ST VL53L1X - User Manual

Introduction
This user manual explains how to use a VL53L1X long-distance ranging Time-of-Flight (ToF) sensor to count people crossing a
specific predefined area, like a meeting room entrance or a particular location in a corridor. It also describes an algorithm used
to count the people. The algorithm is provided as an example and can be downloaded from st.com, in the VL53L1X embedded
SW section, under the reference STSW-IMG010.
In addition, this document presents the details of a counting application where a sensor is set on the top, not the side, of the
area to be tracked.
Counting people with the VL53L1X long-distance ranging Time-of-Flight sensor
UM2600
User manual
UM2600 - Rev 2 - December 2020
For further information contact your local STMicroelectronics sales office.
www.st.com

Summary

Document Introduction

Acronyms and Abbreviations Glossary

System Overview and Functionality

Person Counting Algorithm Details

Hysteresis Principle for Detection

VL53 L1 X Sensor Configuration Guide

Ensuring Setup Reliability

Floor Ranging for Threshold Calibration

Defines the threshold by measuring floor distances to ensure setup reliability and accurate counting.

Optimizing Zone Overlap for Detection

Optimizes algorithm by ensuring person detection sequentially across zones for accurate tracking.

Scenario: Long Black Hair Impact

Software and Hardware Package

ST VL53L1X Specifications

General

Brand	ST
Model	VL53L1X
Category	Accessories
Language	English