diff --git a/html/saraR4.html b/html/saraR4.html
index 8a9aa44..b5aee77 100755
--- a/html/saraR4.html
+++ b/html/saraR4.html
@@ -186,13 +186,10 @@
                 <div class="card-body">
                   <p class="card-text"><strong>LED status connexion (PCB)</strong></p>
                   <p class="text-muted small mb-2">Active la LED bleue du PCB qui indique l'état de la connexion réseau (GPIO 16 du modem).</p>
-                  <button class="btn btn-primary mb-2" onclick="getData_saraR4('ttyAMA2', 'AT+UGPIOC=16,2', 5)">Activer LED</button>
-                  <div id="loading_ttyAMA2_AT_UGPIOC_16_2" class="spinner-border spinner-border-sm" style="display: none;" role="status"></div>
-                  <div id="response_ttyAMA2_AT_UGPIOC_16_2"></div>
-                  <hr>
-                  <button class="btn btn-secondary mb-2" onclick="getData_saraR4('ttyAMA2', 'AT+UGPIOC=16,255', 5)">Désactiver LED</button>
-                  <div id="loading_ttyAMA2_AT_UGPIOC_16_255" class="spinner-border spinner-border-sm" style="display: none;" role="status"></div>
-                  <div id="response_ttyAMA2_AT_UGPIOC_16_255"></div>
+                  <button class="btn btn-primary mb-2" onclick="sendLedCommand('AT+UGPIOC=16,2', 'Activer')">Activer LED</button>
+                  <button class="btn btn-secondary mb-2" onclick="sendLedCommand('AT+UGPIOC=16,255', 'Désactiver')">Désactiver LED</button>
+                  <div id="loading_led" class="spinner-border spinner-border-sm" style="display: none;" role="status"></div>
+                  <div id="response_led"></div>
                 </div>
               </div>
             </div>
@@ -1122,6 +1119,42 @@ function hardwareRebootSara() {
     });
 }
 
+function sendLedCommand(command, label) {
+    $("#loading_led").show();
+    $("#response_led").empty();
+
+    $.ajax({
+        url: 'launcher.php?type=sara&port=ttyAMA2&command=' + encodeURIComponent(command) + '&timeout=5',
+        dataType: 'text',
+        method: 'GET',
+        timeout: 10000,
+        success: function(response) {
+            $("#loading_led").hide();
+            if (response.indexOf("OK") !== -1) {
+                $("#response_led").html(`
+                    <div class="alert alert-success py-2 mt-2">
+                        <strong>${label} — OK</strong><br>
+                        <small>Commande <code>${command}</code> exécutée avec succès.</small>
+                    </div>`);
+            } else {
+                $("#response_led").html(`
+                    <div class="alert alert-warning py-2 mt-2">
+                        <strong>${label} — Réponse inattendue</strong><br>
+                        <small><code>${response}</code></small>
+                    </div>`);
+            }
+        },
+        error: function(xhr, status, error) {
+            $("#loading_led").hide();
+            $("#response_led").html(`
+                <div class="alert alert-danger py-2 mt-2">
+                    <strong>Erreur de connexion avec le modem</strong><br>
+                    <small>${error || 'Pas de réponse'}</small>
+                </div>`);
+        }
+    });
+}
+
 function getData_saraR4(port, command, timeout){
         console.log("Data from SaraR4");
         console.log("Port: " + port );