Interested in creating a Segway made from LEGO pieces? Well, the folks over at Dexter Industries have what you need. Those guys have come up with something called an Inertial Motion Unit (IMU) Sensor: the combination of an accelerometer and gyroscope into one sensor. Using the IMU, LEGO enthusiasts can build robots that know which way is up, measure tilt, balance themselves, measure acceleration and rotation on all axes simultaneously.Using it on a LEGO Mindstorms robot, they created a demonstration video that looks pretty impressive – if you’re into LEGO robots, even more so. It’s on sale now with a price tag of $65, and you can find out more about it here. In the meantime check out the video showing the Dexter Industries IMU in action: