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arduino-cli/libraries/Blynk/examples/Widgets/Twitter/Twitter.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.
+
+ *************************************************************
+
+  Simple tweet example
+
+  App project setup:
+    Twitter widget (connect it to your Twitter account!)
+
+  Connect a button to pin 2 and GND...
+  Pressing this button will also tweet a message! ;)
+ *************************************************************/
+
+/* Comment this out to disable prints and save space */
+#define BLYNK_PRINT Serial
+
+
+#include <SPI.h>
+#include <Ethernet.h>
+#include <BlynkSimpleEthernet.h>
+
+// You should get Auth Token in the Blynk App.
+// Go to the Project Settings (nut icon).
+char auth[] = "YourAuthToken";
+
+BlynkTimer timer;
+
+void tweetUptime()
+{
+  long uptime = millis() / 60000L;
+  Serial.println("Tweeting every 10 minutes ;)");
+
+  // Actually send the message.
+  // Note:
+  //   We allow 1 tweet per 5 seconds for now.
+  //   Twitter doesn't allow identical subsequent messages.
+  Blynk.tweet(String("Running for ") + uptime + " minutes.");
+}
+
+void tweetOnButtonPress()
+{
+  // Invert state, since button is "Active LOW"
+  int isButtonPressed = !digitalRead(2);
+  if (isButtonPressed) {
+    Serial.println("Button is pressed.");
+
+    Blynk.tweet("Yaaay... button is pressed! :)\n #arduino #IoT #blynk @blynk_app");
+  }
+}
+
+void setup()
+{
+  // Debug console
+  Serial.begin(9600);
+
+  Blynk.begin(auth);
+
+  // Tweet immediately on startup
+  Blynk.tweet("My Arduino project is tweeting using @blynk_app and it’s awesome!\n #arduino #IoT #blynk");
+
+  // Setup a function to be called every 10 minutes
+  timer.setInterval(10L * 60000L, tweetUptime);
+
+  // Setup twitter button on pin 2
+  pinMode(2, INPUT_PULLUP);
+  // Attach pin 2 interrupt to our handler
+  attachInterrupt(digitalPinToInterrupt(2), tweetOnButtonPress, CHANGE);
+}
+
+void loop()
+{
+  Blynk.run();
+  timer.run();
+}
+