P-NUCLEO-53L5A1
Data brief
VL53L5CX nucleo pack with X-NUCLEO-53L5A1 expansion board and
STM32F401RE nucleo board
Features
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VL53L5CX Time-of-Flight 8x8 multizone ranging sensor with wide field of view
expansion board (X-NUCLEO-53L5A1)
STM32F401RE nucleo board
0.25, 0.5, and 1 mm height spacers to simulate air gaps
Cover window to protect sensor from dust
Equipped with an Arduino UNO R3 connector
RoHS, CE, UKCA, and China RoHS compliant
Full system SW is supplied, including code examples and graphical user
interface (GUI). All this can be downloaded on www.st.com
Description
The P-NUCLEO-53L5A1 is a complete evaluation kit allowing anyone to learn,
evaluate, and develop their application using the VL53L5CX, Time-of-Flight 8x8
multizone ranging sensor with wide field of view (FoV).
The VL53L5CX is a state of the art, Time-of-Flight (ToF) multizone ranging sensor
enhancing the ST FlightSense product family. Housed in a miniature reflowable
package, it integrates a SPAD array, physical infrared filters, and diffractive optical
elements (DOE) to achieve the best ranging performance in various ambient lighting
conditions with a range of cover glass materials.
Multizone distance measurements are possible up to 8x8 zones with a wide 63 °
diagonal FoV which can be reduced by software. Each zone of the VL53L5CX is
measuring the distance of the target up to 4 meters, at maximum frequency of 60 Hz.
Thanks to ST Histogram patented algorithms, the VL53L5CX is able to detect
different objects within the FoV. The Histogram also provides immunity to cover glass
crosstalk beyond 60 cm.
The STM32 nucleo board, NUCLEO-F401RE, provides an affordable and flexible
way for users to try out new ideas and build prototypes with any STM32
microcontroller, choosing from the various combinations of performance, power
consumption, and features.
Device summary
Order code
P-NUCLEO-53L5A1
Description
X-NUCLEO-53L5A1
and NUCLEO-
F401RE boards
DB4509
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Rev 1
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June 2021
For further information contact your local STMicroelectronics sales office.
www.st.com
P-NUCLEO-53L5A1
Board descriptions
1
Board descriptions
1.1
NUCLEO-F401RE board
Information about NUCLEO-F401RE board can be found on www.st.com.
1.2
X-NUCLEO-53L5A1 expansion board
The X-NUCLEO-53L5A1 expansion board allows the user to test the VL53L5CX functionality and to program it,
which helps understand how to develop an application using the VL53L5CX. It integrates:
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3.3 V voltage regulator to supply the VL53L5CX on the expansion board
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the necessary connectivity for the application
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two satellite headers to control two additional VL53L5CX-SATEL breakout boards
The NUCLEO-F401RE board has to be programmed to control the X-NUCLEO-53L5A1 expansion board. The
required software is available on www.st.com.
X-NUCLEO-53L5A1 expansion board and the NUCLEO-F401RE board are connected through the Arduino
compatible connectors CN5, CN6, CN8, and CN9 (see the figure and tables below).
The Arduino connectors on the NUCLEO-F401RE board support the Arduino Uno Revision 3.
Figure 1.
X-NUCLEO-53L5A1 circuit diagram
DB4509
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Rev 1
page 2/9
P-NUCLEO-53L5A1
Optional VL53L5CX breakout boards
1.3
Optional VL53L5CX breakout boards
The VL53L5CX breakout boards can be directly plugged onto the X-NUCLEO-53L5A1 expansion board through
two 9-pin headers (see
Figure 2. Connecting the VL53L5CX breakout boards)
or they can be connected to the
expansion board by soldering the wires (see
Figure 3. VL53L5CX mini PCB connection to X-NUCLEO-53L5A1
expansion board).
Breakout boards can be purchased separately using the reference: VL53L5CX-SATEL (link to the page: https://
www.st.com/en/evaluation-tools/vl53l5cx-satel.html). In this pack, two breakout boards are provided.
When connected through flying leads, developers should break off the mini PCB from the breakout board and use
only the “VL53L5CX mini PCB” which is smaller and integrates more easily into the customer’s devices.
Figure 2.
Connecting the VL53L5CX breakout boards
DB4509
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Rev 1
page 3/9
P-NUCLEO-53L5A1
Optional VL53L5CX breakout boards
Figure 3.
VL53L5CX mini PCB connection to X-NUCLEO-53L5A1 expansion board
DB4509
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Rev 1
page 4/9
P-NUCLEO-53L5A1
Laser safety considerations
2
Laser safety considerations
The VL53L5CX contains a laser emitter and 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 the STMicroelectronic's recommended device settings are used and the operating conditions specified in the
datasheet are respected. The laser output power must not be increased and no optics should be used with the
intention of focusing the laser beam.
Figure 4.
Class 1 laser product label
DB4509
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Rev 1
page 5/9
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