Adafruit
Adafruit VL53L4CX Time of Flight Distance Sensor - ~1 to 6000mm
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The Adafruit VL53L4CX is the longest-range Time-of-Flight (ToF) distance sensor in ST's VL5 series, measuring from approximately 1 mm up to 6000 mm (6 metres...
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The Adafruit VL53L4CX is the longest-range Time-of-Flight (ToF) distance sensor in ST's VL5 series, measuring from approximately 1 mm up to 6000 mm (6 metres). It uses an invisible laser to precisely time how long light takes to bounce back, delivering accurate distance readings without the linearity issues of IR reflectance sensors.
A standout feature is multi-object detection — the VL53L4CX can identify when more than one object is in the sensing path and report both distances. The breakout includes a 2.8V regulator, level shifting, and two STEMMA QT / Qwiic connectors for solderless I2C wiring.
Key Features
- 6-Metre Range – Measures ~1 to 6000 mm, the longest range in the VL5 series
- Multi-Object Detection – Can identify two objects at different distances in the sensing path
- Narrow Sensing Cone – Focused invisible laser measures only the surface directly ahead
- I2C Interface – Based on ST's VL53L4CX API
- STEMMA QT / Qwiic Connectors – Two connectors for solderless plug-and-play I2C
- 3–5V Compatible – On-board 2.8V regulator and level shifting
Compared To Other ToF Sensors
- vs VL53L4CD – The VL53L4CD covers ~1–1300 mm for shorter range applications
- vs VL53L1X – The VL53L1X covers ~30–4000 mm; the VL53L4CX extends to 6000 mm and adds multi-object detection
- vs VL53L0X – The VL53L0X covers ~50–1200 mm with a simpler driver
Ideal For
- Long-range robotics obstacle detection and navigation
- Room occupancy and people counting with multi-object support
- Drone altitude hold and collision avoidance
- Industrial distance measurement
Package Contents
- 1× Adafruit VL53L4CX ToF Distance Sensor Breakout (assembled and tested)
Important: The Arduino driver for this chip does not support small-memory boards like the ATmega328 (Arduino Uno). You'll need a SAMD21, SAMD51, ESP32, or similar chip with at least 50K of available flash memory.
Note: STEMMA QT / Qwiic cable not included. Header can be soldered on for breadboard use.
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- API
- An API is a software interface that lets a program control hardware or features provided by the operating system. In this product, API support matters if you want your software to adjust display settings such as brightness or contrast automatically.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- ESP32
- ESP32 is a family of microcontroller modules with built-in wireless features such as Bluetooth and WiFi. Knowing this product uses an ESP32-based module helps explain how it provides wireless serial communication and firmware update features.
- Flash memory
- Non-volatile memory that keeps stored data even when power is removed. In this sensor, it matters because enrolled fingerprint templates can remain saved after the project is turned off.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- Qwiic
- Qwiic is a plug-in connector system for I2C devices that uses small 4-pin cables, so you can connect compatible sensors without soldering. It matters because your controller or adapter also needs Qwiic, or you will need a cable or breakout to wire it up.
- SAMD21
- The SAMD21 is a Microchip microcontroller used in many Arduino-compatible boards. It matters here because USB host library support can depend on the exact microcontroller on your mainboard.
- SAMD51
- A family of 32-bit microcontroller chips used to run the main program on a board. In this kit it handles the display-driving work, so it matters for performance when showing animations and graphics on an LED matrix.
- STEMMA
- A plug-and-cable connection system used on some maker electronics boards to make wiring simpler. If a product uses STEMMA, you need the matching cable or connector type to plug it in without soldering.
- STEMMA QT
- A small plug-in connector system for I2C boards that lets you connect compatible sensors and controllers without soldering. It matters because it can make wiring faster and less error-prone, especially when adding several small modules to a project.
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