SD CARD 

Example

: Handling Directories

This example shows how to handle directories using Waspmote SD

File:
"WaspSD_2_handlingDirectories.pde"

Code

/*
 *  ------Waspmote SD Handling Directories Example--------
 *
 *  Explanation: This example shows how to handle directories using 
 *  Waspmote SD 
 *
 *  Copyright (C) 2009 Libelium Comunicaciones Distribuidas S.L.
 *  http://www.libelium.com
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 2 of the License, or
 *  (at your option) any later version.
 * 
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 * 
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *  Version:                0.1
 *  Design:                 David Gascón
 *  Implementation:         Alberto Bielsa
 */

const char* command="Folder1";
const char* command2="Folder2";
const char* command3="Test4";
const char* filename="file3.txt";

void setup() {
  USB.begin();
  USB.println("Start WASP FAT 16 SD-Card Test\n");
  
  // Set SD ON
  SD.ON();
}

void loop()
{
  // Init SD
  USB.println("DISK INFO: ");
  USB.println(SD.print_disk_info());

  // Getting Disk Size
  USB.print("Disk Size: ");
  USB.println(SD.getDiskSize());
  USB.print("Disk Free: ");  
  USB.println(SD.getDiskFree());
  
  // Listing Root Directory. Initially empty
  USB.println("List root Directory: ");
  USB.println(SD.ls());
  
  // Creating Files
  if(SD.create("Test_File_1")) USB.println("Created a file called 'Test_File_1'");
  if(SD.create("Test_File_2")) USB.println("Created a file called 'Test_File_2'");  
  
  // Creating Directories
  if(SD.mkdir("Folder")) USB.println("Created directory 'Folder'");
  if(SD.mkdir("Folder2")) USB.println("Created directory 'Folder2'");
  USB.println("List root Directory: ");
  USB.println(SD.ls());
  
  // Getting atributes of the directories
  if(!SD.isFile("Folder")) USB.println("'Folder' is not a file");
  if(SD.isDir("Folder")) USB.println("'Folder' is a dir");
  USB.print("Attributes of 'Folder': ");
  USB.println(SD.getAttributes("Folder"));
  if(SD.cd("Folder")) USB.println("Entering into 'Folder' ");
  USB.println("List 'Folder'");
  USB.println(SD.ls());
  if(SD.cd("..")) USB.println("Getting out of 'Folder' ");
  
  // Moving through the directories
  USB.println("List root Directory: ");
  USB.println(SD.ls());
  if(SD.cd("Folder2")) USB.println("Entering into 'Folder2' ");
  if(SD.create("FileText5.txt")) USB.println("'FileText5.txt' created");
  USB.println("List 'Folder2' Directory: ");
  USB.println(SD.ls());
  
  // Deleting files inside a directory
  if(SD.del(".")) USB.println("Content of 'Folder2' deleted");
  USB.println("List 'Folder2' Directory: ");
  USB.println(SD.ls());
  if(SD.cd("..")) USB.println("Getting out of 'Folder2' ");
  
  // Deleting directories
  if(SD.del("Folder")) USB.println("'Folder' deleted");
  USB.println("List root directory: ");
  USB.println(SD.ls());
  if(SD.del("Folder2")) USB.println("'Folder2' deleted");
  USB.println("List root directory: ");
  USB.println(SD.ls());
  
  // Deleting all created files
  if(SD.del("Test_File_1")) USB.println("File 'Test_File_1' deleted");
  if(SD.del("Test_File_2")) USB.println("File 'Test_File_2' deleted");  
  
  // Same disk free as when starting the example
  USB.println("List root directory: ");
  USB.println(SD.ls());
  USB.print("Disk Free: ");
  USB.println(SD.getDiskFree());  

  delay(5000);
}
 

Download code

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