diff --git a/html/launcher.php b/html/launcher.php
index 4d9cceb..3e49ed4 100755
--- a/html/launcher.php
+++ b/html/launcher.php
@@ -61,6 +61,12 @@ if ($type == "sys_RTC_module_time") {
     echo $output;
 }
 
+if ($type == "sara_ping") {
+    $command = 'sudo /usr/bin/python3 /var/www/nebuleair_pro_4g/SARA/sara_ping.py';
+    $output = shell_exec($command);
+    echo $output;
+}
+
 if ($type == "git_pull") {
     $command = 'sudo git pull';
     $output = shell_exec($command);
diff --git a/html/saraR4.html b/html/saraR4.html
index 31cdf9b..b11b2de 100755
--- a/html/saraR4.html
+++ b/html/saraR4.html
@@ -225,6 +225,24 @@
           </div>
         </div>
       -->
+      <h3>Test HTTP server comm.</h3>
+      <div class="row mb-3">
+      <!-- SET URL -->
+    
+        <div class="col-sm-4">
+          <div class="card">
+            <div class="card-body">
+              <p class="card-text">Test communication with the server.</p>
+              <button class="btn btn-primary" onclick="ping_test()">Test</button>
+              <div id="loading_ping" class="spinner-border spinner-border-sm" style="display: none;" role="status"></div>
+              <div id="response_ping"></div>
+            </div>
+          </div>
+        </div>
+    
+ 
+      </div>
+
         <h3>Send message (test)</h3>
         <div class="row mb-3">
         <!-- SET URL -->
@@ -543,6 +561,27 @@ function setURL_saraR4(port, url){
           });
       }
 
+function ping_test(port, url){
+  console.log("Test ping to data.nebuleair.fr:");
+  $("#loading_ping").show();
+          $.ajax({
+          url: 'launcher.php?type=sara_ping',
+          dataType: 'text',
+          //dataType: 'json', // Specify that you expect a JSON response
+          method: 'GET', // Use GET or POST depending on your needs
+          success: function(response) {
+                      console.log(response);
+                      $("#loading_ping").hide();
+                      // Replace newline characters with <br> tags
+                      const formattedResponse = response.replace(/\n/g, "<br>");
+                      $("#response_ping").html(formattedResponse);
+                  },
+                  error: function(xhr, status, error) {
+                      console.error('AJAX request failed:', status, error);
+                  }
+          });
+      }
+
 function writeMessage_saraR4(port, message, type){
   console.log(type +" message to SARA R4 memory (port "+port+" and message "+message+"):");
   $("#loading_"+port+"_message_write").show();