ADXL345 Triple Axis Accelerometer Board is a small, thin, low power, 3-axis accelerometer with high resolution (13-bit) measurement at up to ±16g. Digital output data is format as 16-bit twos complement and is accessible through either an SPI (3- or 4-wire) or I2C digital interface. The ADXL345 Triple Axis Accelerometer Board is well suited for mobile device applications. It measures the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion or shock. Its high resolution (4 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 and if the acceleration on any axis exceeds a user-set level. Tap sensing detects single and double taps. Free-fall sensing detects if the device is falling. These functions can be mapped to one of two interrupt output pins. An integrated, patent-pending 32-level first-in, first-out (FIFO) buffer can be used to store data to minimize host processor intervention. Low power modes enable intelligent motion-based power management with threshold sensing and active acceleration measurement at extremely low power dissipation. 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: Supply Voltage (V): 3.3 to 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 (gm): 0.6 Applications : Pointing devices. Handsets. Medical Instrumentation. Gaming. Industrial instrumentation. Personal navigation devices. Hard disk drive (HDD) protection. Fitness equipment. defense and aerospace. Package Includes : 1 x ADXL345 Tripple Axis Accelerometer Board.
