diff --git a/client/desktop.ini b/client/desktop.ini
new file mode 100644
index 0000000000000000000000000000000000000000..995bb2e84cfd5df6cfd67a0151684a5b03615531
--- /dev/null
+++ b/client/desktop.ini
@@ -0,0 +1,5 @@
+[.ShellClassInfo]
+InfoTip=Ce dossier est partagé en ligne.
+IconFile=C:\Program Files\Google\Drive\googledrivesync.exe
+IconIndex=16
+    
\ No newline at end of file
diff --git a/client/package-lock.json b/client/package-lock.json
index 608d2b0823101a34ae1b168d41329566f6155664..d831f6088c2a14dec93f7fe5c66d34bf695ba162 100644
--- a/client/package-lock.json
+++ b/client/package-lock.json
@@ -548,6 +548,16 @@
           "integrity": "sha512-nQyp0o1/mNdbTO1PO6kHkwSrmgZ0MT/jCCpNiwbUjGoRN4dlBhqJtoQuCnEOKzgTVwg0ZWiCoQy6SxMebQVh8A==",
           "dev": true
         },
+        "ansi-styles": {
+          "version": "4.3.0",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
+          "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "color-convert": "^2.0.1"
+          }
+        },
         "cacache": {
           "version": "13.0.1",
           "resolved": "https://registry.npmjs.org/cacache/-/cacache-13.0.1.tgz",
@@ -574,6 +584,34 @@
             "unique-filename": "^1.1.1"
           }
         },
+        "chalk": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.0.tgz",
+          "integrity": "sha512-qwx12AxXe2Q5xQ43Ac//I6v5aXTipYrSESdOgzrN+9XjgEpyjpKuvSGaN4qE93f7TQTlerQQ8S+EQ0EyDoVL1A==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "ansi-styles": "^4.1.0",
+            "supports-color": "^7.1.0"
+          }
+        },
+        "color-convert": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+          "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "color-name": "~1.1.4"
+          }
+        },
+        "color-name": {
+          "version": "1.1.4",
+          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+          "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
+          "dev": true,
+          "optional": true
+        },
         "debug": {
           "version": "4.3.1",
           "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.1.tgz",
@@ -604,6 +642,35 @@
             "path-exists": "^4.0.0"
           }
         },
+        "has-flag": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
+          "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
+          "dev": true,
+          "optional": true
+        },
+        "json5": {
+          "version": "2.2.0",
+          "resolved": "https://registry.npmjs.org/json5/-/json5-2.2.0.tgz",
+          "integrity": "sha512-f+8cldu7X/y7RAJurMEJmdoKXGB/X550w2Nr3tTbezL6RwEE/iMcm+tZnXeoZtKuOq6ft8+CqzEkrIgx1fPoQA==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "minimist": "^1.2.5"
+          }
+        },
+        "loader-utils": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/loader-utils/-/loader-utils-2.0.0.tgz",
+          "integrity": "sha512-rP4F0h2RaWSvPEkD7BLDFQnvSf+nK+wr3ESUjNTyAGobqrijmW92zc+SO6d4p4B1wh7+B/Jg1mkQe5NYUEHtHQ==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "big.js": "^5.2.2",
+            "emojis-list": "^3.0.0",
+            "json5": "^2.1.2"
+          }
+        },
         "locate-path": {
           "version": "5.0.0",
           "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-5.0.0.tgz",
@@ -679,6 +746,16 @@
             "minipass": "^3.1.1"
           }
         },
+        "supports-color": {
+          "version": "7.2.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+          "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "has-flag": "^4.0.0"
+          }
+        },
         "terser-webpack-plugin": {
           "version": "2.3.8",
           "resolved": "https://registry.npmjs.org/terser-webpack-plugin/-/terser-webpack-plugin-2.3.8.tgz",
@@ -695,6 +772,18 @@
             "terser": "^4.6.12",
             "webpack-sources": "^1.4.3"
           }
+        },
+        "vue-loader-v16": {
+          "version": "npm:vue-loader@16.1.2",
+          "resolved": "https://registry.npmjs.org/vue-loader/-/vue-loader-16.1.2.tgz",
+          "integrity": "sha512-8QTxh+Fd+HB6fiL52iEVLKqE9N1JSlMXLR92Ijm6g8PZrwIxckgpqjPDWRP5TWxdiPaHR+alUWsnu1ShQOwt+Q==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "chalk": "^4.1.0",
+            "hash-sum": "^2.0.0",
+            "loader-utils": "^2.0.0"
+          }
         }
       }
     },
@@ -11167,97 +11256,6 @@
         }
       }
     },
-    "vue-loader-v16": {
-      "version": "npm:vue-loader@16.1.2",
-      "resolved": "https://registry.npmjs.org/vue-loader/-/vue-loader-16.1.2.tgz",
-      "integrity": "sha512-8QTxh+Fd+HB6fiL52iEVLKqE9N1JSlMXLR92Ijm6g8PZrwIxckgpqjPDWRP5TWxdiPaHR+alUWsnu1ShQOwt+Q==",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "chalk": "^4.1.0",
-        "hash-sum": "^2.0.0",
-        "loader-utils": "^2.0.0"
-      },
-      "dependencies": {
-        "ansi-styles": {
-          "version": "4.3.0",
-          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
-          "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "color-convert": "^2.0.1"
