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ADXL345 3 Axis Accelerometer Module

Key Features & Specifications:

  • Axis: 3-axis (X, Y, Z).
  • Range: Selectable ±2g, ±4g, ±8g, or ±16g.
  • Resolution: High-resolution 13-bit (3.9 mg/LSB) for precise tilt detection (<1° changes).
  • Interfaces: I2C (default address 0x53) or SPI (3-wire/4-wire).
  • Power: Ultra-low power, ideal for battery-operated devices (e.g., 23µA in measurement mode).
  • Functions: Tilt sensing, activity/inactivity detection, tap/double-tap sensing, free-fall detection.
  • Compatibility: Works with Arduino, Raspberry Pi, ESP32, etc., using readily available libraries.

Common Uses:

  • Mobile Devices: Tilt-sensing, orientation detection.
  • Robotics: Navigation, stabilization.
  • Gaming: Motion-controlled input.
  • IoT: Energy-efficient motion monitoring.
  • Hobby Projects: Gesture recognition, vibration monitoring.

How it Works:

It measures both static gravitational acceleration (for tilt) and dynamic acceleration from movement or impact, outputting 16-bit digital data that microcontrollers interpret to understand orientation and motion

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