/*
 *  Tugas Data Logger Arduino SD Card
 *  
 *  Muhammad Aswadi, 2315374021
 */

#include <SD.h>
#define pin_cs 7

File TugasKuliah, root;

void setup() {
  Serial.begin(9600);
  if (!SD.begin(pin_cs))
  {
    Serial.println("SD Card Tidak Dikenal");
    while(1);
  }
 buat_File();


 cekIsicard();
  
  // put your setup code here, to run once:

}

void loop() {
  int adc = analogRead(A1);
  isiFile(adc);
  
  delay(500);
   bacaFile();
   delay(500);

  // put your main code here, to run repeatedly:

}


void isiFile(int nilaiadc)
{
  TugasKuliah = SD.open("test.txt",FILE_WRITE);
  if(TugasKuliah)
  {
    TugasKuliah.println(nilaiadc);
    TugasKuliah.close();
  }
  else
  {
    Serial.println("File Tidak Terisi");
    while(1);
  }

}

void bacaFile()
{
   TugasKuliah = SD.open("test.txt");
  if(TugasKuliah)
  {
    while(TugasKuliah.available())
    {
    Serial.write(TugasKuliah.read());
    }
    TugasKuliah.close();
  }
  else
  {
    Serial.println("File Tidak Terbaca");
    while(1);

  }
}

void cekIsicard()
{
  root = SD.open("/");
  while(true){

  File cekfile = root.openNextFile();
  if(!cekfile)
  {
    break;
  }
  Serial.print(cekfile.name());
  Serial.print(" ");
  Serial.println(cekfile.size());
  cekfile.close();

  }
}


void buat_File()
{
    TugasKuliah = SD.open("test.txt",FILE_WRITE);
  if(TugasKuliah)
  {
    TugasKuliah.println("Kumpulan Tugas Mikrokontroller sensor");
    TugasKuliah.close();
  }
  else
  {
    Serial.println("Gagal membuat file");
     while(1);
  }
}