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arduino-cli/libraries/Blynk/examples/More/HandleDisconnect/HandleDisconnect.ino

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+/*************************************************************
+  Download latest Blynk library here:
+    https://github.com/blynkkk/blynk-library/releases/latest
+
+  Blynk is a platform with iOS and Android apps to control
+  Arduino, Raspberry Pi and the likes over the Internet.
+  You can easily build graphic interfaces for all your
+  projects by simply dragging and dropping widgets.
+
+    Downloads, docs, tutorials: http://www.blynk.cc
+    Sketch generator:           http://examples.blynk.cc
+    Blynk community:            http://community.blynk.cc
+    Follow us:                  http://www.fb.com/blynkapp
+                                http://twitter.com/blynk_app
+
+  Blynk library is licensed under MIT license
+  This example code is in public domain.
+
+ *************************************************************
+
+  This example shows how to keep WiFi connection on ESP8266.
+
+ *************************************************************/
+
+/* Comment this out to disable prints and save space */
+#define BLYNK_PRINT Serial
+
+
+#include <ESP8266WiFi.h>
+#include <BlynkSimpleEsp8266.h>
+
+// You should get Auth Token in the Blynk App.
+// Go to the Project Settings (nut icon).
+char auth[] = "YourAuthToken";
+
+// Your WiFi credentials.
+// Set password to "" for open networks.
+char ssid[] = "YourNetworkName";
+char pass[] = "YourPassword";
+
+
+int lastConnectionAttempt = millis();
+int connectionDelay = 5000; // try to reconnect every 5 seconds
+
+void setup()
+{
+  // Debug console
+  Serial.begin(9600);
+
+  Blynk.begin(auth, ssid, pass);
+}
+
+void loop()
+{
+  // check WiFi connection:
+  if (WiFi.status() != WL_CONNECTED)
+  {
+    // (optional) "offline" part of code
+
+    // check delay:
+    if (millis() - lastConnectionAttempt >= connectionDelay)
+    {
+      lastConnectionAttempt = millis();
+
+      // attempt to connect to Wifi network:
+      if (pass && strlen(pass))
+      {
+        WiFi.begin((char*)ssid, (char*)pass);
+      }
+      else
+      {
+        WiFi.begin((char*)ssid);
+      }
+    }
+  }
+  else
+  {
+    Blynk.run();
+  }
+}