/************************************************************* 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. ************************************************************* This example shows how value can be pushed from Arduino to the Blynk App. WARNING : For this example you'll need Adafruit DHT sensor libraries: https://github.com/adafruit/Adafruit_Sensor https://github.com/adafruit/DHT-sensor-library App project setup: Value Display widget attached to V5 Value Display widget attached to V6 *************************************************************/ /* Comment this out to disable prints and save space */ #define BLYNK_PRINT Serial #include #include #include #include #include // You should get Auth Token in the Blynk App. // Go to the Project Settings (nut icon). char auth[] = "auth"; // Your WiFi credentials. // Set password to "" for open networks. char ssid[] = "ssid"; char pass[] = "pass"; #define DHTPIN 13 // What digital pin we're connected to // Uncomment whatever type you're using! #define DHTTYPE DHT11 // DHT 11 //#define DHTTYPE DHT22 // DHT 22, AM2302, AM2321 //#define DHTTYPE DHT21 // DHT 21, AM2301 DHT_Unified dht(DHTPIN, DHTTYPE); 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 sendSensor() { // changed this based on adafruit dht_unified example sensors_event_t event; dht.temperature().getEvent(&event); float t = event.temperature; dht.humidity().getEvent(&event); float h = event.relative_humidity; if (isnan(h) || isnan(t)) { Serial.println("Failed to read from DHT sensor!"); return; } // You can send any value at any time. // Please don't send more that 10 values per second. Blynk.virtualWrite(V5, h); Serial.println(h); Blynk.virtualWrite(V6, t); Serial.println(t); } void setup() { // Debug console Serial.begin(9600); //Blynk.begin(auth, ssid, pass); // You can also specify server: //Blynk.begin(auth, ssid, pass, "blynk-cloud.com", 80); Blynk.begin(auth, ssid, pass, IPAddress(139,59,206,133)); dht.begin(); sensor_t sensor; dht.temperature().getSensor(&sensor); dht.humidity().getSensor(&sensor); // Setup a function to be called every second timer.setInterval(1000L, sendSensor); } void loop() { Blynk.run(); timer.run(); }