diff --git a/.vscode/tasks.json b/.vscode/tasks.json
new file mode 100644
index 0000000..d1b1651
--- /dev/null
+++ b/.vscode/tasks.json
@@ -0,0 +1,16 @@
+{
+    // See https://go.microsoft.com/fwlink/?LinkId=733558
+    // for the documentation about the tasks.json format
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "taskName": "mbed compile (debug)",
+            "type": "shell",
+            "command": "mbed compile --profile mbed-os/tools/profiles/debug.json",
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            }
+        }
+    ]
+}
\ No newline at end of file
diff --git a/main.cpp b/main.cpp
index ff671ad..6f1e0f9 100644
--- a/main.cpp
+++ b/main.cpp
@@ -9,7 +9,19 @@ static DigitalOut led2(LED2);
 static DigitalOut led3(LED6);
 static DigitalOut led4(LED5);
 
+static Serial s_debug_serial_port(SERIAL_TX, SERIAL_RX);
+
 static Thread s_thread_blink;
+static Thread s_thread_recurrent_1;
+
+static EventQueue s_eq_recurrent_1;
+
+static Timer s_timer_1;
+
+void event_proc_recurrent_1(char c)
+{
+    printf("[event_proc_recurrent_1] Elapsed %d ms\n",s_timer_1.read_ms());
+}
 
 void thread_proc_blink(std::vector<DigitalOut> *pleds)
 {
@@ -26,10 +38,17 @@ void thread_proc_blink(std::vector<DigitalOut> *pleds)
 
 int main()
 {
+    s_debug_serial_port.baud(115200);
+    
     s_leds.push_back(led1);
     s_leds.push_back(led2);
     s_leds.push_back(led3);
     s_leds.push_back(led4);
 
+    s_eq_recurrent_1.call_every(1000,event_proc_recurrent_1,'.');
+
     s_thread_blink.start(callback(thread_proc_blink, &s_leds));
+
+    s_timer_1.start();
+    s_thread_recurrent_1.start(callback(&s_eq_recurrent_1,&EventQueue::dispatch_forever));
 }
\ No newline at end of file