-          }
-        },
-        "chalk": {
-          "version": "4.1.0",
-          "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.0.tgz",
-          "integrity": "sha512-qwx12AxXe2Q5xQ43Ac//I6v5aXTipYrSESdOgzrN+9XjgEpyjpKuvSGaN4qE93f7TQTlerQQ8S+EQ0EyDoVL1A==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "ansi-styles": "^4.1.0",
-            "supports-color": "^7.1.0"
-          }
-        },
-        "color-convert": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
-          "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "color-name": "~1.1.4"
-          }
-        },
-        "color-name": {
-          "version": "1.1.4",
-          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
-          "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
-          "dev": true,
-          "optional": true
-        },
-        "has-flag": {
-          "version": "4.0.0",
-          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
-          "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
-          "dev": true,
-          "optional": true
-        },
-        "json5": {
-          "version": "2.1.3",
-          "resolved": "https://registry.npmjs.org/json5/-/json5-2.1.3.tgz",
-          "integrity": "sha512-KXPvOm8K9IJKFM0bmdn8QXh7udDh1g/giieX0NLCaMnb4hEiVFqnop2ImTXCc5e0/oHz3LTqmHGtExn5hfMkOA==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "minimist": "^1.2.5"
-          }
-        },
-        "loader-utils": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/loader-utils/-/loader-utils-2.0.0.tgz",
-          "integrity": "sha512-rP4F0h2RaWSvPEkD7BLDFQnvSf+nK+wr3ESUjNTyAGobqrijmW92zc+SO6d4p4B1wh7+B/Jg1mkQe5NYUEHtHQ==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "big.js": "^5.2.2",
-            "emojis-list": "^3.0.0",
-            "json5": "^2.1.2"
-          }
-        },
-        "supports-color": {
-          "version": "7.2.0",
-          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
-          "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "has-flag": "^4.0.0"
-          }
-        }
-      }
-    },
     "vue-prismjs": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/vue-prismjs/-/vue-prismjs-1.2.0.tgz",
diff --git a/client/public/desktop.ini b/client/public/desktop.ini
new file mode 100644
index 0000000000000000000000000000000000000000..995bb2e84cfd5df6cfd67a0151684a5b03615531
--- /dev/null
+++ b/client/public/desktop.ini
@@ -0,0 +1,5 @@
+[.ShellClassInfo]
+InfoTip=Ce dossier est partagé en ligne.
+IconFile=C:\Program Files\Google\Drive\googledrivesync.exe
+IconIndex=16
+    
\ No newline at end of file
diff --git a/client/src/App.vue b/client/src/App.vue
index 3b3598e2158cc26c16c4193cc167c6b1fdac428c..c51a8c81fc1ebba3407ff06243f0938b4404654d 100644
--- a/client/src/App.vue
+++ b/client/src/App.vue
@@ -45,7 +45,8 @@
           <div class="navbar-end">
             
             <div class="buttons has-addons">
-              <a class="navbar-item button is-info" @click="connectUsb()"><span><i class="fab fa-usb"></i> Connexion lecteur NFC</span></a>
+              <a v-if="!usbConnected" class="navbar-item button is-info" @click="connectUsb()"><span><i class="fab fa-usb"></i> Connexion lecteur NFC USB</span></a>
+              <a v-else class="navbar-item button is-danger" @click="disconnectUsb()"><span><i class="fab fa-usb"></i> Déconnexion lecteur NFC USB</span></a>
               <a v-if="!$store.state.isLoggedIn" class="navbar-item button"
                 ><router-link to="/register"
                   ><span
@@ -64,7 +65,7 @@
               >
               <a
                 v-if="$store.state.isLoggedIn"
-                class="navbar-item button is-danger"
+                class="navbar-item button is-dark"
                 @click="logout()"
                 ><span><i class="fas fa-sign-out-alt"></i> Déconnexion</span></a
               >
@@ -90,7 +91,8 @@ export default {
   name: "app",
   data() {
     return {
-      showNav: false
+      showNav: false,
+      usbConnected: false
     };
   },
   created() {
@@ -103,6 +105,11 @@ export default {
         if (response.data != "ok")
           this.$store.commit("logout");
       });
+    setTimeout(() => this.checkNfcModule(), 1000)
+    setInterval(() => {
+      this.checkNfcModule()
+    }, 50000)
+      
   },
   methods: {
     logout() {
@@ -114,12 +121,21 @@ export default {
     },
     connectUsb() {
       this.usbNfcReader.selectAndConnect()
+      this.setTimeout(() => this.checkNfcModule(), 1000);
     },
-    readTag() {
-      this.usbNfcReader.sendString('READ_')
+    disconnectUsb() {
+      this.usbNfcReader.disconnect()
+      this.setTimeout(() => this.checkNfcModule(), 1000);
     },
-    readTagUid() {
-      this.usbNfcReader.sendString('GETID_')
+    checkNfcModule() {
+      this.usbNfcReader.ping().then(() => {
+        this.usbConnected = true;
+        console.log("Still connected to USB")
+      })
+      .catch(() => {
+        this.usbConnected = false;
+        console.log("Distconnected from USB !")
