Connect the VL53L3CX-SATEL breakout board to an STM32 Nucleo
development board (NUCLEO-F401RE, NUCLEO-L476RG, or
NUCLEO-U575ZI-Q) using the appropriate connectors.

Step 2: Software Setup

Ensure that the necessary software prerequisites are installed
on your system as specified in the documentation.

Step 3: Demo Examples

Refer to the provided demo examples to understand how to
interact with the VL53L3CX sensor using the provided software
architecture.

Frequently Asked Questions (FAQ)

Q: Can I use the VL53L3CX-SATEL board with other development
boards?

A: The VL53L3CX-SATEL board is designed to be compatible with
STM32 Nucleo development boards, ensuring optimal performance and
functionality.

Q: How can I update the firmware on the VL53L3CX-SATEL
board?

A: Firmware updates can be performed using the FOTA feature.
Refer to the latest information available at www.st.com for
detailed instructions on firmware updates.

View Fullscreen

VL53L3CX_SATEL_02

Quick Start Guide
STM32Cube function pack for IoT node BLE connectivity and time-of-flight sensors (FP-SNS-FLIGHT1)
Version 4.1 (January 31, 2025)

1 Hardware and Software overview 2 Setup & Demo Examples 3 Documents & Related Resources 4 STM32 Open Development Environment: Overview

Agenda
2

1- Hardware and Software overview

Hardware Overview
Sample implementations are available for STM32 Nucleo development boards plugged on STM32 Nucleo expansion boards:
NUCLEO-F401RE (or NUCLEO-L476RG or NUCLEO-U575ZI-Q) + X-NUCLEO-BNRG2A1 + XNUCLEO-53L3A2
NUCLEO-F401RE (or NUCLEO-L476RG or NUCLEO-U575ZI-Q) + X-NUCLEO-BNRG2A1 + VL53L3CX-SATEL
4

Bluetooth Low Energy Expansion Board
Hardware Overview (1/6)

Hardware Description
· The X-NUCLEO-BNRG2A1 is a Bluetooth Low Energy (BLE) evaluation and development board system, designed around ST’s BLUENRG-M2SP Bluetooth Low Energy module based on BlueNRG-2.
· The BlueNRG-2 processor hosted in the BLUENRG-M2SP module communicates with the STM32 microcontroller, hosted on the Nucleo development board, through an SPI link available on the Arduino UNO R3 connector.
Key Product on board
· BLUENRG-M2SP Bluetooth Low Energy, FCC and IC certified (FCC ID: S9NBNRGM2SP, IC: B976C-BNRGM2SP), module based on Bluetooth® Low Energy wireless network processor BlueNRG-2, BLE v5.0 compliant.
· BLUENRG-M2SP integrates a BALF-NRG-02D3 balun and a PCB antenna. It embeds 32 MHz crystal oscillator for the BlueNRG-2.
· M95640-RMC6TG 64-Kbit serial SPI bus EEPROM with high-speed clock interface

Arduino UNO R3 connector

BLUENRG-M2SP

M95640-RMC6TG

Latest info available at www.st.com

X-NUCLEO-BNRG2A1

VL53L3CX Nucleo expansion board (X-NUCLEO-53L3A2)
Hardware Overview (2/6)

X-NUCLEO-53L1A2 Hardware Description

· The X-NUCLEO-53L3A2 is a ranging sensor with multi target detection evaluation and development board designed around the VL53L3CX sensor based on ST FlightSense Time-of-Flight technology.
· The VL53L3CX communicates with the STM32 Nucleo developer board host microcontroller through an I2C link available on the Arduino UNO R3 connector.

Key Product on board
· VL53L3CX Time-of-Flight (ToF) ranging sensor with multi target detection

· 0.25, 0.5 and 1mm spacers to simulate air gaps, with the cover glass

· Cover window (made by Hornix) sample with low cross-talk ready to use / clipable on VL53L3CX

· Two VL53L3CX breakout boards

VL53L3cx

Latest info available at www.st.com

X-NUCLEO-53L3A2

Breakout board with VL53L3CX (VL53L3CX-SATEL)
Hardware Overview (3/6)
VL53L3CX-SATEL Hardware Description
· The VL53L3CX-SATEL breakout boards can be used for easy integration into customer devices. Thanks to the voltage regulator and level shifters, it can be used in any application with a 2.8 V to 5 V supply.
· The PCB section supporting the VL53L3CX module is perforated so that developers can break off the mini-PCB for use in a 2.8 V supply application using flying leads.

