1 expansion board is delivered with:

•

• three spacers of 0.25 mm, 0.5 mm, and 1 mm height, used to simulate different air gaps between the

VL53L7CX and the rectangular-shaped cover glass; two nine-pin headers that allow connecting the two breakout boards to the X-NUCLEO-53L7A1 expansion board.

Attention: The VL53L7CX is delivered with a liner to prevent potential foreign material from piercing the module holes during the assembly process. Remove this liner before use.

1.5

Ordering information

Order code

X-NUCLEO-53L7A1

Table 1. Ordering information

Core product

VL53L7CX

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2

Simplified schematic

Figure 4. X-NUCLEO-53L7A1 expansion board - simplified schematic

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Simplified schematic

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Using the expansion board

3

Using the expansion board

•

•

•

The X-NUCLEO-53L7A1 expansion board allows the user to test the VL53L7CX sensor functionality, to program it and to understand how to develop an application using this sensor.

The X-NUCLEO-53L7A1 integrates: the VL53L7CX

Connectors for

sensor;

Arduino UNO R3 connectors;

SATEL-VL53L7CX optional breakout boards;

Important: Program a microcontroller to control the VL53L7CX through the I2C bus.

The application software and an example of the C-ANSI source code are available on the sensor web page .

The X-NUCLEO-53L7A1 expansion board can be connected to the STM32 Nucleo development board through the Arduino UNO R3 connectors (CN5, CN6, CN8, and CN9) as shown in

Figure 4

.

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4

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Breakout boards

Breakout boards

The X-NUCLEO-53L7A1 package does not include the VL53L7CX breakout boards.

You can purchase them in a pack of two PCBs as SATEL-VL53L7CX .

The X-NUCLEO-53L7A1 supplies the VL53L7CX breakout boards at 3.3 V (see

Figure 4

).

For mechanical integration purposes, it could be interesting to use the mini PCB by breaking the SATEL-

VL53L7CX along the red line as shown in the figure below. It is easier to integrate this setup into a customer's device thanks to its small size.

Figure 5. SATEL-VL53L7CX

The SATEL-VL53L7CX boards can be directly plugged onto the X-NUCLEO-53L7A1 through the two 9-pin

headers (see Figure 6. SATEL-VL53L7CX breakout boards connected to the X-NUCLEO-53L7A1 expansion board

).

As an alternative, they can be connected to the X-NUCLEO-53L7A1 by using the mini PCB through flying wires

(see

Figure 7

).

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Breakout boards

Figure 6. SATEL-VL53L7CX breakout boards connected to the X-NUCLEO-53L7A1 expansion board

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Breakout boards

Figure 7. VL53L7CX mini PCB flying wire connection to the X-NUCLEO-53L7A1 expansion board

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Graphical user interface (GUI) and programming example for the X-NUCLEO-53L7A1

5

Graphical user interface (GUI) and programming example for the

X-NUCLEO-53L7A1

To evaluate the VL53L7CX device performance, use the related GUI.

The X-NUCLEO-53L7A1 expansion board requires the NUCLEO-F401RE development board to use the GUI.

Important: Despite the fact that the X-NUCLEO-53L7A1 can be stacked on any STM32 Nucleo board equipped the Arduino

R3 connectors, the GUI is designed to work with the NUCLEO-F401RE only.

Download the GUI (in the Tools and Software tab of the X-NUCLEO-53L7A1 web page) to evaluate the

VL53L7CX .

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6

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Schematic diagrams

Schematic diagrams

Figure 8. X-NUCLEO-53L7A1 circuit schematic (1 of 5)

3V3

R1

2.2k

R2

2.2k

Host.SchDoc

PA1

PA2

PA3

PA5

PA6

PA7

PB6

PC1

PB8

PB9

PB3

PB4

PA4

PB0

PA9

PB5

PA10

PC0

Sensor.SchDoc

SCL

SDA

I2C_RST

LPn

INT

PWR_EN

Right

Satellite Connector.SchDoc

SCL

SDA

I2C_RST

LPn

INT

PWR_EN

PA8

PB10

PC7

PA0

Left

Satellite Connector.SchDoc

SCL

SDA

I2C_RST

LPn

INT

PWR_EN

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Schematic diagrams

PWR_EN

3V3_NUCLEO

R3

47k

Figure 9. X-NUCLEO-53L7A1 circuit schematic (2 of 5)

