 
 #include <Wire.h>
 #include "RTClib.h"
+#include <SPI.h>
+#include <SD.h>
 
 RTC_DS1307 rtc;
 

int atlas[] = {0x61, 0x62, 0x63, 0x64};
int num_probes = 4;

void setup() {
  Serial.begin(9600);
  Wire.begin();
  rtc.begin();
  Serial.flush();
  Serial.println(F("\n\nDate\tTime\tDO\tORP\tpH\tEC\tTDS\tSAL\tSG"));
}

  unsigned long time = millis();
 String date = rtc_time(); 
 Serial.print(date);
 outputFile.print(date);

  while ((millis() - time) < 1500) {
    delay(1501-(millis() - time));