+      })
     }
   },
   components: {
diff --git a/client/src/assets/desktop.ini b/client/src/assets/desktop.ini
new file mode 100644
index 0000000000000000000000000000000000000000..995bb2e84cfd5df6cfd67a0151684a5b03615531
--- /dev/null
+++ b/client/src/assets/desktop.ini
@@ -0,0 +1,5 @@
+[.ShellClassInfo]
+InfoTip=Ce dossier est partagé en ligne.
+IconFile=C:\Program Files\Google\Drive\googledrivesync.exe
+IconIndex=16
+    
\ No newline at end of file
diff --git a/client/src/assets/img/desktop.ini b/client/src/assets/img/desktop.ini
new file mode 100644
index 0000000000000000000000000000000000000000..995bb2e84cfd5df6cfd67a0151684a5b03615531
--- /dev/null
+++ b/client/src/assets/img/desktop.ini
@@ -0,0 +1,5 @@
+[.ShellClassInfo]
+InfoTip=Ce dossier est partagé en ligne.
+IconFile=C:\Program Files\Google\Drive\googledrivesync.exe
+IconIndex=16
+    
\ No newline at end of file
diff --git a/client/src/components/SchoolManager.vue b/client/src/components/SchoolManager.vue
index 0836eb9ad0871e4a9457ae4e7bf50fc45c38e5b8..643f521799c2db320f14c90e3b2119fd70ff1324 100644
--- a/client/src/components/SchoolManager.vue
+++ b/client/src/components/SchoolManager.vue
@@ -3,7 +3,7 @@
     <div class="message is-medium">
       <div class="message-header">Mes équipes</div>
       <div class="message-body">
-        <div v-for="team in teams" :key="team._id">
+        <div @addedTeam="updateTeams" v-for="team in teams" :key="team._id">
           <TeamElement :team="team" :teamArray="teams" />
         </div>
         <TeamAdder :teamArray="teams"></TeamAdder>
@@ -37,7 +37,11 @@ export default {
   },
 
   mounted() {},
-  methods: {}
+  methods: {
+    updateTeams(teams) {
+      this.teams = teams;
+    }
+  }
 };
 </script>
 
diff --git a/client/src/components/TeamAdder.vue b/client/src/components/TeamAdder.vue
index f6b004e5773f553dab5c7abd5d91d23347fc35ca..22997ee323f71219a7be23c79c4daec0df3ebcff 100644
--- a/client/src/components/TeamAdder.vue
+++ b/client/src/components/TeamAdder.vue
@@ -47,7 +47,7 @@ export default {
   },
   data() {
     return {
-      team: { name: "", members: [] },
+      team: { name: "", members: [], cardId:"" },
       count: 1
     };
   },
@@ -59,6 +59,7 @@ export default {
         .then(response => {
           console.log("Team créée !", response);
           this.teamArray.push(this.team);
+          this.$emit('addedTeam', this.teamArray);
           this.team = { name: "", members: [] };
         });
     },
diff --git a/client/src/components/TeamElement.vue b/client/src/components/TeamElement.vue
index f548d9ef3f70c09b8dc8933e7184539f8d055438..b4c5bce200f67ce712488753a330a466850cb76f 100644
--- a/client/src/components/TeamElement.vue
+++ b/client/src/components/TeamElement.vue
@@ -15,13 +15,13 @@
             </ul>
           </div>
           <div class="level-right level-item column has-text-centered">
-            <p class="heading" v-if="team.cardId">
+            <p class="heading" v-if="this.team.cardId != ''">
               Carte associée avec l'ID : {{ team.cardId }}
             </p>
             <p class="heading" v-else>
               Aucune carte associée !
