title: Head movement detection using 1 accelerometer
body: <p>I've been assigned a small project of designing a turning jacket for cyclist, which is used to indicate when the cyclist turns right or left using LEDs attached to the back of the jacket. I plan to use 1 accelerometer to detect the head movement. There are simply two kinds of movement: left and right. Is it possible to use 1 accelerometer to specify the movement of the head?</p>
  
  <p>Thanks!</p>