ADXL345 3-axis I2C SPI accelerometer module.

Use with Klipper for 3D printer resonance measurement .

The ADXL345 module GY291 is a small, thin, low power, 3-axis accelerometer with high resolution (13-bit) measurement at up to ±16g.

Digital output data is formatted as 16-bit twos complement and is accessible through either a SPI (3- or 4-wire) or I2C digital interface.

It measures the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion or shock.

Its high resolution (4 mg/LSB) enables measurement of inclination changes less than 1.0°.

The ADXL345 is ideal to use for Measuring Resonances with Klipper based 3D printers.

Several special sensing functions are provided which can be mapped to 1 of 2 interrupt output pins.

  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. 

ADXL345 is very low power (25uA in measurement mode & 0.1uA in standby),

  and can be used to put your device into sleep mode when you're not using it

Onboard Voltage regulator allows 3v3 or 5v operation 

PCB size: 1.3 x 2.3 cm

Applications:

Hard disk drive (HDD) protection

Gaming and pointing devices

Personal navigation devices

Industrial instrumentation

Medical instrumentation

Handsets

ADXL345 Datasheet

https://www.analog.com/media/en/technical-documentation/data-sheets/ADXL345.pdf

More Info:

http://wiki.sunfounder.cc/index.php?title=ADXL345_3-Axis_Digital_Acceleration_of_Gravity_Tilt_Module_(GY-291)

Package Includes:

1x ADXL345 GY-291 3 Axis Accelerometer Module