Page 210 - 최강 아두이노 퍼스트 참고서

SCL A5

예제코드)

http://www.allfirst.co.kr/pds/arduinoLib/dht11_ex_1.ino

#include <dht.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

#define DHT11_PIN 8

dht DHT;
//LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
LiquidCrystal_I2C lcd(0x27,16,2);

void setup() {
Serial.begin(9600); lcd.init();
lcd.backlight();

}

int getDHT(int& t, int &h)
{
int chk = DHT.read11(DHT11_PIN);
switch (chk)
{
case DHTLIB_OK:
Serial.print("OK,\t");
break;
case DHTLIB_ERROR_CHECKSUM:
Serial.print("Checksum error,\t");
break;
case DHTLIB_ERROR_TIMEOUT:
Serial.print("Time out error,\t");
break;
case DHTLIB_ERROR_CONNECT:
Serial.print("Connect error,\t");
break;
case DHTLIB_ERROR_ACK_L:
Serial.print("Ack Low Error,\t");
break;
case DHTLIB_ERROR_ACK_H:
Serial.print("Ack High Error,\t");
break;

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