Key Product on board
· VL53L3CX Time-of-Flight (ToF) ranging sensor with multi target detection · Regulator: 5 to 2.8 V range input voltage (output voltage: 2.8 V)
· VL53L3CX signal interface level shifter

VL53L3cx
Latest info available at www.st.com VL53L3CX-SATEL 7

Important Hardware Additional Information
Hardware Overview (4/6)

BlueNRG-2 library does not work with the stock firmware that is loaded in the BLE module of X-NUCLEO-BNRG2A1 expansion board.
For this reason:
· first of all, it is needed to solder on X-NUCLEO-BNRG2A1, if it is not soldered, a 0 Ohm resistor at R117.
· Then you can use a standard ST-Link V2-1 with 5 jumper wires female-female together with STSW-BNRGFLASHER software tool (currently available only for Windows PC) in order to update the firmware of the BLE module of X-NUCLEOBNRG2A1.
You need to connect the J12 pins of the X-NUCLEO-BNRG2A1 to the pins of the ST-Link V2-1 as shown in the picture and follow the steps show in the next slide.
In particular we have the following connections:
J12 ST-Link V2-1

Pin 1

Pin 2

Pin 3

Pin 4

Pin 5

Important Hardware Additional Information
Hardware Overview (5/6)
1. install the ST BlueNRG-1_2 Flasher Utility and open it, then select the SWD tab
2. Erase the flash memory of the BlueNRG-2 chip 3. Download the Link Layer Only firmware for the BLE
module from the following link DTM_LLOnly.bin 4. Load the Link Layer Only firmware in the ST
BlueNRG-1_2 Flasher Utility and then press the “Flash” button 5. If you need to restore the stock firmware of the BLE module of X-NUCLEO-BNRG2A1, you can repeat the procedure using this firmware image DTM_Full.bin 6. If you should find some issues during the update process, you can try to repeat the procedure closing the J15 jumper on the X-NUCLEO-BNRG2A1 expansion board.
9

Important Hardware Additional Information
Hardware Overview (6/6)

3V3 GND

SCL SDA
XSDN

VL53L3CX-SATEL

SCL

SDA

XSDN

VDD_SENSOR

GND_X

Arduino Connector
D15 D14 D4 3V3 GND

NUCLEO-F401RE NUCLEO-L476RG
PB8

NUCLEO-U575ZI-Q PB8

PB9

PB5

PF14

CN6 pin n. 4

CN8 pin n. 7

CN6 pin n. 6

CN8 pin n. 11

9 10 7 8 5 6 3 4 1 2

Software Description
· The FP-SNS-FLIGHT1 is an STM32Cube function pack, which lets your IoT node connect to a smartphone via BLE and uses a suitable Android or iOS application like the STBLESensor app to view real-time object distance data read by the Time-of- Flight sensor.
· The package also enables advanced functions, such as presence detection inside a fixed range distance.
· This package, together with the suggested combination of the STM32 and ST devices, can be used to develop wearable applications or smart thing applications in general.
· The software runs on the STM32 microcontroller and includes all the necessary drivers to recognize the devices on the STM32 Nucleo development board.
Key features
· Complete firmware to develop an IoT node with BLE connectivity, and Time-of-Flight sensors · Compatible with STBLESensor application for Android/iOS to perform distance data reading and
firmware update (FOTA)
· Multitarget ranging sensor application based on the VL53L3CX Time-of-Flight (ToF) sensor · Sample implementation available for X-NUCLEO-53L3A2 (or VL53L3CX-SATEL) and X-NUCLEO-
BNRG2A1 connected to a NUCLEO-F401RE or NUCLEO-L476RG or NUCLEO-U575ZI-Q
· Compatible with STM32CubeMX, can be downloaded from and installed directly into STM32CubeMX
· Easy portability across different MCU families, thanks to STM32Cube · Free user-friendly license terms

FP-SNS-FLIGHT1
Software Overview
Overall Software Architecture
Latest info available at www.st.com FP-SNS-FLIGHT1 11

2- Setup & Demo Examples

Setup & Demo Examples
Software and Other prerequisites
· STSW-LINK004
· STM32 ST-LINK Utility (STSW-LINK004) is a full-featured software interface for programming STM32 microcontrollers
· FP-SNS-FLIGHT1
· Copy the .zip file content of the firmware package into a folder on your PC. · The package contains source code example (Keil, IAR, STM32CubeIDE) compatible with NUCLEO-F401RE,
NUCLEO-L476RG, NUCLEO-U575ZI-Q
· ST BLE Sensor Application for Android (V5.2.0 or higher) /iOS (V5.2.0 or higher) to download from Google Store / iTunes
13

