background image

1

Overview

The X-NUCLEO-53L1A2 expansion board features the VL53L1 long distance ranging sensor with multi target
detection, based on ST’s FlightSense, Time-of-Flight (ToF) technology.
It is compatible with the STM32 Nucleo development board family, and with the Arduino UNO R3 connector
layout.
Several ST expansion boards can be stacked through the Arduino connectors, which allows, for example, the
development of VL53L1 applications with Bluetooth or Wi-Fi interfaces.
The X-NUCLEO-53L1A2 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
VL53L1 and the cover glass.

Two cover windows to simulate the integration of the VL53L1 into the customer’s final product.

Two VL53L1 breakout boards which can be plugged onto the X-NUCLEO-53L1A2 expansion board or
connected through flying wires to the X-NUCLEO-53L1A2 expansion board.

Two 10-pin connectors to enable the customer to connect the two breakout boards onto the X-
NUCLEO-53L1A2 expansion board.

Note:

The VL53L1 is delivered with a liner to prevent potential foreign material from penetrating inside the module
holes during the assembly process. This liner must be removed at the latest possible step during final assembly,
before module calibration.

Table 1. 

Ordering information

Order code

Description

X-NUCLEO-53L1A2

STM32 Nucleo expansion board - spacers and glass - two breakout boards

UM2759

Overview

UM2759

 - 

Rev 2

page 3/18

Summary of Contents for X-NUCLEO-53L1A2

Page 1: ...ation the X NUCLEO 53L1A2 expansion board is delivered with a holder in which three different height spacers of 0 25 mm 0 5 mm and 1 mm can be fitted with the cover glass above the spacer The height s...

Page 2: ...Figure 1 X NUCLEO 53L1A2 expansion board spacers cover glass and breakout boards UM2759 UM2759 Rev 2 page 2 18...

Page 3: ...d the cover glass Two cover windows to simulate the integration of the VL53L1 into the customer s final product Two VL53L1 breakout boards which can be plugged onto the X NUCLEO 53L1A2 expansion board...

Page 4: ...Table 2 Document references Description DocId VL53L1 datasheet DS11786 X NUCLEO 53L1A2 data brief DB4214 P NUCLEO 53L1A2 data brief DB4261 X CUBE 53L1A2 data brief DB4252 UM2759 Document references U...

Page 5: ...ibes the X NUCLEO 53L1A2 expansion board features and provides useful information for understanding the electrical characteristics Figure 2 X NUCLEO 53L1A2 expansion board schematic diagram UM2759 X N...

Page 6: ...NUCLEO 53L1A2 expansion board and STM32 Nucleo development board are connected through the Arduino UNO R3 connectors CN5 CN6 CN8 and CN9 as shown in Figure 3 X NUCLEO 53L1A2 expansion board connector...

Page 7: ...ot used GPIO1 5 INT PC1 1 By default not used interrupt signal from VL53L1 on board soldered device 6 NC PC0 Not used 1 Depends on STM32 Nucleo board solder bridges see details in Section Solder drop...

Page 8: ...PB4 5 INT_R PB5 By default not used interrupt signal from optional VL53L1 right breakout board 1 4 NC PB3 Not used 3 INT_R PA10 By default not used interrupt signal from optional VL53L1 right breakout...

Page 9: ...3 2 Electrical schematic Figure 4 X NUCLEO 53L1A2 expansion board schematic VL53L1 VL53L1 VL53L1 application VL53L1 Can be NC or grounded UM2759 Electrical schematic UM2759 Rev 2 page 9 18...

Page 10: ...10 F X5R 6 3 V Output voltage decoupling C9 10 F X5R 6 3 V Input voltage decoupling R35 49 9 k Feedback resistor bridge to set the output voltage to 2 8 V R43 20 k U20 LD39050PUR ST Output programmabl...

Page 11: ...eloper wants to connect breakout boards see Figure 5 Interrupt configurations to the X NUCLEO 53L1A2 expansion board the VL53L1 interrupt of the left breakout board can be output on the CN5 D9 U10 fit...

Page 12: ...renced to VCCB B port supply voltage Input output 2 Referenced to VCCB Input output 3 Referenced to VCCB Input output 4 Referenced to VCCB Input output 5 Referenced to VCCB Input output 6 Referenced t...

Page 13: ...3L1 mini PCB The VL53L1 breakout board can be directly plugged onto the X NUCLEO 53L1A2 expansion board through the two 10 pin connectors or connected to the board through flying leads When connected...

Page 14: ...Figure 9 VL53L1 mini PCB flying lead connection to X NUCLEO 53L1A2 expansion board UM2759 VL53L1 breakout board UM2759 Rev 2 page 14 18...

Page 15: ...is designed to remain within Class 1 laser safety limits under all reasonably foreseeable conditions including single faults in compliance with the IEC 60825 1 2014 third edition The laser output rem...

Page 16: ...n history Table 6 Document revision history Date Version Changes 10 Sep 2020 1 Initial release 23 Apr 2021 2 Updated Figure 2 X NUCLEO 53L1A2 expansion board schematic diagram UM2759 UM2759 Rev 2 page...

Page 17: ...on 6 3 2 Electrical schematic 9 3 3 List of materials 10 3 4 Solder drop configurations 11 3 5 Integrated device pinning 12 4 VL53L1 breakout board 13 5 Safety 15 5 1 Electrostatic precaution 15 5 2 L...

Page 18: ...ts and ST assumes no liability for application assistance or the design of Purchasers products No license express or implied to any intellectual property right is granted by ST herein Resale of ST pro...

Reviews: