lis2dux12-rs

Provides a platform-agnostic, no_std-compatible driver for the ST LIS2DUX12 sensor, supporting both I2C and SPI communication interfaces.

Sensor Overview

The LIS2DUX12 is a smart, digital, 3-axis linear accelerometer whose MEMS and ASIC have been expressly designed to combine the lowest current consumption possible with features such as always-on anti-aliasing filtering, a finite state machine (FSM) and machine learning core (MLC) with adaptive self-configuration (ASC).

The FSM and MLC with ASC deliver outstanding always-on, edge processing capabilities to the LIS2DUX12. The LIS2DUX12 MIPI I3C® slave interface and embedded 128-level FIFO buffer complete a set of features that make this accelerometer a reference in terms of system integration from a standpoint of the bill of materials, processing, or power consumption.

The LIS2DUX12 has user-selectable full scales of ±2g/±4g/±8g/±16g and is capable of measuring accelerations with output data rates from 1.6 Hz to 800 Hz.

The LIS2DUX12 has a dedicated internal engine to process motion and acceleration detection including free-fall, wake-up, single/double/triple-tap recognition, activity/inactivity, and 6D/4D orientation.

The LIS2DUX12 is available in a small thin plastic land grid array package (LGA) and it is guaranteed to operate over an extended temperature range from -40°C to +85 °C.

For more info, please visit the device page at https://www.st.com/en/mems-and-sensors/lis2dux12.html

Installation

Add the driver to your Cargo.toml dependencies:

[dependencies]
lis2dux12-rs = "0.1.0"

Or, add it directly from the terminal:

cargo add lis2dux12-rs

Usage

Include the crate and its prelude

use lis2dux12_rs as lis2dux12;
use lis2dux12::*;
use lis2dux12::prelude::*;

Create an instance

Create an instance of the driver with the new_<bus> associated function, by passing an I2C (embedded_hal::i2c::I2c) instance and I2C address, or an SPI (embedded_hal::spi::SpiDevice) instance, along with a timing peripheral.

An example with I2C:

let mut sensor = Lis2dux12::new_i2c(i2c, I2CAddress::I2cAddH, delay);

Check "Who Am I" Register

This step ensures correct communication with the sensor. It returns a unique ID to verify the sensor's identity.

let whoami = sensor.device_id_get().unwrap();
if whoami != ID {
    panic!("Invalid sensor ID");
}

Configure

See details in specific examples; the following are common api calls:

// Restore default configuration
sensor.init_set(Init::Reset).unwrap();

// Wait for reset to complete
while sensor.status_get().unwrap().sw_reset == 1 {}

// Set BDU and IF_INC recommended for driver usage
sensor.init_set(Init::SensorOnlyOn).unwrap();

// Set Output Data Rate
let md = Md {
    fs: Fs::_4g,
    bw: Bw::OdrDiv4,
    odr: Odr::_25hzLp,
};
sensor.mode_set(&md).unwrap();

License

Distributed under the BSD-3 Clause license.

More Information: http://www.st.com.

Copyright (C) 2025 STMicroelectronics