A body interactor is small device which is able to communicate wireless with other body interactors. It has one sensor, an accelerometer, for sensing movements. And it is has one actuator: a vibration motor. The body interactor should be able to control the motor using the movement data of its own accelerometer as well as the data send by other body interactors.
There are multiple usage in the area of lifestyle, well-being, exercising and toys e.g. synchronized massage device, exergames for improving coordination.