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3 Axis Digital Accelerometer(ADXL345)

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Weight : 5 g
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  • Description

Introduction

The ADXL345 is an ultralow power, small, thin, 3-axis accelerometer with high resolution(13-bit) measurement at up to ±16 g. it communicates with MCU in I2C or SPI communication type. The ADXL345 is well suited to measure the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion or shock. For its high resolution (4 mg/LSB), enable to measure the 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.

 

Technical data

Work voltage: 3 to 5V

Sensitivity:

X: 28.6 LSB/g

Y: 31.2 LSB/g

Z: 34.5LSB/g

 

Features

Ultra Low Power: 40uA in measurement mode, 0.1uA in standby@ 2.5V.

Tap/Double Tap Detection.

Free-Fall Detection.

SPI and I2C interfaces.

 

Application

Industrial instrumentation

Medical instrumentation

Hard disk drive(HDD) protection

 

Resource

Program

Datasheet

Schematic

 


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