       *heat_index = dht.computeHeatIndex(*temperature_f, *humidity);
   
       Serial.print("Temperature: ");
-//      Serial.print(*temperature_f);
-//      Serial.println(" *F");
-//      
-//      Serial.print("Humidity: ");
-//      Serial.print(*humidity);
-//      Serial.println("%");
-//      
-//      Serial.print("Heat index: ");
-//      Serial.println(*heat_index);
+      Serial.print(*temperature_f);
+      Serial.println(" *F");
+      
+      Serial.print("Humidity: ");
+      Serial.print(*humidity);
+      Serial.println("%");
+      
+      Serial.print("Heat index: ");
+      Serial.println(*heat_index);
 
       return;
       


  uint32_t current_time = rtc.now().unixtime();
  uint32_t last_reading_time = get_last_reading_time();
  
  Serial.print("time since last reading: ");
  Serial.print(current_time - last_reading_time);
  Serial.print(", current_time: ");
  Serial.print(current_time);
  Serial.print(", last_reading_time: ");

void log_to_sd(float temperature_f, float humidity, float heat_index, uint32_t current_time) {
  Serial.println("writing to SD card...");
  
  File data_file;
  
  if (data_file = SD.open("data.csv", FILE_WRITE)) {
    data_file.print(current_time); data_file.print(",");
    data_file.print(temperature_f); data_file.print(",");
    data_file.print(humidity); data_file.print(",");
