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Adxl345 Tripple Axis Accelerometer Module



DXL345 Tripple 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 a SPI (3- or 4-wire) or I2C digital interface.

The ADXL345 Tripple 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.

Specifications and Features:

  1. Voltage – Supply : 3.3 V/ 5V.
  2. Interface : I²C, SPI.
  3. Sensing Range : ±2g, 4g, 8g, 16g.
  4. Sensitivity:
  5. X : 28.6 LSB/g.
  6. Y : 31.2 LSB/g.
  7. Z : 34.5 LSB/g.
  8. Sensor Type : Accelerometer 3 Axis.
  9. Dimensions : 28 mm x 14 mm.
  10. Weight : 10 gm.
  11. Ultra Low Power: 40µA in measurement mode, 0.1µA in standby@ 2.5V.
  12. Free-Fall Detection.
  13. Tap/Double Tap Detection.
  14. Flexible interrupt modes mappable to either interrupt pin Measurement ranges selectable via serial command Bandwidth selectable via serial command
  15. Wide temperature range (−40°C to +85°C).
  16. 10,000 g shock survival.
  17. Support 5V/3.3V voltage input, on-board RT9161 power chip, lower pressure drop faster than the 1117, faster load speed of response, very suitable for high-noise power supply environment.
  18. User-selectable resolution
  19. Fixed 10-bit resolution.
  20. 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).

Applications :

  1. Pointing devices.
  2. Handsets.
  3. Medical instrumentation.
  4. Gaming.
  5. Industrial instrumentation.
  6. Personal navigation devices.
  7. Hard disk drive (HDD) protection.
  8. Fitness equipment.
  9. defense and aerospace.

Package Includes:

 1 x  ADXL345 Trippel Axis Accelerometer Module

 ADXL345 Accelerometer Module Pinout

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