dht 7segment temp

#include "DHT.h"

#define DHTPIN 13     // Digital pin connected to the DHT sensor

// Uncomment whatever type you're using!

#define DHTTYPE DHT11   // DHT 11

DHT dht(DHTPIN, DHTTYPE);

//a,b,c,d,e,f,g 상태값

byte segValue[10][7] = { //애노드형

  {0, 0, 0, 0, 0, 0, 1}, //0

  {1, 0, 0, 1, 1, 1, 1}, //1

  {0, 0, 1, 0, 0, 1, 0}, //2

  {0, 0, 0, 0, 1, 1, 0}, //3

  {1, 0, 0, 1, 1, 0, 0}, //4

  {0, 1, 0, 0, 1, 0, 0}, //5

  {0, 1, 0, 0, 0, 0, 0}, //6

  {0, 0, 0, 1, 1, 1, 1}, //7

  {0, 0, 0, 0, 0, 0, 0}, //8

  {0, 0, 0, 0, 1, 0, 0} //9

};

byte segPin[8] = {4, 5, 6, 7, 8, 9, 10, 11}; //사용핀{a,b,c,d,e,f,g,dp} 순서대로임

byte digitPin[2] = {2, 3}; //segment 위치 핀

unsigned long readTime = 0; //현재시간

int d1 = 0; //1의 자리

int d2 = 0; //10의 자리

int change = 0;  //온도와 습도 교차 출력

unsigned long previousMillis = 0;        // will store last time LED was updated

// constants won't change:

const long interval = 2000;

void setup() {

  //Serial.begin(9600);

  //Serial.println(F("DHTxx test!"));

  dht.begin();

  for (int i = 0; i < 10; i++) {

    pinMode(segPin[i], OUTPUT);

  }

  pinMode(digitPin[0], OUTPUT);

  pinMode(digitPin[1], OUTPUT);

  digitalWrite(digitPin[0], LOW);

  digitalWrite(digitPin[1], LOW);

  pinMode(12, OUTPUT);

}

void loop() {

  unsigned long currentMillis = millis();

  if (currentMillis - previousMillis >= interval) {

    // save the last time you blinked the LED

    previousMillis = currentMillis;

    if (change == 0)

    {

      change = 1;

    }

    else if (change == 1)

    {

      change = 0;

    }

  }

  // 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();

  int h = dht.readHumidity();

  // Read temperature as Celsius (the default)

  //float t = dht.readTemperature();

  int t = dht.readTemperature();

  // Read temperature as Fahrenheit (isFahrenheit = true)

  float f = dht.readTemperature(true);

  if (change == 0)

  {

    d1 = h % 10; //1의 자리

    d2 = (h / 10) % 10; //10의 자리

    digitalWrite(12, HIGH);

  }

  if (change == 1)

  {

    d1 = t % 10; //1의 자리

    d2 = (t / 10) % 10; //10의 자리

    digitalWrite(12, LOW);

  }

  segOutput(1, d1, 1); //1의 자리

  segOutput(0, d2, 1); //10의 자리

}

//LED 초기화

void segClear() {

  for (int i = 0; i < 8; i++) {

    digitalWrite(segPin[i], HIGH);

  }

}

//LED 출력

void segOutput(int d, int Number, int dp) {

  segClear();

  digitalWrite(digitPin[d], HIGH);

  for (int i = 0; i < 7; i++) {

    digitalWrite(segPin[i], segValue[Number][i]);

  }

  digitalWrite(segPin[7], dp);

  delayMicroseconds(1000);

  digitalWrite(digitPin[d], LOW);

}