             </p>
-            <button v-if="team.cardId" @click="removeCardPairing()" class="button is-danger">
+            <button v-if="this.team.cardId != ''" @click="removeCardPairing()" class="button is-danger">
               Dissocier la carte
             </button>
             <button
@@ -33,7 +33,7 @@
             </button>
           </div>
         </div>
-        <div>
+        <div v-if="team.donePuzzles">
           <p v-if="team.donePuzzles.length > 0" class="is-size-4">
             <strong>Puzzles effectués :</strong>
           </p>
@@ -83,7 +83,9 @@
             </div>
             <div class="message-body">
               Veuillez scanner une carte sur le lecteur pour l'associer à cette
-              équipe.
+              équipe. <br>
+              <br>
+              ATTENTION : Ceci effacera le contenu actuel de cette carte !
             </div>
           </div>
         </div>
@@ -92,6 +94,24 @@
           @click="showPairingModal = false"
         ></button>
       </div>
+
+      <div class="modal" :class="{ 'is-active': showAlreadyPairedError}" >
+        <div class="modal-background"></div>
+        <div class="modal-content">
+          <div class="message is-danger">
+            <div class="message-header">
+              Carte déjà associée à une autre équipe !
+            </div>
+            <div class="message-body">
+              Erreur : cette carte est déjà associée à une autre équipe (de votre établissement ou non). Merci de la dissocier de l'équipe originale.
+            </div>
+          </div>
+        </div>
+        <button
+          class="modal-close is-large"
+          @click="showAlreadyPairedError = false"
+        ></button>
+      </div>
     </span>
   </div>
 </template>
@@ -105,7 +125,8 @@ export default {
   },
   data() {
     return {
-      showPairingModal: false
+      showPairingModal: false,
+      showAlreadyPairedError: false
     };
   },
 
@@ -126,23 +147,30 @@ export default {
 
     manageCardPairing: function() {
       this.showPairingModal = !this.showPairingModal
-      this.$parent.$parent.usbNfcReader.readTagUid()
-      .then(response => {
-        console.log(response)
-        this.team.cardId = response
-        let uri = `//localhost:3000/school/updateTeamCard/${this.team._id}`;
-        this.axios
-        .post(uri, this.team, { withCredentials: true })
-        .then(response => {
-          console.log("Carte ajoutée !", response);
-          this.showPairingModal = false;
-        }).catch(response => {
-          this.showPairingModal = false;
-          this.team.cardId = null;
-          console.log("Carte déjà utilisée !", response)
-        })
-        
+      console.log("Trying to reset card")
+      this.$parent.$parent.usbNfcReader.writeCard("team").then(response=> {
+        console.log("Reset successful, trying to read uid", response)
+        this.$parent.$parent.usbNfcReader.readTagUid()
+        .then(response => {   
+          let uri = `//localhost:3000/school/updateTeamCard/${this.team._id}`;
+          this.axios
+          .post(uri, {cardId: response}, { withCredentials: true })
+          .then(() => {
+            console.log("Carte ajoutée !");
+            this.team.cardId = response   
+            this.showPairingModal = false;
+            this.$forceUpdate()
+          }).catch(response => {
+            this.showPairingModal = false;
+            this.showAlreadyPairedError = true;
+            this.team.cardId = "";
+            this.$forceUpdate()
+            console.log("Carte déjà utilisée !", response)
+          })
+      
         })
+      })
+      
     },
 
     removeCardPairing: function() {
@@ -151,9 +179,14 @@ export default {
         .post(uri, this.team, { withCredentials: true })
         .then(response => {
           console.log("Carte dissociée !", response);
-          this.team.cardId = null;
+          this.team.cardId = "";
+          this.$forceUpdate()
         });
     }
+  },
+  created: function()  {
+    if (!this.team.cardId) this.team.cardId = ""
+    if (this.team.cardId == null) this.team.cardId =""
   }
 };
 </script>
diff --git a/client/src/components/desktop.ini b/client/src/components/desktop.ini
new file mode 100644
index 0000000000000000000000000000000000000000..995bb2e84cfd5df6cfd67a0151684a5b03615531
--- /dev/null
+++ b/client/src/components/desktop.ini
@@ -0,0 +1,5 @@
+[.ShellClassInfo]
+InfoTip=Ce dossier est partagé en ligne.
+IconFile=C:\Program Files\Google\Drive\googledrivesync.exe
+IconIndex=16
+    
\ No newline at end of file
diff --git a/client/src/desktop.ini b/client/src/desktop.ini
new file mode 100644
index 0000000000000000000000000000000000000000..995bb2e84cfd5df6cfd67a0151684a5b03615531
--- /dev/null
+++ b/client/src/desktop.ini
@@ -0,0 +1,5 @@
+[.ShellClassInfo]
+InfoTip=Ce dossier est partagé en ligne.
