ADXL345 3-Axis Digital Accelerometer Sensor Module

ADXL345 3-Axis Digital Accelerometer Sensor Module

The ADXL345 is a compact, low-power, high-performance 3-axis digital accelerometer designed for precise motion and tilt sensing in a wide range of electronic projects. Ideal for applications such as gesture recognition, vibration monitoring, and device orientation detection, this sensor offers robust performance while consuming minimal power—making it a perfect fit for portable and battery-powered systems.

the ADXL345 can easily communicate with popular microcontrollers and development boards like Arduino, ESP32, Raspberry Pi, and more. With measurement ranges selectable from ±2g to ±16g and built-in high-resolution 13-bit output, it delivers accurate and stable readings even in dynamic conditions.

Applications:

• Motion sensing and gesture recognition

• Tilt and orientation detection

• Vibration and shock monitoring

• Wearable electronics

• Robotics and automation systems

• Mobile device navigation

Key Features & Technical Specifications:

• Sensor Type: 3-Axis Digital Accelerometer

• Measurement Range: ±2g / ±4g / ±8g / ±16g

• Output Interface: I²C (default) and SPI (configurable)

• Operating Voltage: 3.3V – 5V

• Communication: the IIC / SPI communication protocol

• Resolution: 13-bit

• Power Consumption: Low power consumption (as low as 23 μA in standby mode)

• Operating Temperature: -40°C to +85°C

• Built-in Features:

  • Tap/double tap detection

  • Activity/inactivity detection

  • Free-fall detection

• Dimensions: Approx. 20mm x 15mm

• Mounting: Easy breadboard-friendly pin layout

Integration Tips:

• Use standard I2C libraries (like Adafruit_ADXL345 or SparkFun_ADXL345) for quick setup on Arduino and other platforms.

• Calibrate the sensor in your specific environment for optimal accuracy.

• Ensure stable power and secure wiring for noise-free measurements.