The ADXL345 is a low-power, 3-axis MEMS accelerometer modules with both I2C and SPI interfaces. The Breakout boards for these modules feature on-board 3.3v voltage regulation and level shifting which makes them simple to interface with 5v microcontrollers such as the Arduino.
Features: 3-axis tilt sensor outputs the degree of inclination as analog value supports I2C and SPI Power supply: 3.3-5V Dimensions: 28*14mm