Model: GY-291
Using chip: ADXL345
Power supply: 3-5v
Communication mode: IIC/SPI communication protocols

Features: The ADXL345 is a small, slim, low-power triaxial accelerometer that provides high-resolution (13-bit) measurements of acceleration up to ±16 g. It is ideal for mobile device applications.
It is well suited for mobile device applications. It can measure static gravitational acceleration in tilt detection applications, as well as dynamic acceleration due to motion or shock. It has a high resolution (4mg/LSB) and can measure tilt angle changes of less than 1.0 degree.
The digital output data is in 16-bit binary-complement format and can be accessed via SPI (3 or 4 wire) or I2C digital interfaces.
A low-power mode supports intelligent motion-based power management for threshold sensing and motion acceleration measurements with low power consumption.
Two GY-291 ADXL345 digital 3-axis gravity acceleration tilt modules in one package.