Based on Arduino Pro Mini card with ATmega328P microcontroller, the 3 axis motion sensor gyroscope allows you to track the movement of the head or arm and replicate it to servos.

[Jim] loves gyros – not those newfangled MEMS devices, but old-fashioned mechanical gyroscopes. His obsession has pushed him to build this gyro stabilized two wheeler. We love watching hacks … ...

1Sheeld connects your Arduino to your smartphone (Android only, for now) to hook into its display, accelerometer, magnetometer, Wi-Fi, cellular connectivity, GPS, gyroscope, etc.