diff --git a/include/func_button.h b/include/func_button.h
index e82cbc6..3bb6864 100644
--- a/include/func_button.h
+++ b/include/func_button.h
@@ -1,11 +1,12 @@
 #include <Arduino.h>
+#include <Ticker.h>
 
 class FuncButton
 {
 private:
     uint8_t pressedTime;
+    Ticker scanner;
 
 public:
     FuncButton();
-    void Scan();
 };
diff --git a/src/client_network.cpp b/src/client_network.cpp
index de0cb40..d969993 100644
--- a/src/client_network.cpp
+++ b/src/client_network.cpp
@@ -16,7 +16,6 @@ ClientNetwork::ClientNetwork()
     while (WiFi.status() != WL_CONNECTED)
     {
         delay(1000);
-        funcButton->Scan();
     }
     statusLed->SetBlinkRate(StatusBlink::BlinkRate::RateAlwaysOff);
     url = "http://iot.vvzero.com/topuino/getdata?SN=";
diff --git a/src/func_button.cpp b/src/func_button.cpp
index 865a299..9dbc103 100644
--- a/src/func_button.cpp
+++ b/src/func_button.cpp
@@ -6,22 +6,35 @@
 
 extern UserData* userdataManager;
 
-FuncButton::FuncButton()
-{
-    pinMode(FUNC_BTN, INPUT);
-    pressedTime = 0;
-}
+static int pressedTime;
 
-void FuncButton::Scan()
+static void Scan()
 {
     if (digitalRead(FUNC_BTN) == PRESSED_STATUS) {
         pressedTime++;
-    } else {
-        pressedTime = 0;
+        return;
     }
-    if (pressedTime > 5) {
+
+    int count = pressedTime;
+    pressedTime = 0;
+    
+    if (count >= 10) {
+        // Factory reset
         userdataManager->EraseData();
         delay(1000);
         ESP.restart();
+        return;
     }
-}
\ No newline at end of file
+
+    if (count >= 2) {
+        return;
+    }
+}
+
+FuncButton::FuncButton()
+{    
+    pinMode(FUNC_BTN, INPUT);
+    pressedTime = 0;
+    
+    scanner.attach(1.0, Scan);
+}
diff --git a/src/main.cpp b/src/main.cpp
index 742b6f8..fa1726c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -16,6 +16,8 @@ FuncButton* funcButton;
 
 void setup()
 {
+    Serial.begin(115200);
+    
     statusLed = new StatusBlink();
     userdataManager = new UserData();
     displayPanel = new DisplayPanel();
@@ -32,7 +34,6 @@ void setup()
 void loop()
 {
     delay(1000);
-    funcButton->Scan();
     
     if (netClient->FetchNewData() == OK) {
         displayPanel->DisplayCpuPercent(netClient->GetPercent(CPU_PERCENT));