습도조절.cpp

byte pLed = 2;
byte segPins[] = {5, 7,  8, 10, A0, 13, 12, 11};
byte digitPins[] = {6, 9};
byte sensorPin = A1;
byte relayPin = 4;


byte cnt = 0;
bool isOn = false;

long last = 0;
long cur = 0;
long elapsed = 0;

byte humidity = 0;

byte digits[] = {
  0b01110111,
  0b01000010,
  0b10110110,
  0b11100110,
  0b11000011,
  0b11100101,
  0b11110101,
  0b01000110,
  0b11110111,
  0b11100111
};

void setup() {
  Serial.begin(9600);
  // put your setup code here, to run once:
  pinMode(pLed, OUTPUT);
  pinMode(relayPin, OUTPUT);
  for(byte i=0;i<8;i++){
    pinMode(segPins[i], OUTPUT);
    digitalWrite(segPins[i], HIGH);
  }
  pinMode(digitPins[0], OUTPUT);
  pinMode(digitPins[1], OUTPUT);

  last = millis();
  cur = last;
}

void writeDigit(int digit, int no){
  digitalWrite(digitPins[digit], HIGH);
  for(byte i=0;i<8;i++){
    digitalWrite(segPins[i], ((digits[no]>>i)&0x01)==1?LOW:HIGH);
  }
  delay(10);
  digitalWrite(digitPins[digit], LOW);
}


void loop() {
  last = cur;
  cur = millis();
  elapsed += cur-last;
  
  // put your main code here, to run repeatedly:
  if( elapsed > 1000 ){
      cnt++;
      elapsed -= 1000;
      humidity = analogRead(sensorPin)/10;
      Serial.println(humidity);
      if( isOn && humidity > 62 ){
        isOn = false;
        digitalWrite(relayPin, HIGH);
        digitalWrite(pLed, HIGH);
      }
      if( !isOn && humidity < 59 ){
        isOn = true;
        digitalWrite(relayPin, LOW);
        digitalWrite(pLed, LOW);
      }
  }
  writeDigit(0, humidity/10);
  writeDigit(1, humidity%10);
}