Noise Level Notification Alert

#define CUSTOM_SETTINGS
#define INCLUDE_MIC_SHIELD
#define INCLUDE_NOTIFICATION_SHIELD

/* Include 1Sheeld library. */
#include <OneSheeld.h>
static boolean isSent = false;
void setup() 
{
  /* Start communication. */
  OneSheeld.begin();
}

void loop ()
{
  /* Always check the noise level. */
  if(Mic.getValue() > 80)
  {
    if(!isSent){
      Notification.notifyPhone("Noise level excceded the limit.");
      isSent = true;
    }
  }
  else 
  {
    isSent = false;
  }
}