iowa-timer/loop.ino

void loop() {
  // int v = digitalRead(8);
  // Serial.print(v);
  // Serial.print('\n');
  if (timerRunning == 0 && digitalRead(SENSOR) == HIGH) { // stop counting
    startTime = millis();
    timerRunning = 1;
  }
  if (timerRunning == 1 && digitalRead(SENSOR) == LOW) { // start counting
    endTime = millis();
    timerRunning = 0;
    laps++;
    avglaps++;
    duration = endTime - startTime;
    seconds = (duration/1000);
    hours= (duration/3600000);
    mph= (distance/hours);
    Serial.print ("Lap:   ");
    Serial.print (laps);
    Serial.print (" \t");
    Serial.print ("mph:   ");
    Serial.print (mph,3);
    Serial.print (" \t");
    Serial.print ("sec: ");
    Serial.println (seconds,3);
    Serial.print ("avgLap:   ");
    Serial.println (avglaps);
    delay(5); // added this delay to stop reading rear wheels error before was up to .003 seconds
    if (mode == MODE_SPINUP) {
      showNumber(mph);
      showShapeLAP(2);
    }
    if (mode == MODE_COUNTING) {
      showNumber(mph);
      showNumberLAP(recordedLaps);
      recordLap(mph);
      if (recordedLaps == maxLaps) {
        Serial.println('Switching mode to MODE_RESTING\n');
        mode = MODE_RESTING;
      }
    }
    if (mode == MODE_RESTING) {
      showNumber(averageSpeed());
      showNumberLAP(maxLaps);
      delay(3000);
      showNumber(0);
      showShapeLAP(2);
      Serial.println("Setting mode to MODE_SPINUP\n");
      mode = MODE_SPINUP;
      recordedLaps = 0;
    } 
    // Otherwise leave it

    /// LAP AVERAGE COUNTER LOOP CODE /////////////////////
    Serial.print("avgSpeed: ");
    Serial.println (averageSpeed(),4);
  }

}