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Accelerometer ADXL345 3-Axis Digital Gravity Sensor Module

Accelerometer ADXL345 3-Axis Digital Gravity Sensor Module

The ADXL345 is a compact, thin, low-power, 3-axis MEMS accelerometer that provides high-resolution (13-bit) measurements at up to ±16g. It outputs 16-bit two's complement data via a digital interface—either I2C or SPI (3- or 4-wire). This makes it ideal for a wide range of motion- and tilt-sensing applications.

Its high resolution of 4 mg/LSB enables detection of inclination changes less than 1.0°, making it suitable for precise motion tracking, orientation measurement, and vibration detection.

Package Includes:

  • 1 x ADXL345 3-Axis Digital Accelerometer Module

15.75 AED 15.75 AED Tax Included
15.75 AED Tax Included

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Features:

  • 3-axis acceleration sensing with ±2g, ±4g, ±8g, and ±16g ranges
  • 13-bit high resolution output
  • Digital output accessible via I2C or SPI
  • Low power consumption: 40µA in measurement mode, 0.1µA in standby (@2.5V)
  • Tap/double tap detection, free-fall detection
  • Wide voltage support (3V to 6V)
  • Compact PCB with double gold-plated contacts

Specifications:

Parameter Value
Chip ADXL345
Interface I2C / SPI
Measurement Range ±2g / ±4g / ±8g / ±16g
Resolution 4 mg/LSB
Supply Voltage 3V – 6V
Operating Current 40µA (Measurement), 0.1µA (Standby)
Board Material Double gold-plated PCB

Pinout of the Module:

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

Applications:

  • Mobile device motion detection
  • Static tilt sensing via gravity acceleration
  • Dynamic acceleration detection (e.g., vibration, shock)
  • Robotics motion sensing and balance
  • HDD shock protection systems
  • Game controllers and gesture recognition
  • Smart vehicles and wearable tech

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