5V_NUCLEO

C2

1uF

10V

3

4

1

XC6222D331MR-G

U1

VIN VOUT

CE

NC

5

3V3

C1

4.7uF

6.3V

AVDD and IOVDD power supply for main sensor

Max Current = 60 mA + 90 mA = 150 mA

Power = 1.7 V x 150 mA = 255 mW

Satellite boards supplied directly from host power supplies

3V3 3V3

LPn

SCL

SDA

I2C_RST

Jumpers for current measurement

C3

4.7uF

6.3V

C4

100nF

10V

3V3

R4

47k

R7

47k

U2

A5

LPn

C4

C3

SCL

SDA

A1

I2C_RST

INT

A3

RSVD6

RSVD5

C2

C5

RSVD1

RSVD2

RSVD3

RSVD4

VL53L7CX

A6

A7

C6

A2

3V3

R5

47k

R6

47k

INT page 11/22

UM3067 - Rev 1

Figure 10. X-NUCLEO-53L7A1 circuit schematic (3 of 5)

Nucleo Arduino Connectors

5V_NUCLEO 3V3_NUCLEO

5

6

7

8

1

2

3

4

CN6

8x1, 2.54mm, T/H

SSQ-108-03-F-S

CN5

5

4

7

6

3

2

1

10

9

8

10x1, 2.54mm, T/H

SSQ-110-03-F-S

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Schematic diagrams

PB8

PB9

PA5

PA6

PA7

PB6

PC7

PA9

PA0

PA1

PA4

PB0

PC1

PC0

3

4

1

2

5

6

CN8

6x1, 2.54mm, T/H

SSQ-106-03-F-S

CN9

3

2

1

5

4

8

7

6

8x1, 2.54mm, T/H

SSQ-108-03-F-S

PA8

PB10

PB4

PB5

PB3

PA10

PA2

PA3 page 12/22

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Figure 11. X-NUCLEO-53L7A1 circuit schematic (4 of 5)

3V3_NUCLEO 5V_NUCLEO

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Schematic diagrams

INT

I2C_RST

SDA

SCL

LPn

PWR_EN

9

8

7

6

5

4

3

2

1

J5_Left

9x1, 2.54mm, T/H

Figure 12. X-NUCLEO-53L7A1 circuit schematic (5 of 5)

3V3_NUCLEO 5V_NUCLEO

INT

I2C_RST

SDA

SCL

LPn

PWR_EN

9

8

7

6

5

4

3

2

1

J5_Right

9x1, 2.54mm, T/H page 13/22

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UM3067

Bill of materials

Bill of materials

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Item

0

1

1

1

1

1

1

1

2

2

2

2

2

2

4

Q.ty

Table 2. X-NUCLEO-53L7A1 bill of materials

Ref.

Part/value

R3 Not Fitted 47k, 0201, 1/20 W

Description

RES, 47k, 1%,

1/20W, 0201

C4 Fitted

Manufacturer

Panasonic

100nF, 0201, 10 V

CAP, CER, 100nF,

10V, X5R, 0201

Murata

Order code

ERJ1GNF4702C

GRM033R61A104KE15D

C2 Fitted

CN5 Fitted

CN8 Fitted

U2 Fitted

U1 Fitted

-

-

1uF, 0201, 10 V

VL53L7CXV0GC/

1

SOT-25

CAP, CER, 1uF,

10V, X5R, 0201

CONN, HEADER,

10POS, SNGL,

2.54mm, T/H

CONN, HEADER,

6POS, SNGL,

2,54mm, T/H

Samsung

Samtec

Samtec

CL03A105KP3NSNC

SSQ-110-03-F-S

SSQ-106-03-F-S

Time-of-Flight 8x8 multizone ranging sensor with wide field of v

IC, REG, LDO,

3.3V, 0.7A,

SOT25

ST

Torex

Semiconductor

VL53L7CXV0GC/1

XC6222D331MR-G

A1 Fitted

C1, C3 Fitted 4.7uF, 0402, 6.3 V

PCB X-

NUCLEO-53L7A1

CAP, CER, 4.7uF,

6.3V, X5R, 0402 manufacturer

TDK

PCB4132B

C1005X5R0J475K050BC

J1, J2 Fitted

J5_Left,

J5_Right

Fitted

CN6, CN9

Fitted

R1, R2 Fitted

LK1, LK2

Fitted

R4, R5, R6,

R7 Fitted

-

-

CONN, HEADER,

2POS, 2.54MM,

T/H, VERT

CONN, HEADER,

9POS, SNGL,

2.54mm, T/H

CONN, HEADER,

8POS, SNGL,

2,54mm, T/H

-

2.2k, 0402, 1/16

W

47k, 0201, 1/20 W

RES, 2.2k, 1%,

1/16W, 0402

LINK, HEADER,

2.54MM

RES, 47k, 1%,

1/20W, 0201

Harwin

Samtec

Samtec

Stackpole

Electronics

Harwin

Panasonic

M20-9990245

SSW-109-01-G-S

SSQ-108-03-F-S

RMCF0402FT2K20

M7571-05

ERJ1GNF4702C

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8

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Board versions

Board versions

Table 3. X-NUCLEO-53L7A1 versions

PCB version

X$NUCLEO-53L7A1-

(1)