+IconFile=C:\Program Files\Google\Drive\googledrivesync.exe
+IconIndex=16
+    
\ No newline at end of file
diff --git a/client/src/usbNfcReader.js b/client/src/usbNfcReader.js
index 5a680ca60105bc4b84aaa874c83d98f7a2b84bc7..343ce93c2a26b329138be28f9e56e4c70a0c914d 100644
--- a/client/src/usbNfcReader.js
+++ b/client/src/usbNfcReader.js
@@ -12,6 +12,7 @@ export default class UsbNfcReader {
                 console.log("Port choisi :", this.port);
                 this.connect();
             }
+        this.locked = false;
         });
     }
 
@@ -70,6 +71,61 @@ export default class UsbNfcReader {
         }
       })
     }
+
+    writeCard(content) {
+      return new Promise((resolve, reject) => {
+        this.sendString("WRITE_" + content)
+        this.port.onReceive = data => {
+          let textDecoder = new TextDecoder();
+          let msg = textDecoder.decode(data);
+          msg = msg.replace(/(\r\n|\n|\r)/gm, "");
+          console.log("recu ", msg)
+          if (msg == "WRITTEN;") {
+            console.log("wrote team message")
+            resolve("")
+          } else if (!msg.includes("RECEIVED_WRITE")) {
+            reject("Write : Bad message structure received")
+          }
+        }
+      })
+    }
+
+    cleanCard() {
+      return new Promise((resolve, reject) => {
+        this.sendString("CLEAN_")
+        this.port.onReceive = data => {
+          let textDecoder = new TextDecoder();
+          let msg = textDecoder.decode(data);
+          msg = msg.replace(/(\r\n|\n|\r)/gm, "");
+          console.log("recu ", msg)
+          if (msg == "CLEANED;") {
+            console.log("Cleaned card")
+            resolve("")
+          } else if (msg != "RECEIVED_CLEAN;") {
+            reject("Clean : Bad message structure received")
+          }
+        }
+      })
+    }
+
+    ping() {
+      return new Promise((resolve, reject) => {
+        this.sendString("PING_")
+        var timeout = setTimeout(() => {
+          reject("ping timeout")}
+          
+          , 2000);
+        this.port.onReceive = data => {
+          let textDecoder = new TextDecoder();
+          let msg = textDecoder.decode(data);
+          msg = msg.replace(/(\r\n|\n|\r)/gm, "");
+          if (msg == "PONG;") {
+            clearTimeout(timeout)
+            resolve("")
+          } 
+        }
+      })
+    }
     //Envoie ce string à l'Arduino
     sendString(str) {
         if (this.port !== undefined) {
diff --git a/desktop.ini b/desktop.ini
new file mode 100644
index 0000000000000000000000000000000000000000..995bb2e84cfd5df6cfd67a0151684a5b03615531
--- /dev/null
+++ b/desktop.ini
@@ -0,0 +1,5 @@
+[.ShellClassInfo]
+InfoTip=Ce dossier est partagé en ligne.
+IconFile=C:\Program Files\Google\Drive\googledrivesync.exe
+IconIndex=16
+    
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000000000000000000000000000000000000..e075b34ea39d29d586378441aede6a1d71780a9a
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,1173 @@
+{
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+  "lockfileVersion": 1,
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+      "requires": {
+        "debug": "4"
+      }
+    },
+    "ajv": {
+      "version": "6.12.6",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
+      "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
+      "requires": {
+        "fast-deep-equal": "^3.1.1",
+        "fast-json-stable-stringify": "^2.0.0",
+        "json-schema-traverse": "^0.4.1",
+        "uri-js": "^4.2.2"
+      }
+    },
+    "ansi-regex": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8="
+    },
+    "asn1": {
+      "version": "0.2.4",
+      "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.4.tgz",
+      "integrity": "sha512-jxwzQpLQjSmWXgwaCZE9Nz+glAG01yF1QnWgbhGwHI5A6FRIEY6IVqtHhIepHqI7/kyEyQEagBC5mBEFlIYvdg==",
+      "requires": {
+        "safer-buffer": "~2.1.0"
+      }
+    },
+    "assert-plus": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
+      "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU="
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+    "async": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.0.tgz",
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diff --git a/server/db/desktop.ini b/server/db/desktop.ini
new file mode 100644
index 0000000000000000000000000000000000000000..995bb2e84cfd5df6cfd67a0151684a5b03615531
--- /dev/null
+++ b/server/db/desktop.ini
@@ -0,0 +1,5 @@
+[.ShellClassInfo]
+InfoTip=Ce dossier est partagé en ligne.
