- The ADXL345 is a small, thin, ultralow power, 3-axis accelerometer with high resolution (13-bit) measurement at up to ±16 g. Digital output data is formatted as 16-bit twos complement and is acces-sible through either a SPI (3- or 4-wire) or I2C digital interface.
- The ADXL345 is well suited for mobile device applications. It measures the static acceleration of gravity in tilt-sensing appli-cations, as well as dynamic acceleration resulting from motion or shock. Its high resolution (3.9 mg/LSB) enables measurement of inclination changes less than 1.0°.
- Several special sensing functions are provided. Activity and inactivity sensing detect the presence or lack of motion by comparing the acceleration on any axis with user-set thresholds. Tap sensing detects single and double taps in any direction. Free-fall sensing detects if the device is falling. These functions can be mapped individually to either of two interrupt output pins. An integrated, patent pending memory management system with a 32-level first in, first out (FIFO) buffer can be used to store data to minimize host processor activity and lower overall system power consumption.
- Low power modes enable intelligent motion-based power management with threshold sensing and active acceleration measurement at extremely low power dissipation.Features :
1 Main Chipset: ADXL345
2 Communication: IIC/SPI Communication Protocol
3 Measuring Ranging: ±2g±16g
4 Digital Output: SPI/IIC
5 3-axis, ±2g/±4g/±8g/±16g
6 Compact Accelemotor/Inclinometer
7 Working Voltage: 3V to 5V
8 Working Temperature: -40° to 85°
9 Working Current: 30uA
10 Low Power Consumption
11 Compatible with 51、AVR、Arduino