diff --git a/CMakeLists.txt b/CMakeLists.txt
index a0c76a9..ae4363e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -72,6 +72,7 @@ target_link_libraries( host_cdc_msc_hid PUBLIC
         hardware_sync
         pico_aon_timer
         pico_stdlib
+        pico_multicore
         ${HWDEP_LIBS}
         )
 
diff --git a/main.c b/main.c
index 9f80be1..eb70b39 100644
--- a/main.c
+++ b/main.c
@@ -105,12 +105,61 @@ sd_card_t* sd_get_by_num(size_t num) {
     }
 }
 
+void sd_card_gestion(){
+  if(gpio_get(1) == 1){
+    ws2812_set_buffer_rgb(OFF_24BITS, 0);
+    // Unmount FS + de-init log SD
+  }else{
+    ws2812_set_buffer_rgb(BLEU_24BITS, 0);
+  }
+
+  // Init SD Card for log
+  FATFS fs;
+  char drive_path[3] = "0:";
+  drive_path[0] += DEV_SDIO_MIN;
+  FRESULT fr;
+  do{
+    fr = f_mount(&fs, drive_path, 1);
+    if(FR_OK != fr){
+      printf("f_mount error: %s (%d)\n", FRESULT_str(fr), fr);
+      printf(">f_mount:0\n");
+      sleep_ms(50);
+    }else{
+      printf(">f_mount:1\n");
+      f_unmount(drive_path);
+      sleep_ms(50);
+    }
+  }while(1);
+}
+
+void core1_functions(){
+  while(1){
+    ws2812_affiche_buffer();
+    sleep_ms(2);
+  }
+}
+
 
 /*------------- MAIN -------------*/
 int main(void) {
+  multicore_launch_core1(core1_functions);
   board_init();
   ws2812_init();
 
+  ws2812_set_buffer_rgb(2,2,2,0);
+  ws2812_set_buffer_rgb(2,2,2,3);
+
+  // Init detection carte SD
+  gpio_init(1);
+  gpio_set_dir(1, GPIO_IN);
+  gpio_pull_up(1);
+
+  /*while(1){
+    sd_card_gestion();
+
+  }*/
+
+
   gpio_set_function(12, UART_FUNCSEL_NUM(uart0, 12));
   gpio_set_function(13, UART_FUNCSEL_NUM(uart0, 13));
   printf("TinyUSB Host CDC MSC HID - Logs\r\n");
diff --git a/ws2812.c b/ws2812.c
index c8efca0..dad66a9 100644
--- a/ws2812.c
+++ b/ws2812.c
@@ -64,7 +64,7 @@ void ws2812_init(){
 
     // Tout rouge !
     for(uint32_t i = 0; i<12; i++){
-        ws2812_set_buffer_rgb(0x4, 0x1, 0, i);
+        ws2812_set_buffer_rgb(ORANGE_24BITS, i);
     }
     ws2812_affiche_buffer();
 }
@@ -110,6 +110,12 @@ void ws2812_set_buffer_rgb(uint8_t rouge, uint8_t vert, uint8_t bleu, uint8_t in
         ws2812_set_buffer(urgb_u32(rouge, vert,bleu), index_led);
 }
 
+void ws2812_set_rgb(uint8_t rouge, uint8_t vert, uint8_t bleu, uint8_t index_led){
+        ws2812_set_buffer(urgb_u32(rouge, vert,bleu), index_led);
+        ws2812_affiche_buffer();
+        sleep_us(500);
+}
+
 //Bit    7  6  5  4  3  2  1  0
 //Data   R  R  R  G  G  G  B  B
 void ws2812_set_buffer_8bits(uint8_t couleur, uint8_t index_led){
@@ -123,4 +129,18 @@ void ws2812_set_buffer(uint32_t couleur, uint8_t index_led){
     if(index_led <12){
         buffer_couleur[index_led] = couleur;
     }
+}
+
+void ws2812_set_led(uint8_t led, uint32_t couleur){
+    ws2812_set_buffer(couleur, led);
+    ws2812_affiche_buffer();
+
+}
+
+uint32_t ws2812_mix_color(uint32_t couleur1, uint32_t couleur2, float facteur){
+    uint8_t r, g, b;
+    b = (couleur1 & 0xFF) * (1 - facteur) + (couleur2 & 0xFF) * facteur;
+    r = ((couleur1 & 0xFF00)>> 8) * (1 - facteur) +  ((couleur2 & 0xFF00)>> 8) * facteur;
+    g = ((couleur1 & 0xFF0000)>> 16) * (1 - facteur) +  ((couleur2 & 0xFF00)>> 16) * facteur;
+    return urgb_u32(r, g, b);
 }
\ No newline at end of file
diff --git a/ws2812.h b/ws2812.h
index ba5679e..a877859 100644
--- a/ws2812.h
+++ b/ws2812.h
@@ -3,5 +3,12 @@
 void ws2812_init(void);
 void ws2812_affiche_buffer(void);
 void ws2812_set_buffer_rgb(uint8_t rouge, uint8_t vert, uint8_t bleu, uint8_t index_led);
+void ws2812_set_rgb(uint8_t rouge, uint8_t vert, uint8_t bleu, uint8_t index_led);
 void ws2812_set_buffer_8bits(uint8_t couleur, uint8_t index_led);
-void ws2812_arc_en_ciel(void);
\ No newline at end of file
+void ws2812_arc_en_ciel(void);
+void ws2812_set_led(uint8_t led, uint32_t couleur);
+
+#define OFF_24BITS 0, 0, 0
+#define ORANGE_24BITS 4, 1, 0
+#define BLEU_24BITS 0, 0, 4
+#define VERT_24BITS 0, 4, 1
\ No newline at end of file