ST AN5717 Instructions d'installation et d'utilisation
Introduction
The purpose of this document is to describe how to set up and run the VL53L5CX-SATEL directly connected to an
STM32 Nucleo64 board.
The VL53L5CX-SATEL breakout boards can be used for easy integration into customer devices.
The PCB section supporting the VL53L5CX module is perforated so that developers can break off the mini PCB for use in
a 3.3 V supply application using flying wires. This makes it easier to integrate the VL53L5CX-SATEL breakout boards into
development and evaluation devices due to their small size.
The VL53L5CX-SATEL is designed to connect remotely the VL53L5CX sensor to any type of electronic controller. To quick
start such application, this document explains where to connect this board to the NUCLEO-F401RE board, where to find the
dedicated code example, and how to make it operate.
How to setup and run the VL53L5CX-SATEL using an STM32 Nucleo64 board
AN5717
Application note
AN5717 - Rev 2 - December 2021
For further information contact your local STMicroelectronics sales office.
www.st.com
1Hardware connections guidelines
1.1 Connecting the VL53L5CX-SATEL to a NUCLEO-F401RE board
The Figure 1. VL53L5CX-SATEL flying lead connection to NUCLEO-F401RE shows the schematic to connect
directly a VL53L5CX-SATEL board to a NUCLEO-F401RE board without the X-NUCLEO-53L5A1 expansion
board.
Figure 1. VL53L5CX-SATEL flying lead connection to NUCLEO-F401RE
The pin list connection between the boards is described in Table 1. Connections between VL53L5CX-SATEL and
NUCLEO-F401RE.
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Hardware connections guidelines
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Table 1. Connections between VL53L5CX-SATEL and NUCLEO-F401RE
LEFT Connectors RIGHT Connectors
CN No. VL53L5C
X-SATEL Pin No. Pin Name MCU Pin MCU Pin Pin Name Pin No. VL53L5C
X-SATEL CN No.
- - - - - PB8 D15 10 SCL
CN5
Digital
- - - - - PB9 D14 9 SDA
- - - - - - AREF 8
- - - - - - GND 7 GND
CN6
Power
- 1 NC - PA5 D13 6
- 2 IOREF - PA6 D12 5
- 3 RESET NRST PA7 D11 4
IOVDD 4 +3V3 - PB6 D10 3
AVDD 5 +5V - PC7 D9 2
6 GND - PA9 D8 1
7 GND - - - - -
8 VIN - PA8 D7 8
CN9
Digital
- - - - PB10 D6 7
CN8
Analog
1 A0 PA0 PB4 D5 6
I2C_RST 2 A1 PA1 PB5 D4 5
INT 3 A2 PA4 PB3 D3 4
LPn 4 A3 PB0 PA10 D2 3
5 A4 PC1 PA2 D1 2
PWR_EN 6 A5 PC0 PA3 D0 1
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Connecting the VL53L5CX-SATEL to a NUCLEO-F401RE board
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1.2 Connecting the breakout VL53L5CX-SATEL to a NUCLEO-F401RE board
For the mechanical integration purpose, user may use the satellite breakout PCB with its miniaturized size and
solder the wires on the PCB to connect to the NUCLEO-F401RE. Refer to Figure 2. VL53L5CX mini PCB flying
lead connection to NUCLEO-F401RE.
Note: Two additional pull up resistors to I2C lines are required. The resistors value can be in range of [2.2K to 4.7K]
Figure 2. VL53L5CX mini PCB flying lead connection to NUCLEO-F401RE
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Connecting the breakout VL53L5CX-SATEL to a NUCLEO-F401RE board
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2Programming guidelines
The software project to make the sensor board work directly with the NUCLEO-F401RE is available on ST
website.
The user must download the package X-CUBE-TOF1, then install the X-CUBE-TOF1 SW pack in CubeMX.
The precompiled SW project is available under:
C:\Users\username\STM32Cube\Repository\Packs\STMicroelectronics\X-CUBE-TOF1\2.0.0\Projects\NUCLEO-
F401RE\Examples\CUSTOM\VL53L5CX_SimpleRanging.
A VL53L5CX-SATEL board project for NUCLEO-F4101RE is available in the directory tree as shown in the
following figure. The difference between ST common Expansion board X-NUCLEO-53L5A1 and this board is the
classification name. This project is part of the “CUSTOM” directory.
Figure 3. X-CUBE-TOF1 directory
The project is developed for IAR, Keil and STM32CubeIDE toolkits. The user can select any software
development kit and make it run.
Another method is to push directly the embedded software binary file. For such task, user can simply drag and
drop the binary file "VL..." located in the Binary directory, into the STM32 target represented by "NODE_F401RE"
in the PC file tree.
By default, the software programs the sensor in 4x4 mode. The result can be rendered using a serial tool (such as
Teraterm) to access the Nucleo COM port, as shown in Figure 4. Display rendering by default 4x4 mode.
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Programming guidelines
AN5717 - Rev 2 page 5/9
Figure 4. Display rendering by default 4x4 mode
This project embeds a bidirectional communication by UART. By default, some options can be triggered like the
resolution for example by typing “r”. It is switched to 8x8 mode as shown in Figure 5. Display rendering for 8x8
mode.
Figure 5. Display rendering for 8x8 mode
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Programming guidelines
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Contents
1Hardware connections guidelines..................................................2
1.1 Connecting the VL53L5CX-SATEL to a NUCLEO-F401RE board ......................2
1.2 Connecting the breakout VL53L5CX-SATEL to a NUCLEO-F401RE board ..............4
2Programming guidelines...........................................................5
Revision history ........................................................................7
Contents ...............................................................................8
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Contents
AN5717 - Rev 2 page 8/9
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© 2021 STMicroelectronics – All rights reserved
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