ST X-NUCLEO-53L1A1 User Manual
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ST X-NUCLEO-53L1A1 User Manual

Long distance ranging tof sensor expansion board based on vl53l1x for stm32 nucleo
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UM2359
User manual
Getting started with X-NUCLEO-53L1A1 long distance ranging ToF
sensor expansion board based on VL53L1X for STM32 Nucleo
Introduction
This document provides detailed hardware information on the X-NUCLEO-53L1A1
expansion board. This expansion board is compatible with the STM32 Nucleo family and the
Arduino™ electronic boards. It is designed around the VL53L1X ranging sensor and is
based on the ST patented FlightSense™ technology.
To allow the user to validate the VL53L1X in an environment as close as possible to its final
application, the X-NUCLEO-53L1A1 expansion board is delivered with a holder in which
three different height spacers of 0.25, 0.5, and 1 mm can be fitted with the cover glass
above the spacer. The height spacers are used to simulate different air gap distances
between the VL53L1X sensor and the cover glass.
The X-NUCLEO-53L1A1 expansion board is delivered with two VL53L1X breakout boards.
Figure 1. X-NUCLEO-53L1A1 expansion board, spacers, cover glass, and breakout
boards
March 2018
DocID031498 Rev 1
1/17
www.st.com
17

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Summary of Contents for ST X-NUCLEO-53L1A1

  • Page 1 To allow the user to validate the VL53L1X in an environment as close as possible to its final application, the X-NUCLEO-53L1A1 expansion board is delivered with a holder in which three different height spacers of 0.25, 0.5, and 1 mm can be fitted with the cover glass above the spacer.

  • Page 2: Table Of Contents

    Document references ........3 X-NUCLEO-53L1A1 expansion board ......4 Overview .

  • Page 3: Overview

    UM2359 Overview Overview The X-NUCLEO-53L1A1 expansion board features the VL53L1X ranging sensor, 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 VL53L1X applications with Bluetooth or Wi-Fi interfaces.

  • Page 4: Nucleo-53L1A1 Expansion Board

    X-NUCLEO-53L1A1 expansion board UM2359 X-NUCLEO-53L1A1 expansion board This section describes the X-NUCLEO-53L1A1 expansion board features and provides useful information for understanding the electrical characteristics. Figure 2. X-NUCLEO-53L1A1 expansion board schematic diagram Overview The board allows the user to test the VL53L1X functionality, to program it and to understand how to develop an application using the VL53L1X.
  • Page 5 Arduino™ UNO R3 connectors CN5, CN6, CN8, and CN9 as shown Figure 3 and as described in Table 3 Table The X-NUCLEO-53L1A1 must be plugged onto the STM32 Nucleo development board through the Arduino™ UNO R3 connectors Figure 3. X-NUCLEO-53L1A1 expansion board connector layout DocID031498 Rev 1 5/17...
  • Page 6 X-NUCLEO-53L1A1 expansion board UM2359 Table 3. Left Arduino connector VL53L1X X-NUCLEO-53L1A1 number board number name expansion board function IOREF Not used RESET Power 3.3 V supply CN6 power Not used Not used Interrupt signal from GPIO1 VL53L1X on board soldered...
  • Page 7 UM2359 X-NUCLEO-53L1A1 expansion board Table 4. Right Arduino connector VL53L1X X-NUCLEO-53L1A1 expansion number board number name board function I2C1_SCL I2C1_SDA AVDD Not used INT_L Not used CN5 digital By default not used, interrupt signal GPIO1_L INT_L* from optional VL53L1X left breakout...

  • Page 8: Electrical Schematic And List Of Materials

    X-NUCLEO-53L1A1 expansion board UM2359 Electrical schematic and list of materials 3.2.1 Electrical schematic Figure 4. X-NUCLEO-53L1A1 expansion board schematic 8/17 DocID031498 Rev 1...

  • Page 9: List Of Materials

    UM2359 X-NUCLEO-53L1A1 expansion board 3.2.2 List of materials Table 5. List of materials Components Value Reference Supplier Comments VL53L1X application C1, C3 100 nF Supply voltage decoupling 4.7 µF X5R - 6.3 V 47 k Interrupt output pull up 47 k...

  • Page 10: Solder Drop Configurations

    GPIO expander C14, C15 100 nF Supply decoupling capacitor Solder drop configurations Solder drops allow the following configurations of the X-NUCLEO-53L1A1 expansion board: • If the developer wants to make an application with several expansion boards stacked and there is: –...
  • Page 11 UM2359 X-NUCLEO-53L1A1 expansion board Figure 5. Interrupt configurations DocID031498 Rev 1 11/17...

  • Page 12: Integrated Device Pinning

    X-NUCLEO-53L1A1 expansion board UM2359 Integrated device pinning Figure 6. Integrated device pinning 12/17 DocID031498 Rev 1...

  • Page 13: Vl53L1X Breakout Board

    The VL53L1X breakout boards are supplied at 2.8 V by the regulator present on the X-NUCLEO-53L1A1 expansion board. Figure 7. VL53L1X breakout board schematic The VL53L1X breakout boards can be directly plugged onto the X-NUCLEO-53L1A1 expansion board through the two 10-pin connectors or connected to the board through flying leads.
  • Page 14 VL53L1X breakout board UM2359 Figure 8. VL53L1X mini PCB flying lead connection to X-NUCLEO-53L1A1 expansion board 14/17 DocID031498 Rev 1...

  • Page 15: Safety

    Electrostatic precaution Figure 9. Electrostatic logo The user should exercise electrostatic precautions, including using ground straps when using the X-NUCLEO-53L1A1 expansion board. Failure to prevent electrostatic discharge could damage the device. Laser considerations The VL53L1X contains a laser emitter and corresponding drive circuitry. The laser output 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).

  • Page 16: Revision History

    Revision history UM2359 Revision history Table 6. Document revision history Date Revision Changes 07-03-2018 Initial release 16/17 DocID031498 Rev 1...
  • Page 17 ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement.

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