Description
ADXL345 Triple-Axis Accelerometer Sensor Module
The ADXL345 Triple-Axis Accelerometer Sensor Module is a compact, low-power digital sensor designed to measure acceleration along three axes: X, Y, and Z. It can detect static gravity as well as dynamic acceleration, making it suitable for motion sensing, tilt detection, vibration monitoring, and orientation measurement.
Based on the ADXL345 accelerometer, this module provides digital measurement data through I2C or SPI communication interfaces. It can be connected to compatible development boards such as Arduino, ESP32, Raspberry Pi, and other microcontrollers.
Its small size and low power consumption make it ideal for robotics, wearable electronics, motion-controlled systems, and embedded applications.
Key Features
- Three-axis acceleration measurement (X, Y, and Z).
- Digital acceleration sensor.
- Selectable measurement ranges.
- Supports I2C and SPI communication.
- Low-power operation.
- Detects tilt, movement, and vibration.
- Suitable for Arduino, ESP32, and Raspberry Pi projects.
- Compact design for embedded applications.
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Digital Accelerometer Module |
| Sensor IC | ADXL345 |
| Measurement Axes | 3-Axis (X, Y, Z) |
| Measurement Range | ±2g, ±4g, ±8g, ±16g |
| Output Type | Digital |
| Resolution | Up to 13-bit |
| Communication Interface | I2C / SPI |
| I2C Address | 0x53 or 0x1D, depending on address pin configuration |
| Operating Voltage (IC) | 2.0V–3.6V |
| Module Supply Voltage | Depends on onboard regulator and level shifting |
| Features | Free-fall detection, activity/inactivity sensing, tap detection |
| Applications | Motion, tilt, and vibration sensing |
Applications
- Robotics and motion detection
- Tilt and orientation measurement
- Vibration monitoring
- Wearable electronics
- Drone and embedded system projects
- Fall and free-fall detection
- Gesture recognition experiments
- IoT monitoring systems
- Arduino and ESP32 projects
Important Notes
- The ADXL345 measures acceleration, not rotational angular velocity. Use a gyroscope when angular-rate measurement is required.
- Verify the module’s voltage compatibility before connecting it to a microcontroller.
- The sensor IC uses 3.3V-compatible logic; do not assume every breakout board supports direct 5V connections.
- Select the appropriate I2C or SPI communication mode in your code.
- The I2C address depends on the SDO/ALT ADDRESS pin configuration.
- Module pin labels and onboard components may vary between manufacturers.
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