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Digital 3-Axis Accelerometer Sensor with High-Resolution Motion And Tilt Detection Capability
The Fermion ADXL345 Digital Triaxial Acceleration Sensor Breakout is a compact, low-power 3-axis accelerometer module designed for precise motion sensing, tilt measurement, vibration monitoring, and orientation detection applications. Based on the Analog Devices ADXL345 sensor, the module provides high-resolution 13-bit acceleration measurements with selectable ranges up to +/-16g. The sensor delivers digital output through both I2C and SPI interfaces, making it easy to integrate with Arduino, Raspberry Pi, ESP32, and other embedded platforms.
The ADXL345 is capable of measuring both static acceleration caused by gravity and dynamic acceleration resulting from movement, shock, or vibration. Advanced built-in functions such as activity detection, inactivity detection, tap sensing, double-tap recognition, and free-fall detection simplify application development by reducing software processing requirements. An integrated 32-level FIFO buffer minimizes host processor intervention, while low-power operating modes make the sensor ideal for battery-powered and wearable devices.
Key Features

3-Axis Accelerometer: Measures acceleration along X, Y, and Z axes.
High Resolution Measurement: 13-bit sensing resolution.
Wide Measurement Range: Selectable acceleration range up to +/-16g.
High Sensitivity: 4 mg per LSB resolution.
I2C and SPI Interface: Supports 3-wire and 4-wire SPI communication.
Tilt Sensing Capability: Detects inclination changes smaller than 1 degree.
Activity And Inactivity Detection: Motion monitoring with programmable thresholds.
Single and Double Tap Detection: Supports gesture-based applications.
Free-Fall Detection: Identifies falling events automatically.
32-Level FIFO Buffer: Reduces microcontroller processing requirements.
Low Power Operation: Suitable for portable and battery-powered devices.
Programmable Interrupt Outputs: Flexible event-driven system design.

Applications

Motion sensing systems
Tilt measurement devices
Robotics and automation
Wearable electronics
Vibration monitoring
Gesture recognition
Free-fall detection systems
Asset tracking devices
Human-computer interaction systems
Drone stabilization
Gaming controllers
Smart consumer electronics
Industrial monitoring equipment

Specification:

2.0-3.6VDC Supply Voltage
Ultra Low Power: 40uA in measurement mode, 0.1uA in standby@ 2.5V
Tap/Double Tap Detection
Free-Fall Detection
SPI and I2C interfaces

Package List:

Triple Axis Accelerometer ADXL345x1