/************************************************************* 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. ************************************************************* You can construct and display any strings on a Value Display. App project setup: Value Display widget attached to V5 *************************************************************/ /* Comment this out to disable prints and save space */ #define BLYNK_PRINT Serial /* Fill-in your Template ID (only if using Blynk.Cloud) */ //#define BLYNK_TEMPLATE_ID "YourTemplateID" #include #include #include // You should get Auth Token in the Blynk App. // Go to the Project Settings (nut icon). char auth[] = "YourAuthToken"; BlynkTimer timer; // This function sends Arduino's up time every second to Virtual Pin (5). // In the app, Widget's reading frequency should be set to PUSH. This means // that you define how often to send data to Blynk App. void sendTemperature() { // Generate random temperature value 10.0 to 30.0 (for example) float t = float(random(100, 300)) / 10; // Format: 1 decimal place, add ℃ String str = String(t, 1) + "℃"; // Send it to the server Blynk.virtualWrite(V5, str); } void setup() { // Debug console Serial.begin(9600); Blynk.begin(auth); // Setup a function to be called every second timer.setInterval(1000L, sendTemperature); } void loop() { Blynk.run(); timer.run(); }