ADXL343 3-Axis Digital Accelerometer

Overview

The ADXL343 is a 3-axis digital accelerometer from Analog Devices. It measures acceleration on the X, Y, and Z axes and supports selectable measurement ranges of 2 g, 4 g, 8 g, and 16 g. It is commonly used in embedded systems where motion, tilt, shock, or vibration data needs to be read over a digital interface.

Why Choose This Part

The ADXL343 is a practical choice when you need a compact digital accelerometer with straightforward integration in embedded designs. Its selectable measurement ranges make it adaptable to both low-g motion sensing and higher-g shock events. Because it is a digital part, it simplifies routing and reduces sensitivity to analog front-end design compared with analog accelerometers.

Applications

Getting Started

Use a microcontroller board with an I2C or SPI interface and start by wiring power, ground, and the chosen digital bus lines. Analog Devices and community example code are commonly used to validate register setup, data reading, and measurement range configuration. For quick prototyping, pair it with an Arduino, Raspberry Pi, or other MCU board and verify the output by reading raw axis data before adding calibration and filtering.

Also Consider

LIS3DH STMicroelectronics - A widely used low-power 3-axis accelerometer with similar embedded motion-sensing use cases.

ADXL345 Analog Devices - A closely related ADXL family accelerometer that is often considered for similar digital motion-sensing designs.

LIS2DH12 STMicroelectronics - Another common 3-axis accelerometer option for embedded motion and vibration sensing.