STMicroelectronics X-NUCLEO-53L1A1

Overview

X-NUCLEO-53L1A1 from STMicroelectronics is an expansion board for STM32 Nucleo development platforms (NUCLEO-F401RE, NUCLEO-L476RG), integrating two VL53L1X Time-of-Flight long-distance ranging sensors with Arduino UNO R3 pin-compatible headers, 0.25–1 mm configurable air-gap spacers, and dual 10-pin breakout connectors for sensor evaluation in industrial proximity sensing and robotics navigation.

For engineers reviewing the X-NUCLEO-53L1A1 datasheet, X-NUCLEO-53L1A1 pinout, X-NUCLEO-53L1A1 application, or X-NUCLEO-53L1A1 equivalent, this board delivers production-ready ToF sensor integration with Class 1 laser compliance, STM32 HAL/LL driver support, GUI-based distance visualization, and stackable Arduino-layout expansion for multi-sensor fusion prototyping.

Technical Context

The X-NUCLEO-53L1A1 implements a dual-sensor ToF evaluation platform using VL53L1X modules, each featuring 400 cm maximum ranging distance, 1 mm resolution, and ambient light immunity up to 100 klux. It interfaces via I²C (standard mode, 100 kHz) and supports independent sensor addressing through hardware jumpers.

Board-level design includes dedicated cover glass holders with three precision spacers (0.25 mm, 0.5 mm, 1 mm) to emulate real-world optical air gaps, and breakout-compatible mini-PCBs enabling direct integration into end devices after prototyping.

Key Specifications

Availability

X-NUCLEO-53L1A1 is available at Aetrix Electronics and suitable for industrial automation commissioning, robotics obstacle avoidance, smart building occupancy sensing, and embedded ToF sensor validation requiring stable component supply and full software toolchain support.

Supply support for X-NUCLEO-53L1A1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, sensors, power management ICs, and analog components for industrial, automotive, and consumer applications.

The X-NUCLEO-53L1A1 belongs to ST's Nucleo ecosystem expansion board product line, engineered to accelerate prototyping of time-of-flight sensing solutions with plug-and-play compatibility across STM32 MCU families and third-party interface modules.

FAQ

Does the X-NUCLEO-53L1A1 require external firmware or drivers?

No. ST provides complete software support including STM32CubeMX-compatible HAL drivers, X-CUBE-TOF1 middleware, and a Windows-based GUI application for real-time distance visualization and sensor configuration. All code examples and binaries are hosted on st.com under "TOOLS AND SOFTWARE > Ecosystems".

Can both VL53L1X sensors operate simultaneously without interference?

Yes. Each VL53L1X sensor has independently configurable I²C addresses via onboard jumpers, allowing concurrent operation and synchronized or staggered measurement sequences. The board layout ensures optical isolation between sensors when cover windows are installed.

Is the X-NUCLEO-53L1A1 compatible with NUCLEO boards beyond F401RE and L476RG?

Yes - it is mechanically and electrically compatible with all STM32 Nucleo boards featuring Arduino UNO R3 headers and compatible I²C voltage levels (3.3 V logic). Verified operation includes NUCLEO-G071RB, NUCLEO-H743ZI2, and NUCLEO-WB55RG, subject to HAL driver availability.

What mechanical options exist for integrating the VL53L1X sensors into custom enclosures?

The board includes detachable VL53L1X mini-PCBs that can be separated from the main breakout carrier. These compact modules (10 mm × 10 mm) retain full functionality and are designed for direct mounting into customer end-products using flying leads or custom flex PCBs.