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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

Documents:

 

 

Features

  • LoRa SX1276 Wireless Module: Built around the SX1276 chip, the module employs LoRa technology, allowing for long-range data transmission and excellent penetration capabilities.
  • Configurable Output Power: The module's output power can be adjusted from +13 to +20 dBm (up to 100 mW) through software settings, providing flexibility in balancing communication distance and power consumption.
  • Low Power Consumption: During transmission, power consumption ranges from 50mA (+13 dBm) to 150mA (+20dBm), while in listening mode, it requires approximately 30mA, making it energy-efficient for battery-operated applications.
  • AES-128 Encryption Support: The module offers AES-128 encryption, ensuring secure and private data transmission, making it suitable for applications that require data confidentiality.
  • Multipoint Network Capabilities: It supports multipoint networks, allowing the establishment of individual nodes within the network for seamless and efficient communication.
  • Wide Power Supply Range: The module can be powered with a voltage range from 3V to 5V, making it compatible with various power sources and microcontrollers.

NOTE: It is important to solder a 16cm length of cable to the antenna pin before using it since not connecting any antenna can damage it. Optionally, the board has pads to solder an SMA connector with antenna thread.

Specifications

  • LoRa SX1276 wireless module with SPI interface (900 MHz)
  • Output power: +13 to +20 dBm up to 100 mW configurable by software
  • Consumption: 50mA (+13 dBm) to 150mA (+20dBm) in transmission, approx 30mA in listening
  • Supports AES-128 encryption
  • Supports multipoint networks with individual nodes
  • Power: 3 to 5V