Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- // Example testing sketch for various DHT humidity/temperature sensors
- // Written by ladyada, public domain
- #include "DHT.h"
- #define DHTPIN 2 // what pin we're connected to
- // Uncomment whatever type you're using!
- #define DHTTYPE DHT11 // DHT 11
- //#define DHTTYPE DHT22 // DHT 22 (AM2302)
- //#define DHTTYPE DHT21 // DHT 21 (AM2301)
- // Initialize DHT sensor for normal 16mhz Arduino
- DHT dht(DHTPIN, DHTTYPE);
- void setup() {
- Serial.begin(9600);
- Serial.println("DHTxx test!");
- dht.begin();
- }
- void loop() {
- // Wait a few seconds between measurements.
- delay(2000);
- // Reading temperature or humidity takes about 250 milliseconds!
- // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
- float h = dht.readHumidity();
- // Read temperature as Celsius
- float t = dht.readTemperature();
- // Read temperature as Fahrenheit
- float f = dht.readTemperature(true);
- // Check if any reads failed and exit early (to try again).
- if (isnan(h) || isnan(t) || isnan(f)) {
- Serial.println("Failed to read from DHT sensor!");
- return;
- }
- // Compute heat index
- // Must send in temp in Fahrenheit!
- float hi = dht.computeHeatIndex(f, h);
- Serial.print("Humidity: ");
- Serial.print(h);
- Serial.print(" %\t");
- Serial.print("Temperature: ");
- Serial.print(t);
- Serial.print(" *C ");
- Serial.print(f);
- Serial.print(" *F\t");
- Serial.print("Heat index: ");
- Serial.print(hi);
- Serial.println(" *F");
- }
Add Comment
Please, Sign In to add comment