diff --git a/src/main.cpp b/src/main.cpp
index 610fa92..13bad7a 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2,32 +2,32 @@
 Source:
 https://randomnerdtutorials.com/esp32-over-the-air-ota-programming/
 
-To update the firmware with Platform IO, do a build and then upload in the web interface the file
-.pio/build/esp32doit-devkit-v1/firmware.bin
+To update the firmware with Platform IO, do a build and then upload in the web
+interface the file .pio/build/esp32doit-devkit-v1/firmware.bin
 
  */
 
 #include <Arduino.h>
 /*
- * Rui Santos 
+ * Rui Santos
  * Complete Project Details http://randomnerdtutorials.com
  */
 
-#include <WiFi.h>
-#include <WiFiClient.h>
-#include <WebServer.h>
 #include <ESPmDNS.h>
 #include <Update.h>
+#include <WebServer.h>
+#include <WiFi.h>
+#include <WiFiClient.h>
 
 const char* host = "esp32ota";
 const char* ssid = "JoNelsDarlings";
 const char* password = "Paris2016";
 
-//variabls to blink without delay:
+// variabls to blink without delay:
 const int led = 2;
-unsigned long previousMillis = 0;        // will store last time LED was updated
-const long interval = 1000;           // interval at which to blink (milliseconds)
-int ledState = LOW;             // ledState used to set the LED
+unsigned long previousMillis = 0;  // will store last time LED was updated
+const long interval = 1000;        // interval at which to blink (milliseconds)
+int ledState = LOW;                // ledState used to set the LED
 
 WebServer server(80);
 
@@ -35,34 +35,34 @@ WebServer server(80);
  * Login page
  */
 
-const char* loginIndex = 
- "<form name='loginForm'>"
+const char* loginIndex =
+    "<form name='loginForm'>"
     "<table width='20%' bgcolor='A09F9F' align='center'>"
-        "<tr>"
-            "<td colspan=2>"
-                "<center><font size=4><b>ESP32 Login Page</b></font></center>"
-                "<br>"
-            "</td>"
-            "<br>"
-            "<br>"
-        "</tr>"
-        "<td>Username:</td>"
-        "<td><input type='text' size=25 name='userid'><br></td>"
-        "</tr>"
-        "<br>"
-        "<br>"
-        "<tr>"
-            "<td>Password:</td>"
-            "<td><input type='Password' size=25 name='pwd'><br></td>"
-            "<br>"
-            "<br>"
-        "</tr>"
-        "<tr>"
-            "<td><input type='submit' onclick='check(this.form)' value='Login'></td>"
-        "</tr>"
+    "<tr>"
+    "<td colspan=2>"
+    "<center><font size=4><b>ESP32 Login Page</b></font></center>"
+    "<br>"
+    "</td>"
+    "<br>"
+    "<br>"
+    "</tr>"
+    "<td>Username:</td>"
+    "<td><input type='text' size=25 name='userid'><br></td>"
+    "</tr>"
+    "<br>"
+    "<br>"
+    "<tr>"
+    "<td>Password:</td>"
+    "<td><input type='Password' size=25 name='pwd'><br></td>"
+    "<br>"
+    "<br>"
+    "</tr>"
+    "<tr>"
+    "<td><input type='submit' onclick='check(this.form)' value='Login'></td>"
+    "</tr>"
     "</table>"
-"</form>"
-"<script>"
+    "</form>"
+    "<script>"
     "function check(form)"
     "{"
     "if(form.userid.value=='admin' && form.pwd.value=='admin')"
@@ -74,73 +74,76 @@ const char* loginIndex =
     " alert('Error Password or Username')/*displays error message*/"
     "}"
     "}"
-"</script>";
- 
+    "</script>";
+
 /*
  * Server Index Page
  */
- 
-const char* serverIndex = 
-"<script src='https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js'></script>"
-"<form method='POST' action='#' enctype='multipart/form-data' id='upload_form'>"
-   "<input type='file' name='update'>"
-        "<input type='submit' value='Update'>"
+
+const char* serverIndex =
+    "<script "
+    "src='https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js'></"
+    "script>"
+    "<form method='POST' action='#' enctype='multipart/form-data' "
+    "id='upload_form'>"
+    "<input type='file' name='update'>"
+    "<input type='submit' value='Update'>"
     "</form>"
- "<div id='prg'>progress: 0%</div>"
- "<script>"
-  "$('form').submit(function(e){"
-  "e.preventDefault();"
-  "var form = $('#upload_form')[0];"
-  "var data = new FormData(form);"
-  " $.ajax({"
-  "url: '/update',"
-  "type: 'POST',"
-  "data: data,"
-  "contentType: false,"
-  "processData:false,"
-  "xhr: function() {"
-  "var xhr = new window.XMLHttpRequest();"
-  "xhr.upload.addEventListener('progress', function(evt) {"
-  "if (evt.lengthComputable) {"
-  "var per = evt.loaded / evt.total;"
-  "$('#prg').html('progress: ' + Math.round(per*100) + '%');"
-  "}"
-  "}, false);"
-  "return xhr;"
-  "},"
-  "success:function(d, s) {"
-  "console.log('success!')" 
- "},"
- "error: function (a, b, c) {"
- "}"
- "});"
- "});"
- "</script>";
+    "<div id='prg'>progress: 0%</div>"
+    "<script>"
+    "$('form').submit(function(e){"
+    "e.preventDefault();"
+    "var form = $('#upload_form')[0];"
+    "var data = new FormData(form);"
+    " $.ajax({"
+    "url: '/update',"
+    "type: 'POST',"
+    "data: data,"
+    "contentType: false,"
+    "processData:false,"
+    "xhr: function() {"
+    "var xhr = new window.XMLHttpRequest();"
+    "xhr.upload.addEventListener('progress', function(evt) {"
+    "if (evt.lengthComputable) {"
+    "var per = evt.loaded / evt.total;"
+    "$('#prg').html('progress: ' + Math.round(per*100) + '%');"
+    "}"
+    "}, false);"
+    "return xhr;"
+    "},"
+    "success:function(d, s) {"
+    "console.log('success!')"
+    "},"
+    "error: function (a, b, c) {"
+    "}"
+    "});"
+    "});"
+    "</script>";
 
