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Accelerometer ADXL345 3-Axis Digital Gravity Sensor Module

Accelerometer ADXL345 3-Axis Digital Gravity Sensor Module

The ADXL345 is a 3-axis MEMS accelerometer with high resolution (13-bit) measurement up to ±16 g. It is compact, thin, and low-power. Digital output data is 16-bit two’s complement and accessible via SPI (3- or 4-wire) or I2C interface. The ADXL345 is ideal for measuring static gravity acceleration (tilt-sensing) as well as dynamic acceleration caused by motion or shock. Its high resolution (4 mg/LSB) allows detection of inclination changes of less than 1°.

Package Includes

  • 1 x ADXL345 3-Axis Accelerometer Module


15.75 AED 15.75 AED (Tax included)

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Features

  • High Resolution: 13-bit measurement, 4 mg/LSB
  • Measurement Range: ±2g, ±4g, ±8g, ±16g
  • Digital Interface: I2C or SPI
  • Low Power: 40µA in measurement mode, 0.1µA in standby @ 2.5V
  • Tap/Double Tap Detection: Detect single or double tap events
  • Free-Fall Detection: Detect when module experiences free fall
  • High Accuracy Tilt Detection: Can measure angle changes less than 1°
  • Compact Design: PCB board, double gold plated

Specifications

  • Chip: ADXL345
  • Communication Protocol: I2C / SPI
  • Measuring Range: ±2g / ±4g / ±8g / ±16g
  • Power Supply: 3V–6V
  • Output Data: 16-bit two’s complement
  • Ultra Low Power: 40µA in measurement mode, 0.1µA standby
  • Supports Tap/Double Tap and Free-Fall Detection
  • High-resolution measurement: 4 mg/LSB

Pinout of the Module

Nodemcu Adxl345 Accelerometer Interfacing With Nodemcu | Nodemcu

Pin Name Pin Configuration
GND Ground Pin
VCC Power Supply (3V–6V)
CS Chip Select (SPI mode)
INT1 Interrupt 1 Output
INT2 Interrupt 2 Output
SDO Serial Data Output
SDA Serial Data Input/Output (I2C)
SCL Serial Clock Line

Applications

The ADXL345 is suitable for mobile and embedded applications, including tilt detection, motion sensing, and shock detection. Typical uses include:

  • HDD shock protection
  • Vibration sensor
  • Game controller input
  • Robotics
  • Smart vehicles
  • Motion-sensing & orientation detection in general

Resources