void loop() {
  while ( !digitalRead(DRDY) );
  R1 = ad7706.readADResult(AD770X::CHN_AIN1);
  double Temp_Bottom = (R1 - 1) / 0.00392;
  R2 = ad7706.readADResult(AD770X::CHN_AIN2);
  double Temp_Top = (R2 - 1) / 0.00392 - 10;
  int i = 0;
  int buffer[6];
  if (Serial.available()) {
    delay(100);
    while ( Serial.available() && i < 7) {
      buffer[i++] = Serial.read();
    }
    buffer[i++] = '\0';
  }