2.1- Setup Overview: STM32 Nucleo with Expansion boards

Setup Overview
HW prerequisites with STM32 Nucleo Expansion boards

· 1 x Bluetooth Low Energy expansion board (X-NUCLEO-BNRG2A1)

· 1 x STM32 ranging sensor expansion board (X-NUCLEO-53L3A2 or VL53L3CX-SATEL)

· 1 x STM32 Nucleo development board (NUCLEO-U575ZI-Q or NUCLEO-F401RE or NUCLEO-L476RG)
· 1x Android or iOS device

NUCLEO-U575ZI-Q

· 1 x PC with Windows 10 and above

· 1x USB type A to Mini-B USB cable for NUCLEO-F401RE or NUCLEO-L476RG · 1x USB type A to Micro-B USB cable for NUCLEO-U575ZI-Q

NUCLEO-F401RE NUCLEO-L476RG

X-NUCLEO-BNRG2A1 X-NUCLEO-53L3A2

VL53L3CX-SATEL

Micro USB

Mini USB

It is necessary to connect the boards in the order shown in this picture

www.st.com/stm32ode
1

Setup Overview
Start coding in just a few minutes (1/3)
FP-SNS-FLIGHT1 package structure

2
Select Function Pack: FP-SNS-FLIGHT1

3
Download & unpack

Docs BSP, HAL and drivers BlueNRG-2, BLE_Manager Applications and examples
Boot loader binary

Android /iOS smartphone and

ST BLE Sensor application

(V5.2.0/5.2.0 or higher)

4
.Projects NUCLEO-F401RE ExamplesBootLoader .Projects NUCLEO-L476RG Examples BootLoader .Projects NUCLEO-F401RE Applications<53L3A2> or <CUSTOM>FLIGHT1 .Projects NUCLEO-L476RG Applications<53L3A2> or <CUSTOM> FLIGHT1 .Projects NUCLEO-U575ZI-QApplications<53L3A2> or <CUSTOM> FLIGHT1
Use the pre-compiled binaries for registering your device, or alternative re-compile the code adding your device certificate
5
16

Setup Overview
Start coding in just a few minutes (2/3)
1. How to install the pre-compiled binary:
· For each applications, there is inside the package one folder called “Binary”
· It contains:
For NUCLEO-F401RE and NUCLEO-L476RG:
· pre-compiled FP-SNS-FLIGHT1 FW that could be flashed to a supported STM32 Nucleo for X-NUCLEO-53L3A2 using the STM32CubeProgrammer at the right position (0x08004000) o Important Note: this pre-compiled binary is compatible with the FOTA update procedure
· pre-compiled FP-SNS-FLIGHT1 + BootLoader FW that could be directly flashed to a supported STM32 Nucleo for X-NUCLEO-53L3A2 using the STM32CubeProgrammer or by doing “Drag & Drop” o Important Note: this pre-compiled binary is not compatible with the FOTA update procedure
· pre-compiled FP-SNS-FLIGHT1 FW that could be directly flashed to a supported STM32 Nucleo for VL53L3CX-SATEL using the STM32CubeProgrammer or by doing “Drag & Drop”
For NUCLEO-U575ZI-Q:
· pre-compiled FP-SNS-FLIGHT1 could be directly flashed to a supported STM32 Nucleo (for X-NUCLEO-53L3A2 and for VL53L3CX-SATEL) using the STM32CubeProgrammer or by doing “Drag & Drop”. o Important Note: For the first installation, after the full flash erase (suggest procedure), use the STM32CubeProgrammer to set STM32 MCU user byte settings to use the bank 1 for flash the firmware and starts the application
17

2. How Install the code after compiling the project for NUCLEO-F401RE and NUCLEO-L476RG:
· Compile the project with your preferred IDE

Setup Overview
Start coding in just a few minutes (3/3)

· In the folder Utilities there is a scripts *.sh that makes the following operations:
· Full Flash Erase · Flash the right BootLoader at the right position (0x08000000) · Flash the FLIGHT1 firmware at the right position (0x08004000)
This is the firmware that was compiled with the IDE This firmware is compatible with the FOTA update procedure
· Save a complete Binary FW that includes both FLIGHT1 and the BootLoader
This binary can be directly flashed to a supported STM32 board using the ST-Link or by doing “Drag & Drop”
Important Note: this additional pre-compiled binary is not compatible with the FOTA update procedure
Before to execute the *.sh script, it is necessary to edit it to set the installation path for STM32CubeProgrammer.
BootLoaderPath and BinaryPath as input are required when execute *.sh script
18

Setup Overview
Flash Management and Boot Process
Flash Structure for STM32F401RE
19