+IconFile=C:\Program Files\Google\Drive\googledrivesync.exe
+IconIndex=16
+    
\ No newline at end of file
diff --git a/server/db/team.route.js b/server/db/team.route.js
index 54095e66785c514189d26e424f31401e37ac358d..060ec5141324afb67b8d0b1b71baa14cc7ad0027 100644
--- a/server/db/team.route.js
+++ b/server/db/team.route.js
@@ -9,6 +9,7 @@ router.route('/addTeam').post(function (req, res) {
   if (req.user) {
     let team = new Team(req.body)
     team.schoolUser = req.user.username
+    team.cardId = "";
     console.log("Trying to add team :", team)
     team.save().then(() => {
       res.status(200).json({'business': 'business in added successfully'});
diff --git a/server/desktop.ini b/server/desktop.ini
new file mode 100644
index 0000000000000000000000000000000000000000..995bb2e84cfd5df6cfd67a0151684a5b03615531
--- /dev/null
+++ b/server/desktop.ini
@@ -0,0 +1,5 @@
+[.ShellClassInfo]
+InfoTip=Ce dossier est partagé en ligne.
+IconFile=C:\Program Files\Google\Drive\googledrivesync.exe
+IconIndex=16
+    
\ No newline at end of file
diff --git a/server/package-lock.json b/server/package-lock.json
index 0ad7ebcb10532fe28539771d34167b7c738714ac..c976f4408c9f98b6fe55d81c12caa2957fb309c8 100644
--- a/server/package-lock.json
+++ b/server/package-lock.json
@@ -191,6 +191,11 @@
       "resolved": "https://registry.npmjs.org/bson/-/bson-1.1.5.tgz",
       "integrity": "sha512-kDuEzldR21lHciPQAIulLs1LZlCXdLziXI6Mb/TDkwXhb//UORJNPXgcRs2CuO4H0DcMkpfT3/ySsP3unoZjBg=="
     },
+    "bson-objectid": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/bson-objectid/-/bson-objectid-1.3.1.tgz",
+      "integrity": "sha512-eQBNQXsisEAXlwiSy8zRNZdW2xDBJaEVkTPbodYR9hGxxtE548Qq7ilYOd8WAQ86xF7NRUdiWSQ1pa/TkKiE2A=="
+    },
     "bulma": {
       "version": "0.9.1",
       "resolved": "https://registry.npmjs.org/bulma/-/bulma-0.9.1.tgz",
@@ -233,6 +238,15 @@
         }
       }
     },
+    "call-bind": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/call-bind/-/call-bind-1.0.2.tgz",
+      "integrity": "sha512-7O+FbCihrB5WGbFYesctwmTKae6rOiIzmz1icreWJ+0aA7LJfuqhEso2T9ncpcFtzMQtzXf2QGGueWJGTYsqrA==",
+      "requires": {
+        "function-bind": "^1.1.1",
+        "get-intrinsic": "^1.0.2"
+      }
+    },
     "camelcase": {
       "version": "5.3.1",
       "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
@@ -294,6 +308,11 @@
       "integrity": "sha512-y4coMcylgSCdVinjiDBuR8PCC2bLjyGTwEmPb9NHR/QaNU6EUOXcTY/s6VjGMD6ENSEaeQYHCY0GNGS5jfMwPw==",
       "dev": true
     },
+    "clone": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/clone/-/clone-2.1.2.tgz",
+      "integrity": "sha1-G39Ln1kfHo+DZwQBYANFoCiHQ18="
+    },
     "clone-response": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/clone-response/-/clone-response-1.0.2.tgz",
@@ -403,6 +422,19 @@
         "mimic-response": "^1.0.0"
       }
     },
+    "deep-equal": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/deep-equal/-/deep-equal-1.1.1.tgz",
+      "integrity": "sha512-yd9c5AdiqVcR+JjcwUQb9DkhJc8ngNr0MahEBGvDiJw8puWab2yZlh+nkasOnZP+EGTAP6rRp2JzJhJZzvNF8g==",
+      "requires": {
+        "is-arguments": "^1.0.4",
+        "is-date-object": "^1.0.1",
+        "is-regex": "^1.0.4",
+        "object-is": "^1.0.1",
+        "object-keys": "^1.1.1",
+        "regexp.prototype.flags": "^1.2.0"
+      }
+    },
     "deep-extend": {
       "version": "0.6.0",
       "resolved": "https://registry.npmjs.org/deep-extend/-/deep-extend-0.6.0.tgz",
@@ -415,6 +447,14 @@
       "integrity": "sha512-0ISdNousHvZT2EiFlZeZAHBUvSxmKswVCEf8hW7KWgG4a8MVEu/3Vb6uWYozkjylyCxe0JBIiRB1jV45S70WVQ==",
       "dev": true
     },
+    "define-properties": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/define-properties/-/define-properties-1.1.3.tgz",
+      "integrity": "sha512-3MqfYKj2lLzdMSf8ZIZE/V+Zuy+BgD6f164e8K2w7dgnpKArBDerGYpM46IYYcjnkdPNMjPk9A6VFB8+3SKlXQ==",
+      "requires": {
