MODULES SD CARD []

Outils pour utilisateurs

Outils du site


MODULES SD CARD

Différences

Ci-dessous, les différences entre deux révisions de la page.

Lien vers cette vue comparative

Prochaine révision
Révision précédente
documentation:microcontroleurs:arduino:modules:sdcard:index [2021/06/24 15:58] – créée f1slsdocumentation:microcontroleurs:arduino:modules:sdcard:index [2022/09/13 08:29] (Version actuelle) – [PINOUTS] f1sls
Ligne 1: Ligne 1:
 {{:documentation:microcontroleurs:arduino:modules:sdcard:sdcard_modules.jpeg?direct&400|}} {{:documentation:microcontroleurs:arduino:modules:sdcard:sdcard_modules.jpeg?direct&400|}}
 ====== MODULES SD CARD ====== ====== MODULES SD CARD ======
 +
 +===== PINOUTS =====
 +{{:documentation:microcontroleurs:arduino:modules:sdcard:ds3231-sd-module-pinout.jpg?direct&600|}}
 +----
 +{{:documentation:microcontroleurs:arduino:modules:sdcard:micro-sd-tf-card-module-pinout-spi.png|}}
 +
 +===== SD-CARD + ARDUINO =====
 +{{:documentation:microcontroleurs:arduino:modules:sdcard:ds3231-sd-card-module-circuit.jpg?direct&600|}}
 +----
 +{{:documentation:microcontroleurs:arduino:modules:sdcard:sdcard_modules_wiring.jpeg?direct&800|}}
 +----
 +{{:documentation:microcontroleurs:arduino:modules:sdcard:sdcardarduinonano.png|}}
 +===== CODE =====
 +
 +==== WRITING ====
 +<code cpp>
 +#include <SPI.h>
 +#include <SD.h>
 +
 +File myFile;
 +
 +void setup() {
 +
 +  // Open serial communications and wait for port to open:
 +  Serial.begin(9600);
 +  while (!Serial) {
 +   ; // wait for serial port to connect. Needed for native USB port only
 +  }
 +  
 +  Serial.print("Initializing SD card...");
 +  
 +  if (!SD.begin(10)) {
 +  Serial.println("initialization failed!");
 +  while (1);
 +  }
 +  
 +  Serial.println("initialization done.");
 +  
 +  // open the file. note that only one file can be open at a time,
 +  // so you have to close this one before opening another.
 +  myFile = SD.open("test.txt", FILE_WRITE);
 +
 +  // if the file opened okay, write to it:
 +  if (myFile) {
 +  Serial.print("Writing to test.txt...");
 +  myFile.println("This is a test file :)");
 +  myFile.println("testing 1, 2, 3.");
 +  
 +  for (int i = 0; i < 20; i++) {
 +    myFile.println(i);
 +  }
 +
 +  // close the file:
 +  myFile.close();
 +
 +  Serial.println("done.");
 +  } else {
 +    // if the file didn't open, print an error:
 +    Serial.println("error opening test.txt");
 +  }
 +}
 +
 +void loop() {
 + // nothing happens after setup
 +}
 +</code>
 +
 +==== READING ====
 +<code cpp>
 +#include <SPI.h>
 +#include <SD.h>
 +File myFile;
 +
 +void setup() {
 +
 +  // Open serial communications and wait for port to open:
 +  Serial.begin(9600);
 +
 +  while (!Serial) {
 +    ; // wait for serial port to connect. Needed for native USB port only
 +  }
 +
 +  Serial.print("Initializing SD card...");
 +  if (!SD.begin(10)) {
 +    Serial.println("initialization failed!");
 +    while (1);
 +  }
 +
 +  Serial.println("initialization done.");
 +
 +  // open the file for reading:
 +  myFile = SD.open("test.txt");
 +  
 +  if (myFile) {
 +    Serial.println("test.txt:");
 +
 +    // read from the file until there's nothing else in it:
 +    while (myFile.available()) {
 +      Serial.write(myFile.read());
 +    }
 +
 +    // close the file:
 +    myFile.close();
 +    
 +  } else {
 +  // if the file didn't open, print an error:
 +    Serial.println("error opening test.txt");
 +  }
 +}
 +
 +void loop() {
 +  // nothing happens after setup
 +}
 +
 +</code>
 +
 +==== READING LINE BY LINE ====
 +<code cpp>
 +</code>
documentation/microcontroleurs/arduino/modules/sdcard/index.1624543135.txt.gz · Dernière modification : de f1sls