Schematic diagrams

X$NUCLEO-53L7A1- schematic diagrams

Bill of materials

X$NUCLEO-53L7A1-bill of materials

1. This code identifies the X-NUCLEO-53L7A1 expansion board first version. It is printed on the board PCB.

UM3067 - Rev 1 page 15/22

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Regulatory compliance information

Regulatory compliance information

Notice for US Federal Communication Commission (FCC)

For evaluation only; not FCC approved for resale.

FCC NOTICE - This kit is designed to allow:

(1) Product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and

(2) Software developers to write software applications for use with the end product.

This kit is not a finished product and when assembled may not be resold or otherwise marketed unless all required FCC equipment authorizations are first obtained. Operation is subject to the condition that this product not cause harmful interference to licensed radio stations and that this product accept harmful interference. Unless the assembled kit is designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must operate under the authority of an FCC license holder or must secure an experimental authorization under part 5 of this chapter 3.1.2

Notice for Innovation, Science and Economic Development Canada (ISED)

For evaluation purposes only. This kit generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to Industry Canada (IC) rules.

À des fins d'évaluation uniquement. Ce kit génère, utilise et peut émettre de l'énergie radiofréquence et n'a pas

été testé pour sa conformité aux limites des appareils informatiques conformément aux règles d'Industrie Canada

(IC).

Notice for European Union

This device is in conformity with the essential requirements of the Directive 2014/30/EU (EMC) and of the

Directive 2015/863/EU (RoHS).

Notice for United Kingdom

This device is in compliance with the UK Electromagnetic Compatibility Regulations 2016 (UK S.I. 2016 No. 1091) and with the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment

Regulations 2012 (UK S.I. 2012 No. 3032).

UM3067 - Rev 1 page 16/22

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Appendix A

References

VL53L7CX data sheet

X-NUCLEO-53L7A1 data brief: DB4808

X-CUBE-TOF1 data brief: DB4449

UM3067

References

UM3067 - Rev 1 page 17/22

Revision history

Date

13 Oct -2022

Table 4. Document revision history

Revision

1 Initial release.

Changes

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UM3067 - Rev 1 page 18/22

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Contents

Contents

1 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

1.1

Safety considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.1.1

Electrostatic precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.1.2

Laser safety considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.2

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.3

VL53L7CX Time-of-Flight sensor characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.4

Spacers and covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.5

Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 Simplified schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

3 Using the expansion board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

4 Breakout boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

5 Graphical user interface (GUI) and programming example for the X-NUCLEO-53L7A1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

6 Schematic diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

7 Bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

8 Board versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

9 Regulatory compliance information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Appendix A References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

List of tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

List of figures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

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List of tables

List of tables

Table 1. Ordering information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Table 2. X-NUCLEO-53L7A1 bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Table 3. X-NUCLEO-53L7A1 versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Table 4. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

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List of figures

List of figures

Figure 1. X-NUCLEO-53L7A1 expansion board, spacers, cover glass holder, and oval cover glass. . . . . . . . . . . . . . . . . 1

Figure 2. Electrostatic logo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Figure 3. Class 1 laser product label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Figure 4. X-NUCLEO-53L7A1 expansion board - simplified schematic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Figure 5. SATEL-VL53L7CX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 6. SATEL-VL53L7CX breakout boards connected to the X-NUCLEO-53L7A1 expansion board . . . . . . . . . . . . . . 7

Figure 7. VL53L7CX mini PCB flying wire connection to the X-NUCLEO-53L7A1 expansion board . . . . . . . . . . . . . . . . . 8

Figure 8. X-NUCLEO-53L7A1 circuit schematic (1 of 5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 9. X-NUCLEO-53L7A1 circuit schematic (2 of 5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 10. X-NUCLEO-53L7A1 circuit schematic (3 of 5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 11. X-NUCLEO-53L7A1 circuit schematic (4 of 5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 12. X-NUCLEO-53L7A1 circuit schematic (5 of 5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

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IMPORTANT NOTICE – READ CAREFULLY

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Information in this document supersedes and replaces information previously supplied in any prior versions of this document.

© 2022 STMicroelectronics – All rights reserved

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