Description : 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 : 1Main Chipset: ADXL345 2Communication: IIC/SPI Communication Protocol 3Measuring Ranging: 2g16g 4Digital Output: SPI/IIC 53-axis, 2g/4g/8g/16g 6Compact Accelemotor/Inclinometer 7Working Voltage: 3V to 5V 8Working Temperature: -40 to 85 9Working Current: 30uA 10Low Power Consumption 11Compatible with 51AVRArduino
More details will be shown step by step in the test file. Download the Arduino Library for