81 lines
2.2 KiB
C++
81 lines
2.2 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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You can synchronize the state of widgets with hardware states,
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even if hardware resets or looses connection temporarily
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Project setup in the Blynk app:
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Slider widget (0...1024) on V0
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Value display (0...1024) on V2
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Button widget on digital pin (connected to an LED)
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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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// This function will run every time Blynk connection is established
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BLYNK_CONNECTED() {
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// Request Blynk server to re-send latest values for all pins
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Blynk.syncAll();
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// You can also update individual virtual pins like this:
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//Blynk.syncVirtual(V0, V2);
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// Let's write your hardware uptime to Virtual Pin 2
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int value = millis() / 1000;
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Blynk.virtualWrite(V2, value);
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}
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BLYNK_WRITE(V0)
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{
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// Use of syncAll() will cause this function to be called
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// Parameter holds last slider value
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int sliderValue0 = param.asInt();
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}
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BLYNK_WRITE(V2)
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{
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// You'll get uptime value here as result of syncAll()
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int uptime = param.asInt();
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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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}
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void loop()
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{
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Blynk.run();
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}
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