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ST VL53L3CX User Manual

ST VL53L3CX
25 pages
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Introduction
VL53L3CX is a Time-of-Flight (ToF) ranging sensor module.
The purpose of this user manual is to describe the integration model and the set of functions to call to get ranging data using the
VL53L3CX bare driver.
VL53L3CX Time-of-Flight ranging module with multi object detection
UM2778
User manual
UM2778 - Rev 1 - September 2020
For further information contact your local STMicroelectronics sales office.
www.st.com
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ST VL53L3CX Specifications

General IconGeneral
Product NameVL53L3CX
Measurement RangeUp to 3 meters
Sensing RangeUp to 3 meters
Operating RangeUp to 3 meters
Field of View (FoV)25 °
Operating Voltage2.6 V to 3.5 V
Supply Voltage2.6 V to 3.5 V
InterfaceI2C
Dimensions4.9 x 2.5 x 1.56 mm
TypeTime-of-Flight (ToF) sensor
Temperature Range-20°C to 70 °C
Operating Temperature-20°C to 70 °C
Laser SafetyClass 1 laser product (IEC 60825-1:2014)

Summary

VL53L3CX System Overview

Ranging Functional Description

Ranging Sequence

Describes the handshake mechanism and interrupt management for sequential ranging.

Timing Considerations

Details timing aspects of ranging, including handshake delay and timing budgets.

Bare Driver Basic Functions Description

Bare Driver

Explains the flow of driver functions for ranging measurements and calibration.

System Initialization

Details API function calls for system initialization before measurement.

Ranging with VL53L3CX

Start a Measurement

Initiates a ranging measurement using the VL53LX_StartMeasurement() function.

Wait for a Result: Polling or Interrupt

Methods to determine when a measurement result is available.

Ranging Data Structures

Defines the structures used to hold ranging data, including target specific results.

Additional Driver Functions Description

Timing Budget

Configures the time allocated for a single range measurement.

Distance Mode

Optimizes internal settings based on requested ranging distance.

Tuning Parameters

Allows fine-tuning of sensor parameters for specific use cases.

Coverglass Smudge Detection

Enables detection and correction of smudge effects on the coverglass.

I2C Address

Explains how to set a different I2C address for multiple devices.

Customer Factory Calibration Functions

RefSPAD Calibration

Calibrates the number of SPADs to optimize device dynamic range.

Crosstalk Calibration

Estimates and compensates for crosstalk due to coverglass reflection.

Offset Calibration

Measures and applies offset caused by soldering or coverglass.

Customer Repair Shop Calibrations

Bare Driver Errors and Warnings

Revision History

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