inertial measurement unit

A sensorA device that can measure something about its environment. Examples are movement, light, color, moisture, pressure, and many more. that uses inertiaThe tendency for an object to keep moving (or not moving) at a constant speed if you don’t accelerate or decelerate it. There’s inertia in a straight line and there’s also inertia of rotation – spinning things want to keep rotating in a specific direction unless you force them to change. to measure acceleration or deceleration either in a straight line or in rotation.