There once was a time not too long ago when generation of drones or flying robots has received a large gain in popularity. The area of drones or navigation devices is expanded especially for hobbyists, makers, and hackers, with devices engineered to help them in the development of their projects.
Equipped with an IMU sensor, the IMUduino is a tiny board able to communicate wireless with Android and iOS devices and provide real-time spatial 3D orientation/motion data for a wide range of applications.
Today almost every autonomous flying robot is equipped with inertial measurement unit (IMU) sensor which is a very tiny device able to combine the data from an accelerometer that measure proper acceleration with data from a gyroscope that measure or maintain the orientation. The data received from the IMU sensor are a series of values reported for orientation, gravitational force, and velocity.
The board specifications are comparable with Arduino Leonardo specifications. The microcontroller board uses the same ATMEGA32u4 microcontroller and the same number of analog and digital pins.
So if you want to build a quadcopter or any other device able to communicate wireless with a smartphone, IMU sensor attached, and controllable via microcontroller, there is a good way to use IMUduino for prototyping things.