message: Tympan: add default REV
diff: @@ -30,7 +30,9 @@ enum class TympanRev { A, C, D, D0, D1, D2, D3 };
  class TympanPins { //Teensy 3.6 Pin Numbering
  public:
  - TympanPins(void) {}; //use default pins
  + TympanPins(void) {
  + setTympanRev(TympanRev::D); //assume RevD is default
  + };
  TympanPins(TympanRev _tympanRev) {
  setTympanRev(_tympanRev);
  }
  @@ -355,6 +357,10 @@ class TympanBase : public AudioControlAIC3206, public Print
  class Tympan : public TympanBase {
  public:
  + Tympan(void) : TympanBase() {
  + TympanPins myPins; //assumes defaults set by TympanPins
  + TympanBase::setupPins(myPins);
  + }
  Tympan(const TympanRev &_myRev) : TympanBase() {
  //initialize the TympanBase
  TympanPins myPins(_myRev);
  