/* Comment this out to disable prints and save space */ #define BLYNK_PRINT SwSerial #include SoftwareSerial SwSerial(10, 11); // RX, TX #include #include // You should get Auth Token in the Blynk App. // Go to the Project Settings (nut icon). char auth[] = "wzbjGe-U658FP_c18CIhynGo9js15_5c"; #define DHTPIN 2 // 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 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() { float h = dht.readHumidity(); float t = dht.readTemperature(); // or dht.readTemperature(true) for Fahrenheit if (isnan(h) || isnan(t)) { SwSerial.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); Blynk.virtualWrite(V6, t); } void setup() { // Debug console SwSerial.begin(9600); // Blynk will work through Serial // Do not read or write this serial manually in your sketch Serial.begin(9600); Blynk.begin(Serial, auth); dht.begin(); // Setup a function to be called every second timer.setInterval(1000L, sendSensor); } void loop() { Blynk.run(); timer.run(); }