+        "object-keys": "^1.0.12"
+      }
+    },
     "denque": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/denque/-/denque-1.4.1.tgz",
@@ -590,11 +630,26 @@
       "dev": true,
       "optional": true
     },
+    "function-bind": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
+      "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A=="
+    },
     "generaterr": {
       "version": "1.5.0",
       "resolved": "https://registry.npmjs.org/generaterr/-/generaterr-1.5.0.tgz",
       "integrity": "sha1-sM62zFFk3yoGEzjMNAqGFTlcUvw="
     },
+    "get-intrinsic": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.1.1.tgz",
+      "integrity": "sha512-kWZrnVM42QCiEA2Ig1bG8zjoIMOgxWwYCEeNdwY6Tv/cOSeGpcoX4pXHfKUxNKVoArnrEr2e9srnAxxGIraS9Q==",
+      "requires": {
+        "function-bind": "^1.1.1",
+        "has": "^1.0.3",
+        "has-symbols": "^1.0.1"
+      }
+    },
     "get-stream": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-4.1.0.tgz",
@@ -647,12 +702,25 @@
       "integrity": "sha512-WjKPNJF79dtJAVniUlGGWHYGz2jWxT6VhN/4m1NdkbZ2nOsEF+cI1Edgql5zCRhs/VsQYRvrXctxktVXZUkixw==",
       "dev": true
     },
+    "has": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/has/-/has-1.0.3.tgz",
+      "integrity": "sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==",
+      "requires": {
+        "function-bind": "^1.1.1"
+      }
+    },
     "has-flag": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
       "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0=",
       "dev": true
     },
+    "has-symbols": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.0.2.tgz",
+      "integrity": "sha512-chXa79rL/UC2KlX17jo3vRGz0azaWEx5tGqZg5pO3NUyEJVB17dMruQlzCCOfUvElghKcm5194+BCRvi2Rv/Gw=="
+    },
     "has-yarn": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/has-yarn/-/has-yarn-2.1.0.tgz",
@@ -719,6 +787,14 @@
       "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.1.tgz",
       "integrity": "sha512-0KI/607xoxSToH7GjN1FfSbLoU0+btTicjsQSWQlh/hZykN8KpmMf7uYwPW3R+akZ6R/w18ZlXSHBYXiYUPO3g=="
     },
+    "is-arguments": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/is-arguments/-/is-arguments-1.1.0.tgz",
+      "integrity": "sha512-1Ij4lOMPl/xB5kBDn7I+b2ttPMKa8szhEIrXDuXQD/oe3HJLTLhqhgGspwgyGd6MOywBUqVvYicF72lkgDnIHg==",
+      "requires": {
+        "call-bind": "^1.0.0"
+      }
+    },
     "is-binary-path": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/is-binary-path/-/is-binary-path-2.1.0.tgz",
@@ -737,6 +813,11 @@
         "ci-info": "^2.0.0"
       }
     },
+    "is-date-object": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/is-date-object/-/is-date-object-1.0.2.tgz",
+      "integrity": "sha512-USlDT524woQ08aoZFzh3/Z6ch9Y/EWXEHQ/AaRN0SkKq4t2Jw2R2339tSXmwuVoY7LLlBCbOIlx2myP/L5zk0g=="
+    },
     "is-extglob": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-2.1.1.tgz",
@@ -792,6 +873,15 @@
       "integrity": "sha512-/2UGPSgmtqwo1ktx8NDHjuPwZWmHhO+gj0f93EkhLB5RgW9RZevWYYlIkS6zePc6U2WpOdQYIwHe9YC4DWEBVg==",
       "dev": true
     },
+    "is-regex": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/is-regex/-/is-regex-1.1.2.tgz",
+      "integrity": "sha512-axvdhb5pdhEVThqJzYXwMlVuZwC+FF2DpcOhTS+y/8jVq4trxyPgfcwIxIKiyeuLlSQYKkmUaPQJ8ZE4yNKXDg==",
+      "requires": {
+        "call-bind": "^1.0.2",
+        "has-symbols": "^1.0.1"
+      }
+    },
     "is-typedarray": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/is-typedarray/-/is-typedarray-1.0.0.tgz",
@@ -838,6 +928,11 @@
         "package-json": "^6.3.0"
       }
     },
+    "lodash": {
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
+    },
     "lowercase-keys": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/lowercase-keys/-/lowercase-keys-1.0.1.tgz",
@@ -929,6 +1024,35 @@
       "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==",
       "dev": true
     },
+    "modifyjs": {
