unsigned long CountMeasureTimeTotal = 10000;
unsigned long MeasureTime = millis();

int PeakValueTrigger = 500;
int lastPeakValue;

uint8_t CountStarted = false;

int PeakCount;
unsigned long CountMeasureTime;

# define analogPin  A2

void setup()
{
  Serial.begin(115200);
  Serial.println("hello there\n");
}

void loop()
{
  int peakValue = analogRead( analogPin);

  //  Serial.print("               "); Serial.println(peakValue);

  if ( (peakValue > PeakValueTrigger)  && (lastPeakValue < PeakValueTrigger) && CountStarted == false )
  {
    PeakCount = 0; // ++; ??
    CountStarted = true;
    CountMeasureTime = millis();
    lastPeakValue = peakValue;
  }

  if ( (peakValue >= PeakValueTrigger)   && (lastPeakValue < PeakValueTrigger) && CountStarted )
  {
    if ( ((millis() - MeasureTime) < CountMeasureTimeTotal) && CountStarted ) {
      PeakCount++;
      Serial.println(PeakCount);
      if (PeakCount >= 5) {
        Serial.println("             5 times in 10 seconds");

        lastPeakValue = peakValue;
        PeakCount = 0;
        CountStarted = false;
      }
      //collect the measurements whiles the time has not expired
    }
  }
  if ( ((millis() - MeasureTime) >= CountMeasureTimeTotal) && CountStarted )
  {
    // stop the count when measurement time expires
    CountStarted = false;
  }

  lastPeakValue = peakValue;


  delay(50);   // relly should do this properly
}