This is the new FreeIMU V.043 - 10DOF sensor array and Motion Processing Unit in a small unit with the latest sensors. V 0.43 Features the MPU6050 6axis gyro/accel and Motion processing unit from Invensense, as well as the MS5611 High precision 24bit altimeter. FreeIMU is designed by Fabio Varesano Sensors: MPU6050 6 axis gyro/accel with Motion Processing Unit (MPU) HMC5883L 3-axis magnetometer (Compass) MS5611-01BA01 24-bit Highprecision altimeter Size: 21*22mm, Weight: 2.5 grams Operation is pure I2C and accel, gyro and magnetometer interrupt pins are available! Power is supplied by an onboard 3.3V low-noise LDO that can be fed with 3.6 - 6.5V. i2c operation is at 3.3 volts, so you need to disable internal pullups for AVR and Arduino use, or use a Logic Level Converter!