DHT11 module Digital Temperature and Humidity sensor พร้อมสาย

Product Details:

• Temperature & Humidity Sensor Module
• Condition: New
• Can detect surrounding environment of the humidity and temperature
• DHT11 sensor adopts
• Humidity measurement range: 20% ~90%RH
• Humidity measurement error: ±5%RH
• Temperature measurement range: 0~60
• Temperature measurement error: ±2
• Operating voltage: DC 5V
• Output form: Digital
• Has fixed bolt hole and easy installation
• Color and more details are shown as pictures

ตัวอย่าง CODE เพิ่มเติมคลิ๊กที่นี่

#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) // Connect pin 1 (on the left) of the sensor to +5V // Connect pin 2 of the sensor to whatever your DHTPIN is // Connect pin 4 (on the right) of the sensor to GROUND // Connect a 10K resistor from pin 2 (data) to pin 1 (power) of the sensor DHT dht(DHTPIN, DHTTYPE); void setup() { Serial.begin(9600); Serial.println("DHT11 test!"); dht.begin(); } void loop() { // 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(); float t = dht.readTemperature(); // check if returns are valid, if they are NaN (not a number) then something went wrong! if (isnan(t) || isnan(h)) { Serial.println("Failed to read from DHT"); } else { Serial.print("Humidity: "); Serial.print(h); Serial.print(" %\t"); Serial.print("Temperature: "); Serial.print(t); Serial.println(" *C"); } }