#include <SD.h>

const int chipSelect = 4;

void setup(){
	Serial.begin(9600);
	while (!Serial) {
		;
	}

	Serial.print("Initializing SD card...");
	pinMode(10, OUTPUT);
	  
	if (!SD.begin(chipSelect)) {
		Serial.println("Card failed, or not present");
		return;
	}
	Serial.println("card initialized.");

	File dataFile = SD.open("datalog.txt");

	if (dataFile) {
		while (dataFile.available()) {
			Serial.write(dataFile.read());
		}
		dataFile.close();
	}  
	else {
		Serial.println("error opening datalog.txt");
	} 
}

void loop(){}