message: Tympan.h: improve comment
diff: @@ -224,7 +224,7 @@ class TympanBase : public AudioControlAIC3206, public Print
  return pins.enableStereoExtMicBias;
  }
  }
  - int setEnableStereoExtMicBiasAIC(int new_state) {
  + int setEnableStereoExtMicBiasAIC(int new_state) { //for AIC Shield
  if (pins.AIC_Shield_enableStereoExtMicBias != NOT_A_FEATURE) {
  digitalWrite(pins.AIC_Shield_enableStereoExtMicBias,new_state);
  return new_state;
  