+      "version": "0.3.1",
+      "resolved": "https://registry.npmjs.org/modifyjs/-/modifyjs-0.3.1.tgz",
+      "integrity": "sha1-ckaUd/tMRwlx1hemO6G73pqqx88=",
+      "requires": {
+        "clone": "^2.1.1",
+        "deep-equal": "^1.0.1"
+      }
+    },
+    "mongo-mock": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/mongo-mock/-/mongo-mock-4.0.0.tgz",
+      "integrity": "sha512-N2BSxfUJ1ZR4u6ps16mRl9hdDTdK0F4lj+GxRUTsfZsr+LNKtFxmYJ+cXz33a9c5aQWmIDpg8kV1kq2mUx9dNA==",
+      "requires": {
+        "bson-objectid": "^1.2.5",
+        "debug": "^2.6.9",
+        "lodash": "^4.17.13",
+        "modifyjs": "^0.3.1",
+        "object-assign-deep": "^0.4.0",
+        "sift": "^11.1.8"
+      },
+      "dependencies": {
+        "sift": {
+          "version": "11.1.8",
+          "resolved": "https://registry.npmjs.org/sift/-/sift-11.1.8.tgz",
+          "integrity": "sha512-QoNDdWFzFrtoNdYeJeDjhceLiuHOGlLacVxE7Y5QX/teBeYBWRM6s4RatraBoRvEsoDr/bsjeCmEH0hSHCJChQ=="
+        }
+      }
+    },
     "mongodb": {
       "version": "3.6.3",
       "resolved": "https://registry.npmjs.org/mongodb/-/mongodb-3.6.3.tgz",
@@ -1076,6 +1200,25 @@
       "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
       "integrity": "sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM="
     },
+    "object-assign-deep": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/object-assign-deep/-/object-assign-deep-0.4.0.tgz",
+      "integrity": "sha512-54Uvn3s+4A/cMWx9tlRez1qtc7pN7pbQ+Yi7mjLjcBpWLlP+XbSHiHbQW6CElDiV4OvuzqnMrBdkgxI1mT8V/Q=="
+    },
+    "object-is": {
+      "version": "1.1.5",
+      "resolved": "https://registry.npmjs.org/object-is/-/object-is-1.1.5.tgz",
+      "integrity": "sha512-3cyDsyHgtmi7I7DfSSI2LDp6SK2lwvtbg0p0R1e0RvTqF5ceGx+K2dfSjm1bKDMVCFEDAQvy+o8c6a7VujOddw==",
+      "requires": {
+        "call-bind": "^1.0.2",
+        "define-properties": "^1.1.3"
+      }
+    },
+    "object-keys": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/object-keys/-/object-keys-1.1.1.tgz",
+      "integrity": "sha512-NuAESUOUMrlIXOfHKzD6bpPu3tYt3xvjNdRIQ+FeT0lNb4K8WR70CaDxhuNguS2XG+GjkyMwOzsN5ZktImfhLA=="
+    },
     "on-finished": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.3.0.tgz",
@@ -1299,6 +1442,15 @@
       "resolved": "https://registry.npmjs.org/regexp-clone/-/regexp-clone-1.0.0.tgz",
       "integrity": "sha512-TuAasHQNamyyJ2hb97IuBEif4qBHGjPHBS64sZwytpLEqtBQ1gPJTnOaQ6qmpET16cK14kkjbazl6+p0RRv0yw=="
     },
+    "regexp.prototype.flags": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/regexp.prototype.flags/-/regexp.prototype.flags-1.3.1.tgz",
+      "integrity": "sha512-JiBdRBq91WlY7uRJ0ds7R+dU02i6LKi8r3BuQhNXn+kmeLN+EfHhfjqMRis1zJxnlu88hq/4dx0P2OP3APRTOA==",
+      "requires": {
+        "call-bind": "^1.0.2",
+        "define-properties": "^1.1.3"
+      }
+    },
     "registry-auth-token": {
       "version": "4.2.1",
       "resolved": "https://registry.npmjs.org/registry-auth-token/-/registry-auth-token-4.2.1.tgz",
diff --git a/server/package.json b/server/package.json
index a20cea742911a48cce5effb6b65f4dcf6dbbb3d6..d6e10baf1d816a9b32b85854cdd550ddbb4d776c 100644
--- a/server/package.json
+++ b/server/package.json
@@ -18,6 +18,7 @@
     "cors": "^2.8.5",
     "express": "^4.17.1",
     "express-session": "^1.17.1",
+    "mongo-mock": "^4.0.0",
     "mongoose": "^5.11.8",
     "passport": "^0.4.1",
     "passport-local": "^1.0.0",
diff --git a/server/server.js b/server/server.js
index cd87ecf73386dcc4d3e6e31ab75cbca31c542a11..d1f959f895578d210d4b23e2ee424d2862d7bead 100644
--- a/server/server.js
+++ b/server/server.js
@@ -2,6 +2,9 @@ const express = require('express');
 const bodyParser = require('body-parser');
 const cors = require('cors');
 const mongoose = require('mongoose');
+
+
+
 const config = require('./db.js');
 const teamRoute = require('./db/team.route')
 const passport = require('passport');