Adafruit ADXL343 - Triple-Axis Accelerometer (+-2g/4g/8g/16g) w/ I2C/SPI

Key Features

• STEMMA QT/ Sparkfun Qwiic compatible - No need to solder (Updated in 2022)
• Nearly identical specs to ADXL345
• Budget Friendly sensor
• Perfect choice for interfacing with any 3V or 5V microcontroller (Raspberry Pi or Arduino Compatible)
• 3 axis measurements, X, Y, Z.

This is a triple-axis accelerometer with digital I2C and SPI interface breakout. It has a wide sensitivity range and high resolution, operating with an 10 or 13-bit internal ADC. Built-in motion detection features make tap, double-tap, activity, inactivity, and free-fall detection trivial. There's two interrupt pins, and you can map any of the interrupts independently to either of them.

The ADXL343 is nearly identical in specifications to the ADXL345, and code written for the '345 will likely work on the '343 as-is. This new accelerometer has some nice price improvements to stay within your budget.

The sensor has three axes of measurements, X Y Z, and pins that can be used either as I2C or SPI digital interfacing. You can set the sensitivity level to either +-2g, +-4g, +-8g or +-16g. The lower range gives more resolution for slow movements, the higher range is good for high speed tracking. The ADXL343 is the latest and greatest from Analog Devices, known for their exceptional quality MEMS devices.

Item Specifics
1 - Sensor Board
3-axis MEMs digital accelerometer
Input voltage: 2.0-3.6 V
User-selectable output resolution:
KEY_TAB KEY_TAB KEY_TAB +/- 2 gKEY_TAB (10-bit data, or +/- 512)
KEY_TAB KEY_TAB KEY_TAB +/- 4 gKEY_TAB (11-bit data, or +/- 1024)
KEY_TAB KEY_TAB KEY_TAB +/- 8gKEY_TAB (12-bit data, or +/- 2048)
KEY_TAB KEY_TAB KEY_TAB +/- 16 gKEY_TAB (13-bit data, or +/- 4096)
User-selectable data rate (0.1 .. 3200 Hz)
Hardware support for free-fall detection, tap detection, and activity/inactivity
HW support for both I2C and SPI, although I2C is recommended for ease of use.