STMicroelectronics P-NUCLEO-6180X1

Overview

P-NUCLEO-6180X1 from STMicroelectronics is a Nucleo evaluation pack comprising the X-NUCLEO-6180A1 expansion board and an STM32 Nucleo-64 development board (e.g., NUCLEO-F401RE), enabling rapid prototyping of Time-of-Flight proximity sensing. It integrates the VL6180 optical module - featuring an 850 nm VCSEL emitter and single-chip ToF sensor - delivering absolute distance measurement up to 62 cm, ambient light rejection, and crosstalk compensation for cover glass. Designed for low-power, I²C-controlled ranging with two programmable GPIOs, it targets touchless UI and obstacle detection in portable devices.

For engineers reviewing the P-NUCLEO-6180X1 datasheet, P-NUCLEO-6180X1 pinout, P-NUCLEO-6180X1 application, or P-NUCLEO-6180X1 equivalent, this kit provides validated hardware abstraction, Arduino-compatible headers, ST-LINK/V2-1 debugger integration, and full firmware support via STM32CubeMX and X-CUBE-TOF1 middleware - critical for evaluating real-time ranging performance, interrupt-driven thresholding, and multi-sensor coexistence in space-constrained designs.

Technical Context

The P-NUCLEO-6180X1 implements a complete ToF-based proximity and ranging solution built around the VL6180 sensor IC and STM32F401RE MCU. The VL6180 performs direct time-of-flight measurement using an integrated 850 nm VCSEL and SPAD-based receiver, eliminating reflectance dependency. Its I²C interface (7-bit address 0x29) supports up to 400 kHz operation, while two GPIOs enable windowed ranging interrupts and threshold-triggered events without host polling.

The included STM32F401RE provides 84 MHz Cortex-M4 core, 512 KB Flash, and dedicated peripherals for sensor data acquisition, real-time processing, and USB virtual COM port output. Firmware leverages ST's X-CUBE-TOF1 software package, offering calibrated ranging APIs, ambient light compensation routines, and configurable sampling rates (1–100 Hz), ensuring deterministic latency and power trade-offs across battery-powered use cases.

Key Specifications

Availability

P-NUCLEO-6180X1 is available at Aetrix Electronics and suitable for smart faucet activation, tablet gesture control, robotic obstacle avoidance, and smartphone proximity wake-up requiring stable component supply and validated reference firmware.

Supply support for P-NUCLEO-6180X1 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, Switzerland, designing and manufacturing microcontrollers, sensors, power ICs, and analog components for industrial, automotive, and consumer applications.

The Nucleo ecosystem - including P-NUCLEO-6180X1 - is engineered to accelerate prototyping of intelligent sensing systems, specifically targeting low-power, high-accuracy ToF-based human-machine interfaces and environmental awareness in compact, cost-sensitive edge devices.

FAQ

What is the maximum measurable distance of the VL6180 sensor on this board?

The VL6180 sensor achieves up to 62 cm maximum ranging distance under ideal conditions (17% reflectivity target, controlled ambient light, no cover glass). Real-world performance varies with surface reflectance, ambient illumination, and optical path obstructions. The board's firmware includes calibration tools to optimize range accuracy per installation environment.

Does P-NUCLEO-6180X1 support multiple VL6180 sensors on one I²C bus?

Yes - the VL6180 supports I²C address change via GPIO configuration, allowing up to two sensors on a shared bus. The X-NUCLEO-6180A1 board exposes the necessary address-select pins, and STM32 firmware in X-CUBE-TOF1 includes multi-sensor initialization and synchronization routines for stereo ranging or zone-based detection.

Can the onboard STM32F401RE drive external peripherals while running ToF firmware?

Yes - the STM32F401RE retains 36 GPIOs, multiple UART/SPI/I²C peripherals, and DMA channels after ToF firmware initialization. Example applications include driving RGB LEDs for proximity feedback, communicating with BLE modules via UART, or controlling motor drivers via PWM outputs - all concurrently with real-time ranging.

Is the VL6180 module on this board RoHS-compliant and reflow-compatible?

Yes - the VL6180V1NR/1 module uses ECOPACK2-compliant LGA12 packaging and is qualified for standard lead-free reflow soldering (JEDEC J-STD-020). The X-NUCLEO-6180A1 board is assembled with RoHS-compliant materials and passes IPC-A-610 Class 2 inspection standards.