ADXL345 3-axis Digital Gravity Sensor is a high-resolution MEMS accelerometer module widely used for motion sensing, tilt detection, and shock monitoring in electronics projects. The GY-291 breakout board provides easy integration with microcontrollers like Arduino, ESP8266, and Raspberry Pi via I²C or SPI interface. BDTronics supplies original ADXL345 modules in Bangladesh for robotics, IoT, industrial monitoring, and DIY electronics projects.

This low-power accelerometer module is ideal for tilt-sensing, motion tracking, gaming interface detection, free-fall monitoring, and industrial shock detection. Its integrated features such as tap/double-tap detection, 32-level FIFO buffer, and selectable sensitivity ranges make it perfect for accurate and responsive applications.

Features:

• 3-axis acceleration measurement: X, Y, Z axes

• High resolution up to 13-bit (4mg/LSB)

• Selectable sensitivity ranges: ±2g, ±4g, ±8g, ±16g

• Digital interfaces: I²C and SPI (3 or 4-wire)

• Ultra-low power consumption: ~40µA in measurement mode, ~0.1µA standby

• Built-in tap, double-tap, and free-fall detection

• Integrated 32-level FIFO buffer for reduced microcontroller load

• Operating voltage: 2.0V to 3.6V (often 5V regulated on breakout boards)

• Compact dimensions for easy PCB mounting

• Compatible with Arduino, ESP8266, Raspberry Pi, and other microcontrollers

• Supplied by BDTronics Bangladesh for electronics projects

How to Use:

• Connect module to microcontroller via I²C (SDA, SCL) or SPI (MISO, MOSI, SCK, CS)

• Provide 3.3V–5V power depending on breakout board specification

• Initialize sensor using standard ADXL345 libraries (Arduino, Python, MicroPython)

• Configure sensitivity range, data rate, and interrupts as needed

• Read acceleration data along X, Y, Z axes for tilt, motion, or free-fall detection

• Use tap/double-tap interrupts for user input or interactive applications

• Store data in FIFO buffer for batch processing or reduced CPU load

Typical Applications:

• Mobile devices: Tilt and orientation sensing

• Robotics: Motion tracking, balancing robots, position monitoring

• Gaming: Tap/double-tap detection for user input

• Industrial: Shock, vibration, and free-fall monitoring

• IoT devices: Motion detection for automation systems

• Educational projects: MEMS sensor learning and prototyping

Common Modules:

• GY-291: Standalone ADXL345 breakout board

• GY-801/10-DOF: Includes ADXL345 with gyro, compass, and pressure sensor

• 6-DOF combos: ADXL345 paired with ITG-3200 gyro for full motion tracking

Specifications:

• Sensor Type: 3-Axis MEMS Accelerometer

• Model: ADXL345

• Interface: I²C, SPI (3 or 4-wire)

• Sensitivity Range: ±2g, ±4g, ±8g, ±16g selectable

• Resolution: 13-bit, 4mg/LSB

• Power Supply: 2.0V–3.6V (5V regulated on breakout)

• FIFO Buffer: 32-level integrated

• Dimensions: Compact PCB module

• Features: Tap/double-tap detection, free-fall detection, low power mode

• Compatible With: Arduino, ESP8266, Raspberry Pi, Microcontrollers

adxl345 3-axis accelerometer, adxl345 imu module, adxl345 gy-291, digital gravity sensor module, mems accelerometer adxl345, tilt sensor module, motion detection sensor adxl345, free-fall detection sensor, arduino adxl345 module, raspberry pi adxl345, esp8266 accelerometer sensor, adxl345 i2c spi interface, adxl345 sensor bdtronics, motion tracking module bangladesh, tap double-tap sensor, low power accelerometer, 3-axis digital accelerometer, adxl345 electronics project, bdtronics imu module