/* Figured I'd note here that a first draft used a different method for correcting rotation within 360 degrees,
 * yet I changed it to a more readable form for folks newer to coding and Arduino, so they would better be able
 * to understand the simple logic that is occuring in this snippet.  Therefore, it should also be noted that it
 * can be expressed more concisely in a single line using a modulus operator like this:
*/

  //Correct Rotation within 360 deg.
  val = (val % 360 + 360) % 360;