Setup Overview
Bluetooth low energy and sensors software
FP-SNS-FLIGHT1 for NUCLEO-F401RE / NUCLEO-L476RG / NUCLEO-U575ZI-Q – Serial line monitor (e.g.Tera Term)
· Pressing the RESET button on STM32 Nucleo triggers the initialization phase

· When the boards are connected to an Android or iOS device, you can see what is transmitted via BLE

Configure the serial line monitor (speed, LF) 20

2.4- Demo Examples ST BLE Sensor Application Overview

Hardware Features Android Version

Demo Examples
ST BLE Sensor Application for Android/iOS (1/5)

2 Plot Data: Objects distances and presence

Objects distances
22

Demo Examples
ST BLE Sensor Application for Android/iOS (2/5)

Hardware Features Android Version

1 2

Led Status

Presence Detection

NOTE
The presence is identified inside a fixed range distances that can be modified by these line code:

#define PRESENCE_MIN_DISTANCE_RANGE 300 #define PRESENCE_MAX_DISTANCE_RANGE 800
23
in the file FLIGHT1_config.h that can find in the Inc users folder for each project.

Board Configuration Android version

Demo Examples
ST BLE Sensor Application for Android/iOS (3/5)
24

Demo Examples
ST BLE Sensor Application for Android/iOS (4/5)

Debug Console Android version

Menu option

Command Help

Command Info

Not Recognized Command
25

Demo Examples
ST BLE Sensor Application for Android/iOS (5/5)

Firmware Upgrade Android version Application page during FOTA and on completion

Menu option

Firmware upgrade page

Firmware update file selection

Terminal window information during FOTA
26

3- Documents & Related Resources

Documents & Related Resources
All documents are available in the DESIGN tab of the related products webpage
FP-SNS-FLIGHT1:
· DB2862: STM32Cube function pack for IoT node with NFC, BLE connectivity and time-of-flight sensors data brief · UM2026: Getting started with the STM32Cube function pack for IoT node with NFC, BLE connectivity and time-of-flight sensors user manual · Software setup file
X-NUCLEO-BNRG2A1
· Gerber files, BOM, Schematic · DB4086: Bluetooth Low Energy expansion board based on the BLUENRG-M2SP module for STM32 Nucleo data brief · UM2667: Getting started with the X-NUCLEO-BNRG2A1 BLE expansion board based on BLUENRG-M2SP module for STM32 Nucleo user manual
X-NUCLEO-53L3A2:
· Gerber files, BOM, Schematic · DB4226: Time-of-Flight ranging sensor with multi target detection expansion board based on VL53L3CX for STM32 Nucleo data brief · UM2757: Getting started with X-NUCLEO-53L3A2 multi target ranging ToF sensor expansion board based on VL53L3CX for STM32 Nucleo user manual
VL53L3CX-SATEL:
· Gerber files, BOM, Schematic · DB4194: VL53L3CX breakout board Time-of-Flight ranging sensor with multi target detection data brief · UM2853: How to use the VL53L3CX with STMicroelectronics’ X-CUBE-TOF1 Time-of-Flight sensor software packages for STM32CubeMX user manual

Consult www.st.com for the complete list

4- STM32 Open Development Environment: Overview

STM32 Open Development Environment Fast, affordable Prototyping and Development
· The STM32 Open Development Environment (STM32 ODE) is an open, flexible, easy, and affordable way to develop innovative devices and applications based on the STM32 32-bit microcontroller family combined with other state-of-the-art ST components connected via expansion boards. It enables fast prototyping with leading-edge components that can quickly be transformed into final designs

STM32Cube development software

STM32 Nucleo expansion boards
(X-NUCLEO)

STM32 Nucleo development boards

STM32Cube expansion software
(X-CUBE)

Function Packs (FP)
For further information, please visit www.st.com/stm32ode
30

Thank you
© STMicroelectronics – All rights reserved. The STMicroelectronics corporate logo is a registered trademark of the STMicroelectronics group of companies. All other names are the property of their respective owners.

Documents / Resources

ST STM32Cube IoT node BLE Function Pack [pdf] User Guide
NUCLEO-F401RE, NUCLEO-L476RG, NUCLEO-U575ZI-Q, X-NUCLEO-BNRG2A1, XNUCLEO-53L3A2, VL53L3CX-SATEL, STM32Cube IoT node BLE Function Pack, STM32Cube, IoT node BLE Function Pack, BLE Function Pack

References

User Manual

STM32Cube IoT node BLE Function Pack User Guide

STM32Cube IoT node BLE Function Pack

Product Information

Specifications:

Hardware Overview

Key Features:

Software Description:

Software Requirements:

Additional Information:

Product Usage Instructions

Setup & Demo Examples

Step 1: Hardware Setup