92 lines
2.5 KiB
C++
92 lines
2.5 KiB
C++
/*************************************************************
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Download latest Blynk library here:
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https://github.com/blynkkk/blynk-library/releases/latest
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Blynk is a platform with iOS and Android apps to control
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Arduino, Raspberry Pi and the likes over the Internet.
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You can easily build graphic interfaces for all your
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projects by simply dragging and dropping widgets.
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Downloads, docs, tutorials: http://www.blynk.cc
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Sketch generator: http://examples.blynk.cc
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Blynk community: http://community.blynk.cc
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Follow us: http://www.fb.com/blynkapp
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http://twitter.com/blynk_app
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Blynk library is licensed under MIT license
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This example code is in public domain.
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*************************************************************
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Simple tweet example
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App project setup:
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Twitter widget (connect it to your Twitter account!)
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Connect a button to pin 2 and GND...
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Pressing this button will also tweet a message! ;)
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*************************************************************/
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/* Comment this out to disable prints and save space */
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#define BLYNK_PRINT Serial
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#include <SPI.h>
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#include <Ethernet.h>
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#include <BlynkSimpleEthernet.h>
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// You should get Auth Token in the Blynk App.
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// Go to the Project Settings (nut icon).
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char auth[] = "YourAuthToken";
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BlynkTimer timer;
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void tweetUptime()
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{
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long uptime = millis() / 60000L;
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Serial.println("Tweeting every 10 minutes ;)");
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// Actually send the message.
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// Note:
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// We allow 1 tweet per 5 seconds for now.
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// Twitter doesn't allow identical subsequent messages.
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Blynk.tweet(String("Running for ") + uptime + " minutes.");
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}
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void tweetOnButtonPress()
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{
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// Invert state, since button is "Active LOW"
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int isButtonPressed = !digitalRead(2);
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if (isButtonPressed) {
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Serial.println("Button is pressed.");
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Blynk.tweet("Yaaay... button is pressed! :)\n #arduino #IoT #blynk @blynk_app");
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}
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}
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void setup()
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{
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// Debug console
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Serial.begin(9600);
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Blynk.begin(auth);
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// Tweet immediately on startup
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Blynk.tweet("My Arduino project is tweeting using @blynk_app and it’s awesome!\n #arduino #IoT #blynk");
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// Setup a function to be called every 10 minutes
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timer.setInterval(10L * 60000L, tweetUptime);
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// Setup twitter button on pin 2
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pinMode(2, INPUT_PULLUP);
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// Attach pin 2 interrupt to our handler
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attachInterrupt(digitalPinToInterrupt(2), tweetOnButtonPress, CHANGE);
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}
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void loop()
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{
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Blynk.run();
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timer.run();
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}
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