84 lines
2.0 KiB
C++
84 lines
2.0 KiB
C++
/*************************************************************
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Blynk is a platform with iOS and Android apps to control
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ESP32, Arduino, Raspberry Pi and the likes over the Internet.
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You can easily build mobile and web interfaces for any
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projects by simply dragging and dropping widgets.
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Downloads, docs, tutorials: https://www.blynk.io
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Sketch generator: https://examples.blynk.cc
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Blynk community: https://community.blynk.cc
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Follow us: https://www.fb.com/blynkapp
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https://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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Blynk using a LED widget on your phone!
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Datastream setup:
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Virtual Pin V3, type: Integer, min: 0, max: 255
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App/Web dashboard setup:
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LED widget on V3
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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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/* Fill in information from Blynk Device Info here */
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//#define BLYNK_TEMPLATE_ID "TMPxxxxxx"
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//#define BLYNK_TEMPLATE_NAME "Device"
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//#define BLYNK_AUTH_TOKEN "YourAuthToken"
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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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// Select your pin with physical button
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const int btnPin = 4;
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WidgetLED led1(V3);
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BlynkTimer timer;
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// V3 LED Widget represents the physical button state
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boolean btnState = false;
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void buttonLedWidget()
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{
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// Read button
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boolean isPressed = (digitalRead(btnPin) == LOW);
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// If state has changed...
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if (isPressed != btnState) {
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if (isPressed) {
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led1.on();
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} else {
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led1.off();
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}
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btnState = isPressed;
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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(BLYNK_AUTH_TOKEN);
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// Setup physical button pin (active low)
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pinMode(btnPin, INPUT_PULLUP);
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timer.setInterval(500L, buttonLedWidget);
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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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