diff --git a/web.cpp b/web.cpp
index 0133f6685c5c4f44a51474dddfc58226f9533d51..b21c5bdf9925ecbb0ad58954958d4843e1030b15 100644
--- a/web.cpp
+++ b/web.cpp
@@ -39,34 +39,38 @@ void web_setup ()
 
     ESPUI.sliderContinuous = true;
 
+    //Volume_exchange_wanted
+    volume_exchange_mL_label = ESPUI.addControl(ControlType::Label, "Caractéristiques de l'échange", "Volume à échanger en mL", ControlColor::None);
+    volume_exchange_mL = ESPUI.addControl(ControlType::Number,"Caractéristiques de l'échange", "", ControlColor::None, volume_exchange_mL_label, volume_exchange_mL_callback, (void*)19);
+    
+    exchange_throughtput_uL_per_sec_label = ESPUI.addControl(ControlType::Label, "Caractéristiques de l'échange", "Débit de l'échange en uL/sec", ControlColor::None, volume_exchange_mL_label);
+    exchange_throughtput_uL_per_sec = ESPUI.addControl(ControlType::Number,"Caractéristiques de l'échange", "", ControlColor::None, volume_exchange_mL_label, exchange_throughtput_uL_per_sec_callback, (void*)19);
+ 
+
+    label_push_pull_choice = ESPUI.addControl(ControlType::Label, "Delivrer ou recupérer", "Délivrer", ControlColor::None, volume_exchange_mL_label);
+    switch_push_pull_choice = ESPUI.addControl(ControlType::Switcher, "Delivrer ou recupérer", "Délivrer", ControlColor::None, volume_exchange_mL_label, switch_push_pull_choice_callback, (void*)19);
+    ESPUI.updateSwitcher(switch_push_pull_choice, true); //pour mettre a "Delivrer" par défaut au début
+
 
     //Configurations
 
     //Choice_of_syringe_model
-    ESPUI.addControl(ControlType::Separator, "Seringue 1", "", ControlColor::None, configurations);
 
     syringe_selection = ESPUI.addControl(ControlType::Select, "Choix de la seringue :", "", ControlColor::None, configurations, syringe_selection_callback);
     select_syringe_maj(configurations);
 
-    //test
-    float diametre = 10;    
-    std::string temp = "internal diameter : " + std::to_string(diametre);
-    //fin test
-    syringe_volume_mL =ESPUI.addControl( ControlType::Label, "Caractéristiques de la seringue : ", "Volume total = ? mL" , ControlColor::None, syringe_ref);
-    syringe_diameter_mm =ESPUI.addControl( ControlType::Label, "Caractéristiques de la seringue : ", temp.c_str(), ControlColor::None, syringe_ref);
+    syringe_volume_mL_value = 5;
+    syringe_volume_mL_string = "Volume total: " + std::to_string(syringe_volume_mL_value) + "mL";
+    syringe_volume_mL =ESPUI.addControl( ControlType::Label, "Caractéristiques de la seringue : ", syringe_volume_mL_string.c_str() , ControlColor::None, configurations);
+
+    syringe_diameter_mm_value = 5;
+    syringe_diameter_mm_string = "internal diameter : " + std::to_string(syringe_volume_mL_value) + "mm";
+    syringe_diameter_mm =ESPUI.addControl( ControlType::Label, "Caractéristiques de la seringue : ", syringe_diameter_mm_string.c_str(), ControlColor::None, syringe_volume_mL);
 
     choose_syringe = ESPUI.addControl(ControlType::Button, "Choisir cette seringue", "Utiliser cette seringue", ControlColor::None, syringe_selection, choose_syringe_callback, (void*)19);
   
     ESPUI.addControl(ControlType::Separator, "", "", ControlColor::None, configurations);
    
-    //Volume_exchange_wanted
-    volume_exchange_mL = ESPUI.addControl(ControlType::Number,"Choix du volume à echanger en mL", "", ControlColor::None, configurations, volume_exchange_mL_callback, (void*)19);
- 
-
-    label_push_pull_choice = ESPUI.addControl(ControlType::Label, "Delivrer ou recupérer", "Délivrer", ControlColor::None, volume_exchange_mL);
-    switch_push_pull_choice = ESPUI.addControl(ControlType::Switcher, "Delivrer ou recupérer", "Délivrer", ControlColor::None, volume_exchange_mL, switch_push_pull_choice_callback, (void*)19);
-    ESPUI.updateSwitcher(switch_push_pull_choice, true); //pour mettre a "Delivrer" par défaut au début
-
 
     //New_syringe
     name_new_syringe_label = ESPUI.addControl(ControlType::Label, "Nouvelle seringue", "Nom de la seringue :", ControlColor::None, new_syringe);
@@ -178,6 +182,7 @@ void initialisation_callback (Control *sender, int type)
         style (activation_syringe_pump, 1);
     }
 }
+
 void volume_exchange_mL_callback (Control* sender, int value, void* param)
 /***
 -Argument : Pointer to the controller calling the function, integer according to the controller type.
@@ -190,6 +195,19 @@ void volume_exchange_mL_callback (Control* sender, int value, void* param)
     syringe_filled.write_Json ();
 }
 
