diff --git a/src/main.cpp b/src/main.cpp
index 7a5b23f..f5a85ec 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -42,6 +42,7 @@ RTC_DS3231 rtc; //déclaration de la rtc
 unsigned long freq_ecriture = 60000; // durée entre deux écritures sur la carte SD en micro secondes
 int fichier = 0;
 char horodatage[25]; //création du tableau pour contenir l'horodatage
+char fileName[5];
 
 //////////////////////////////////
 /* DÉFINITIONS DU DRIVER MOTEUR */
@@ -156,55 +157,6 @@ void stop_moteur() {
 /// FONCTIONS SD CARD ///
 /////////////////////////
 
-void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
-    Serial.printf("Listing directory: %s\n", dirname);
-
-    File root = fs.open(dirname);
-    if(!root){
-        Serial.println("Failed to open directory");
-        return;
-    }
-    if(!root.isDirectory()){
-        Serial.println("Not a directory");
-        return;
-    }
-
-    File file = root.openNextFile();
-    while(file){
-        if(file.isDirectory()){
-            Serial.print("  DIR : ");
-            Serial.println(file.name());
-            if(levels){
-                listDir(fs, file.name(), levels -1);
-            }
-        } else {
-            Serial.print("  FILE: ");
-            Serial.print(file.name());
-            Serial.print("  SIZE: ");
-            Serial.println(file.size());
-        }
-        file = root.openNextFile();
-    }
-}
-
-void createDir(fs::FS &fs, const char * path){
-    Serial.printf("Creating Dir: %s\n", path);
-    if(fs.mkdir(path)){
-        Serial.println("Dir created");
-    } else {
-        Serial.println("mkdir failed");
-    }
-}
-
-void removeDir(fs::FS &fs, const char * path){
-    Serial.printf("Removing Dir: %s\n", path);
-    if(fs.rmdir(path)){
-        Serial.println("Dir removed");
-    } else {
-        Serial.println("rmdir failed");
-    }
-}
-
 void readFile(fs::FS &fs, const char * path){
     Serial.printf("Reading file: %s\n", path);
 
@@ -253,15 +205,6 @@ void appendFile(fs::FS &fs, const char * path, const char * message){
     file.close();
 }
 
-void renameFile(fs::FS &fs, const char * path1, const char * path2){
-    Serial.printf("Renaming file %s to %s\n", path1, path2);
-    if (fs.rename(path1, path2)) {
-        Serial.println("File renamed");
-    } else {
-        Serial.println("Rename failed");
-    }
-}
-
 void deleteFile(fs::FS &fs, const char * path){
     Serial.printf("Deleting file: %s\n", path);
     if(fs.remove(path)){
@@ -314,41 +257,13 @@ void testFileIO(fs::FS &fs, const char * path){
 }
 
 void sd_init(){
-  if(!SD.begin()){
-        Serial.println("Card Mount Failed");
-        errorCode(1);
-        return;
-    }
-    uint8_t cardType = SD.cardType();
-
-    if(cardType == CARD_NONE){
-        Serial.println("No SD card attached");
-        errorCode(3);
-        return;
-    }
-
-    /* Serial.print("SD Card Type: ");
-    if(cardType == CARD_MMC){
-        Serial.println("MMC");
-    } else if(cardType == CARD_SD){
-        Serial.println("SDSC");
-    } else if(cardType == CARD_SDHC){
-        Serial.println("SDHC");
-    } else {
-        Serial.println("UNKNOWN");
-    } */
-
-    uint64_t cardSize = SD.cardSize() / (1024 * 1024);
-    Serial.printf("SD Card Size: %lluMB\n", cardSize);
-
-    // créer un dossier avec un numéro incrémental
 
+  writeFile(SD, fileName, horodatage );
 
 }
 
 void scribe_sd (){
-  fichier ;
-  writeFile(SD, "tr/min", horodatage);
+  appendFile(SD, fileName, horodatage);
 }
 
 /////////////////////////////