This is a ADXL345 based Triple axis accelerometer module with digital output. This is a very small module with onboard 3.3V LDO regulator. This module supports 3.3-5V input, this adxl345 chip based module can be interface with any microcontroller using I2C or SPI, no analog signal so no need for ADC to interface.
ADXL345 is well suited to 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 degrees.