    Serial.println(card.errorData(), HEX);
    }
    */
-  while(1) {
+   while(1) {
     uint8_t i;
     for (i=0; i<errno; i++) {
       digitalWrite(ledPin, HIGH);

  char c = GPS.read();
  // if you want to debug, this is a good time to do it!
  #ifdef UDR0
      if (GPSECHO)
        if (c) UDR0 = c;  
      // writing direct to UDR0 is much much faster than Serial.print 
      // but only one character can be written at a time. 
  #endif
}

void useInterrupt(boolean v) {
  if (v) {
    // Timer0 is already used for millis() - we'll just interrupt somewhere
    // in the middle and call the "Compare A" function above
    OCR0A = 0xAF;

Adafruit_TCS34725 tcs = Adafruit_TCS34725(TCS34725_INTEGRATIONTIME_700MS, TCS34725_GAIN_1X);

void setup() {
  
  if (tcs.begin()) {
    Serial.println("Found sensor");
    } else {
      Serial.println("No TCS34725 found ... check your connections");
      while (1);
    }

    tcs.setInterrupt(true);

  // connect at 115200 so we can read the GPS fast enough and echo without dropping chars
  // also spit it out
