The ADXL345 from Analog Devices is a triple-axis digital accelerometer with both I2C and SPI interfaces. This breakout board includes an on-board 3.3V regulator and logic-level shifting, making it easy to interface with any 3.3V or 5V microcontroller including Arduino.

Measure acceleration across three axes (X, Y, Z) with selectable sensitivity ranges of ±2g, ±4g, ±8g, or ±16g. Lower ranges provide finer resolution for slow movements, while higher ranges are suited for high-speed motion tracking.

Key Features

• Triple-Axis Measurement – X, Y, and Z acceleration sensing
• Selectable Range – ±2g, ±4g, ±8g, or ±16g sensitivity
• Dual Digital Interface – I2C and SPI supported
• On-Board Regulator – 3.3V regulator with output pin, accepts up to 5V input
• Logic-Level Shifting – Works with both 3.3V and 5V microcontrollers
• Mounting Holes – Two 2.5mm (0.1") holes for easy attachment

Ideal For

• Motion and tilt sensing projects
• Vibration monitoring and impact detection
• Robotics and vehicle tracking
• Arduino and microcontroller-based projects

Package Contents

• 1× ADXL345 triple-axis accelerometer breakout (fully assembled and tested)
• 1× 9-pin 0.1" standard header strip

Resources

• Adafruit ADXL345 Tutorial