ADXL345 iMEMS® Accelerometer, 3 Axis Sensor Evaluation Board
The ADXL345 measures acceleration in three axes (X, Y, Z) and outputs digital data via either I²C or SPI interfaces. It is widely used in applications like tilt sensing, vibration monitoring, free-fall detection, and motion-based user interfaces. Its high resolution (up to 13-bit) allows it to detect very small changes in motion, making it suitable for both consumer electronics and industrial applications.
Key Features
3-axis acceleration measurement (X, Y, Z)
Selectable measurement ranges: ±2g, ±4g, ±8g, ±16g
High resolution (13-bit) with up to 4 mg/LSB sensitivity
Digital output interfaces: I²C and SPI
Low power consumption: ideal for battery-powered devices
Built-in motion detection functions:
Tap and double-tap detection
Free-fall detection
Activity and inactivity monitoring
Wide bandwidth range: supports various data rates for different applications
Operating voltage: typically 2.0V to 3.6V
Compact package: small LGA form factor suitable for space-constrained designs
Common Applications
Smartphones and tablets (screen rotation, motion sensing)
Wearable devices and fitness trackers
Gaming controllers
Robotics and drones
Vibration and shock monitoring systems
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