used for input shaper in klipper

The ADXL345 is 3-axis accelerometer with high resolution  measurement at up to +/-16 g. Digital output data is  accessible through either a SPI (3 or 4 wire) or I2C digital interface. 

The ADXL345 is well suited to measure 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 excellent sensitivity (3.9mg/LSB 2g) provides high-precision output up to +/-16g. 

Features

• 2.0-3.6VDC
•  Supply Voltage
• Ultra Low Power: 40uA in measurement mode, 0.1uA in standby 2.5V
• Tap/Double Tap Detection
• Free-Fall Detection
• SPI and I2C interfaces
• Dimensions: 21mm x 16mm