Adafruit
ADXL345 - Triple-Axis Accelerometer (+-2g/4g/8g/16g) w/ I2C/SPI
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 regula...
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
Jargon buster
Plain-language definitions for the technical terms used above.
- 3.3V regulator
- A 3.3V regulator is a power circuit that provides a steady 3.3 volts for parts that need that supply voltage. On a breakout board, it can let the sensor run safely even when the connected microcontroller or power source uses a higher voltage.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- logic-level shifting
- Logic-level shifting converts digital signals between voltage levels, such as 3.3V and 5V. It matters because it helps the module connect safely to microcontrollers that use different logic voltages.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- SPI
- A fast serial communication bus often used for displays, memory cards, and sensors. It matters because SPI devices need specific pins for clock and data, plus a separate chip-select line for each device.
Find this product in
Brands
Sensors & Input
Related Tutorials
Free guides on learn.littlebird.com.au
