69 lines
1.9 KiB
C++
69 lines
1.9 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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You can construct and display any strings on a Value Display.
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App dashboard setup:
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Value Display widget attached to V5
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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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BlynkTimer timer;
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// This function sends Arduino's up time every second to Virtual Pin (5)
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void sendTemperature()
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{
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// Generate random temperature value 10.0 to 30.0 (for example)
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float t = float(random(100, 300)) / 10;
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// Format: 1 decimal place, add ℃
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String str = String(t, 1) + "℃";
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// Send it to the server
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Blynk.virtualWrite(V5, str);
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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 a function to be called every second
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timer.setInterval(1000L, sendTemperature);
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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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