Triple-Axis Accelerometer - ADXL345

Product Specification

ADXL345 Tripple Axis Accelerometer Board By ADIY

This a small, thin, low-power, 3-axis accelerometer with a high resolution up to 13-bit measurement at up to 16g. Digital output data is formatted as a 16-bit two’s complement and is accessible through either an SPI or I2C digital interface.

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.

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Product Details

ADXL345 Tripple Axis Accelerometer Board By ADIY is a small, thin, low-power, 3-axis accelerometer with a high resolution upto 13-bit measurement at up to 16g. Digital output data is format as a 16-bit two’s complement and is accessible through either an SPI or I2C digital interface.

ADXL345 Tripple Axis Accelerometer Board By ADIY is well suited for mobile device applications. ADXL345 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 the measurement of inclination changes less than 1.0°.

How ADXL345 Tripple Axis Accelerometer Board By ADIY Works:-

MEMS - Micro-Electro-Mechanical Systems

The sensor consists of a micro-machined structure on a silicon wafer. The structure is suspended by polysilicon springs which allow it to deflect smoothly in any direction when subject to acceleration in the X, Y, and/or Z-axis.
Deflection causes a change in capacitance between fixed plates and plates attached to the suspended structure. This change in capacitance on each axis is converted to an output voltage proportional to the acceleration on that axis.

Applications: ADXL345 Tripple Axis Accelerometer Board

Pointing devices.
Handsets.
Medical Instrumentation.
Gaming.
Industrial instrumentation.
Personal navigation devices.
Hard disk drive (HDD) protection.
Fitness equipment.
defense and aerospace.

Features : ADXL345 Tripple Axis Accelerometer Board

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
1. Fixed 10-bit resolution.
2. 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).