NodeMCU_DHT11_LCD

NodeMCU_DHT11_LCD

//NodeMCU接線
//I2C 1602 LCD顯示器 VCC接到5V；SDA接到D2；SCL接到D1
//DHT11 VCC接到5V；Data接到D4;VCC和Data中間要接一個4.7K的電阻
//
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include "DHT.h"

LiquidCrystal_I2C lcd(0x27,16,2);

DHT dht2(2,DHT11); 

void setup()
{
  Serial.begin(9600);
  lcd.begin();
  Serial.println("start.....");
}


void loop()
{

    lcd.setCursor(0, 0);
    lcd.print("Temperature:");
    lcd.setCursor(12, 0);
    lcd.print((dht2.readTemperature( )));
    lcd.setCursor(0, 1);
    lcd.print("Humidity:");
    lcd.setCursor(9, 1);
    lcd.print((dht2.readHumidity( )));
    Serial.println("Temperature");
    Serial.println((dht2.readTemperature( )));
    Serial.println("Humidity");
    Serial.println((dht2.readHumidity( )));
    delay(1000);

}