ADXL345 Triple Axis Linear Accelerometer Module

The ADXL345 is a small, low-power, high-resolution 3-axis digital accelerometer capable of measuring acceleration in the X, Y, and Z directions. It is widely used in motion sensing, tilt detection, vibration monitoring, and orientation measurement applications. With I²C and SPI digital interfaces, it easily connects to microcontrollers like Arduino, Raspberry Pi, ESP32, and STM32.

 Key Features

• 3-Axis Acceleration Measurement (X, Y, Z)

• High Resolution: Up to 13-bit

• Selectable Measurement Range: ±2g, ±4g, ±8g, ±16g

• Low Power Consumption – ideal for battery-powered projects

• Digital Interfaces: I²C and SPI supported

• Built-in Motion Detection Functions

  • Free-fall detection

  • Activity & inactivity detection

  • Tap & double-tap detection

• Compact and Lightweight Design

? Technical Specifications

• Sensor Type: MEMS Accelerometer

• Operating Voltage: 3.0V – 5.0V (module dependent)

• Interface: I²C / SPI

• Resolution: 13-bit

• Sensitivity: 3.9 mg/LSB (±2g mode)

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

? Applications

• Motion and tilt sensing

• Robotics and balancing robots

• Smartphones and gaming controllers

• Vibration and shock detection

• Fall detection systems

• Inertial measurement units (IMU)

• IoT and wearable devices

 Why Choose ADXL345?

• Reliable and accurate motion sensing

• Easy to interface with popular development boards

• Multiple built-in detection features reduce coding complexity

• Proven sensor used in consumer and industrial products