05.溫濕度計(DHT)
#include <SoftwareSerial.h>
#include <DHT.h> //載入DHT.h函式庫
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#define DHTPIN 8 //將DHT11連接到8腳位
#define DHTTYPE DHT11 //設定感測器型號為DHT11
LiquidCrystal_I2C lcd(0x3F,16,2); // 若LCD 無法啟用,請將0X3F 改為0X27
DHT dht(DHTPIN, DHTTYPE);
void setup() {
Serial.begin(9600);
lcd.init();
lcd.backlight();
lcd.clear();
}
void loop() {
float h = dht.readHumidity(); //讀取感測器濕度
float t = dht.readTemperature(); //讀取感測器溫度
Serial.print("RH=");
Serial.print(h);
Serial.print("% ; T=");
Serial.print(t);
Serial.print((char) 0xDF);
Serial.println("C");
lcd.clear();
lcd.setCursor(0,0);
lcd.print("RH= ");
lcd.print(h);
lcd.print(" %");
lcd.setCursor(0,1);
lcd.print("T= ");
lcd.print(t);
lcd.print(" ");
lcd.print((char) 0xDF);
lcd.print("C");
delay(500);
}