ADXL345 Tripple Axis Accelerometer Board
The ADXL345 Triple Axis Accelerometer Board is a compact, low-power 3-axis accelerometer that offers high-resolution measurements (13-bit) of up to ±16g. The digital output data is formatted as 16-bit two’s complement and can be accessed via either an SPI (3- or 4-wire) or I2C digital interface.
This accelerometer is ideal for mobile device applications, measuring both static acceleration from gravity in tilt-sensing applications and dynamic acceleration due to motion or shock. Its high resolution (4 mg/LSB) allows for the detection of inclination changes as small as 1.0°.
The board includes several special sensing features: activity and inactivity sensing can detect motion presence or absence based on user-defined acceleration thresholds. Tap sensing recognizes single and double taps, while free-fall sensing detects when the device is falling. These functions can be linked to one of two interrupt output pins. Additionally, it features an integrated, patent-pending 32-level FIFO buffer for data storage, reducing the need for host processor intervention.
Low power modes facilitate intelligent motion-based power management, enabling threshold sensing and active acceleration measurement with minimal power consumption.
Note: This package does not include the Arduino board, you have to buy it separately.
Applications
- Pointing devices.
- Handsets.
- Medical Instrumentation.
- Gaming.
- Industrial instrumentation.
- Personal navigation devices.
- Hard disk drive (HDD) protection.
- Fitness equipment.
- defense and aerospace.
Features
Ultra-Low Power: 40µA in measurement mode, 0.1µA in standby@ 2.5V.
Free-Fall Detection.
Tap/Double Tap Detection.
Flexible interrupt modes mappable to either interrupt pin Measurement ranges selectable via serial command Bandwidth selectable via serial command
Wide temperature range (−40°C to 85°C).
10,000 g shock survival.
Support 5V/3.3V voltage input, onboard RT9161 power chip, lower pressure drop faster than 1117, the faster load speed of response, very suitable for high-noise power supply environment.
User-selectable resolution
Fixed 10-bit resolution.
Full resolution, where resolution increases with G range, up to 13-bit resolution at ±16 g (maintaining 4 mg/LSB scale factor in all G ranges).
Specifications:
| Input Supply Voltage (VDC) | 3.3 ~ 5 |
|---|---|
| Interface Type | I²C, SPI |
| Sensing Range | ±2g, ±4g, ±8g, ±16g |
| X-Axis Sensitivity | 28.6 LSB/g |
| Y-Axis Sensitivity | 31.2 LSB/g |
| Z-Axis Sensitivity | 34.5 LSB/g |
| Length (mm): | 20.5 |
| Width (mm): | 15.5 |
| Height (mm): | 3.5 |
| Weight (g): | 0.6 |
Package Includes
1 x ADXL345 Tripple Axis Accelerometer Board