เซ็นเซอร์วัดอุณหภูมิและความชื้น DHT11 temperature module humidity module

เซ็นเซอร์วัดอุณหภูมิและความชื้น DHT11 temperature module humidity module Specification: Supply Voltage: +5 V / 2.5mA Temperature range :0-50 C error of 2 C Humidity :20-90% RH 5% RH error Interface: Digital pin: 1,Vcc,Power supply 3.5V to 5.5V 2,Data,Outputs both Temperature and Humidity through serial Data 3,Ground,Connected to the ground of the circuit #include //----------------dht11 show temp/humid to i2c lcd------------------ #include #include //#include //LiquidCrystal_I2C lcd(0x3F,16,2); // set the LCD address to 0x27 for a 16 chars and 2 line display #define DHTTYPE DHT11 #define DHTPIN 7 DHT dht(DHTPIN,DHTTYPE,30); void setup(){ Serial.begin(115200); dht.begin(); // lcd.begin(); // initialize the lcd // Print a message to the LCD. // lcd.backlight(); delay(2500); lcd.clear(); } void loop() { // Wait a few seconds between measurements. delay(2000); float h = dht.readHumidity(); float t = dht.readTemperature(); float f = dht.readTemperature(true); if (isnan(h) || isnan(t) || isnan(f)) { Serial.println("Failed to read from DHT sensor!"); return; } float hif = dht.computeHeatIndex(f, h); float hic = dht.computeHeatIndex(t, h, false); //-------------------------Print to screen COM.?------ Serial.print("Temperature: "); Serial.print(t); Serial.println(" *C "); Serial.print("Humidity: "); Serial.print(h); Serial.print(" % "); //--------------------------------------LCD I2c------ /* lcd.setCursor(0,0); //บรรทัดที่ 0 ตำแหน่งที่ 0 lcd.print("Temperature:"); //print show LCD i2c lcd.print(t); lcd.setCursor(0,1); //บรรทัดที่ 1 ตำแหน่งที่ 0 lcd.print("Humidity:"); //print show LCD i2c lcd.print(h); delay(250);*/ }