+void exchange_throughtput_uL_per_sec_callback (Control* sender, int value, void* param)
+/***
+-Argument : Pointer to the controller calling the function, integer according to the controller type.
+-Return   : /
+-Action   : Enable to choose the volume that woud be exchanged.
+***/
+{
+    Serial.printf("val=%s\n", sender->value.c_str()); 
+    syringe_filled.set_exchange_throughput_uL_per_sec(atof(sender->value.c_str()));
+    syringe_filled.write_Json ();
+}
+
+
 void switch_push_pull_choice_callback (Control* sender, int value, void* param)
 /***
 -Argument : Pointer to the controller calling the function, integer according to the controller type.
@@ -207,7 +225,10 @@ void switch_push_pull_choice_callback (Control* sender, int value, void* param)
         
         ESPUI.print(label_push_pull_choice, "Délivrer");
 
-        style (volume_exchange_mL, 1);
+        style (volume_exchange_mL_label, 1);
+        style (volume_exchange_mL, 1); 
+        style (exchange_throughtput_uL_per_sec_label, 1);
+        style (exchange_throughtput_uL_per_sec, 1);
         style (label_push_pull_choice, 1);
         style (switch_push_pull_choice, 1);
         
@@ -219,7 +240,10 @@ void switch_push_pull_choice_callback (Control* sender, int value, void* param)
 
         ESPUI.print(label_push_pull_choice, "Recupérer");
 
-        style (volume_exchange_mL, 2);
+        style (volume_exchange_mL_label, 2);
+        style (volume_exchange_mL, 2); 
+        style (exchange_throughtput_uL_per_sec_label, 2);
+        style (exchange_throughtput_uL_per_sec, 2);
         style (label_push_pull_choice, 2);
         style (switch_push_pull_choice, 2);
         break;
@@ -254,6 +278,20 @@ void choose_syringe_callback (Control* sender, int value, void* param)
     {
     case B_DOWN:
         Serial.println("Button DOWN");
+
+        //syringe_volume_mL_value = 2; //Mettre la valeur associé au nom choisit du select
+        syringe_volume_mL_value = syringe.get_syringe_database()[select_value]["total_volume_mL"];
+        syringe_volume_mL_string = "Volume total: " + std::to_string(syringe_volume_mL_value) + "mL";
+        ESPUI.print(syringe_volume_mL, syringe_volume_mL_string.c_str());
+
+        //syringe_diameter_mm_value = 1; //Mettre la valeur associé au nom choisit du select
+        syringe_diameter_mm_value = syringe.get_syringe_database()[select_value]["internal_diameter_mm"];
+        syringe_diameter_mm_string = "internal diameter : " + std::to_string(syringe_volume_mL_value) + "mm";
+        ESPUI.print(syringe_diameter_mm, syringe_diameter_mm_string.c_str());
+
+
+        
+
         break;
 
     case B_UP:
@@ -517,7 +555,10 @@ void set_init_style()
 
     style (initialisation, 2);
 
-    style (volume_exchange_mL, 1);
+    style (volume_exchange_mL_label, 1);
+    style (volume_exchange_mL, 1); 
+    style (exchange_throughtput_uL_per_sec_label, 1);
+    style (exchange_throughtput_uL_per_sec, 1);
     style (label_push_pull_choice, 1);
     style (switch_push_pull_choice, 1);
 
@@ -528,7 +569,6 @@ void set_init_style()
     style (syringe_diameter_mm, 3);
     style (choose_syringe, 3);
 
-
     style (name_new_syringe, 3);
     style (internal_diameter_mm_new_syringe, 3);
     style (total_volume_mL_new_syringe, 3);
@@ -538,6 +578,8 @@ void set_init_style()
     style (total_volume_mL_new_syringe_label, 3);
     style (add_syringe_label, 3);
 
+    
+
 
     //features : Configurations avancées
     
diff --git a/web.h b/web.h
index 3d0ed34037e9fe6f01be2d6c621f54501040e0a5..5fac25447a16b572c1f23068b966655c0154eebb 100644
--- a/web.h
+++ b/web.h
@@ -27,7 +27,7 @@ uint16_t syringe_filled_placement;
 
 uint16_t initialisation;
 
-uint16_t volume_exchange_mL, label_push_pull_choice, switch_push_pull_choice;
+uint16_t volume_exchange_mL_label, volume_exchange_mL, exchange_throughtput_uL_per_sec_label, exchange_throughtput_uL_per_sec, label_push_pull_choice, switch_push_pull_choice;
 
 uint16_t label_remaining_volume_mL;
 
@@ -36,6 +36,10 @@ uint16_t remaining_volume_mL;
 //Configurations
 uint16_t syringe_selection, syringe_ref, syringe_brand, syringe_volume_mL, syringe_diameter_mm, choose_syringe;
 
+float syringe_volume_mL_value, syringe_diameter_mm_value;
+
+std::string syringe_volume_mL_string, syringe_diameter_mm_string;
+
 //New_syringe
 uint16_t name_new_syringe, name_new_syringe_label, internal_diameter_mm_new_syringe, internal_diameter_mm_new_syringe_label, total_volume_mL_new_syringe, total_volume_mL_new_syringe_label, add_syringe, add_syringe_label;
 String name_new_syringe_value, total_volume_mL_new_syringe_value, internal_diameter_mm_new_syringe_value;
@@ -81,6 +85,7 @@ void activation_syringe_pump_callback (Control* sender, int value, void* param);
 void syringe_filled_placement_callback (Control* sender, int value, void* param);
 void initialisation_callback(Control* sender, int type);
 void volume_exchange_mL_callback (Control* sender, int value, void* param);
+void exchange_throughtput_uL_per_sec_callback (Control* sender, int value, void* param);
 void switch_push_pull_choice_callback (Control* sender, int value, void* param);
 void remaining_volume_mL_callback (Control* sender, int value, void* param);