 /*
  * setup function
  */
 void setup(void) {
   pinMode(led, OUTPUT);
-  
+
   Serial.begin(9600);
 
   // Connect to WiFi network
   WiFi.begin(ssid, password);
   Serial.println("");
 
-   // Wait for connection or reboot if it doesn't connect for too long
+  // Wait for connection or reboot if it doesn't connect for too long
   uint32_t wifiConnAttements = 0;
   while (WiFi.status() != WL_CONNECTED) {
     delay(500);
     Serial.print(".");
     if (wifiConnAttements++ > 120) {
-      Serial.println("<Wifi not connecting after 120 attmepts (1 min.)  - rebooting>");
+      Serial.println(
+          "<Wifi not connecting after 120 attmepts (1 min.)  - rebooting>");
       ESP.restart();
     }
   }
 
-
   Serial.println("");
   Serial.print("Connected to ");
   Serial.println(ssid);
@@ -148,7 +151,7 @@ void setup(void) {
   Serial.println(WiFi.localIP());
 
   /*use mdns for host name resolution*/
-  if (!MDNS.begin(host)) { //http://esp32ota.local
+  if (!MDNS.begin(host)) {  // http://esp32ota.local
     Serial.println("Error setting up MDNS responder!");
     while (1) {
       delay(1000);
@@ -165,30 +168,37 @@ void setup(void) {
     server.send(200, "text/html", serverIndex);
   });
   /*handling uploading firmware file */
-  server.on("/update", HTTP_POST, []() {
-    server.sendHeader("Connection", "close");
-    server.send(200, "text/plain", (Update.hasError()) ? "FAIL" : "OK");
-    ESP.restart();
-  }, []() {
-    HTTPUpload& upload = server.upload();
-    if (upload.status == UPLOAD_FILE_START) {
-      Serial.printf("Update: %s\n", upload.filename.c_str());
-      if (!Update.begin(UPDATE_SIZE_UNKNOWN)) { //start with max available size
-        Update.printError(Serial);
-      }
-    } else if (upload.status == UPLOAD_FILE_WRITE) {
-      /* flashing firmware to ESP*/
-      if (Update.write(upload.buf, upload.currentSize) != upload.currentSize) {
-        Update.printError(Serial);
-      }
-    } else if (upload.status == UPLOAD_FILE_END) {
-      if (Update.end(true)) { //true to set the size to the current progress
-        Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
-      } else {
-        Update.printError(Serial);
-      }
-    }
-  });
+  server.on(
+      "/update", HTTP_POST,
+      []() {
+        server.sendHeader("Connection", "close");
+        server.send(200, "text/plain", (Update.hasError()) ? "FAIL" : "OK");
+        ESP.restart();
+      },
+      []() {
+        HTTPUpload& upload = server.upload();
+        if (upload.status == UPLOAD_FILE_START) {
+          Serial.printf("Update: %s\n", upload.filename.c_str());
+          if (!Update.begin(
+                  UPDATE_SIZE_UNKNOWN)) {  // start with max available size
+            Update.printError(Serial);
+          }
+        } else if (upload.status == UPLOAD_FILE_WRITE) {
+          /* flashing firmware to ESP*/
+          if (Update.write(upload.buf, upload.currentSize) !=
+              upload.currentSize) {
+            Update.printError(Serial);
+          }
+        } else if (upload.status == UPLOAD_FILE_END) {
+          if (Update.end(
+                  true)) {  // true to set the size to the current progress
+            Serial.printf("Update Success: %u\nRebooting...\n",
+                          upload.totalSize);
+          } else {
+            Update.printError(Serial);
+          }
+        }
+      });
   server.begin();
 }
 
@@ -196,7 +206,7 @@ void loop(void) {
   server.handleClient();
   delay(1);
 
-  //loop to blink without delay
+  // loop to blink without delay
   unsigned long currentMillis = millis();
 
   if (currentMillis - previousMillis >= interval) {