New Product Introduction

STMicroelectronics VL53L1X FlightSense™

The VL53L1X - a new generation, long distance and fast ranging sensor based on ST’s FlightSense™ Time-of-Flight technology with programmable ROI

STMicroelectronics VL53L1X FlightSense™ sensor image

The VL53L1X is a state-of-the-art, Time-of-Flight (ToF), laser-ranging sensor, enhancing the ST FlightSense™ product family. It is the fastest miniature ToF sensor on the market with accurate ranging up to 4 m and fast ranging frequency up to 50 Hz.

Housed in a miniature and reflowable package, it integrates a SPAD receiving array, a 940 nm invisible laser Class1 emitter, and optics to achieve the best ranging performance in various ambient lighting conditions. It is easy to integrate into devices and allows creative ID as it can be hidden behind various cover window materials and colors.

Unlike conventional IR sensors, the VL53L1X uses ST’s latest generation ToF technology which allows absolute distance measurement whatever the target color and reflectance. It is also possible to program the size of the ROI on the receiving array, allowing the sensor FoV to be reduced.


  • Fully integrated miniature module
    • Size: 4.9x2.5x1.56 mm
    • Emitter: 940 nm invisible laser (Class1)
    • SPAD (single photon avalanche diode) receiving array with integrated lens
    • Low-power microcontroller running advanced digital firmware
  • Pin-to-pin compatible with the VL53L0X FlightSense™ ranging sensor
  • Fast and accurate long distance ranging
    • Up to 400 cm distance measurement
    • Up to 50 Hz ranging frequency
  • Maximum field-of-view (FoV): 27°
  • Programmable region-of-interest (ROI) size on the receiving array, allowing the sensor FoV to be reduced
  • Programmable ROI position on the receiving array, providing multizone operation control from the host
  • Easy integration
    • Single reflowable component
    • Can be hidden behind many cover window materials
    • Software driver and code examples for turnkey ranging
    • Single power supply (2v8) – I²C interface (up to 1 MHz)
    • Shutdown and interrupt pins

Terminals - an application exampleApplications

  • User detection (Autonomous low-power mode) to power on/off and lock/unlock devices like personal computers, laptops, and the IoT
  • Smart building and smart lighting (people user detection and gesture control)
  • Service robots and vacuum cleaners (long distance and fast obstacle detection)
  • Drones (landing assistance, hovering, ceiling detection)
  • Smart shelves and vending machines (goods inventory monitoring)
  • Drones - an application exampleSanitary (robust user detection whatever the target reflectance)
  • 1 D gesture recognition
  • Laser assisted auto-focus which enhances the camera AF system speed and robustness, especially in difficult scenes (low light and low contrast) and video focus tracking assistance


Block diagram

Block diagram of ST VL53L1X module

ST the P-NUCLEO-53L1A1 evaluation kitVL53L1X nucleo pack with X-NUCLEO-53L1A1 expansion board and STM32F401RE nucleo board

The P-NUCLEO-53L1A1 is a complete evaluation kit allowing anyone to learn, evaluate, and develop their application using the VL53L1X ToF, long-distance ranging sensor technology.

Related documents


P-NUCLEO-53L1A1 Evaluation Kit

VL53L1X nucleo pack with X-NUCLEO-53L1A1 expansion board and STM32F401RE nucleo board


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