#define THERMISTORPIN A0
#define THERMISTORNOMINAL 1000
#define TEMPERATURENOMINAL 25
const float BETA=3950;
#include "DHT.h"
#include "SevSeg.h"
SevSeg sevseg;
#define DHTPIN 18
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);
int tonePin=4;
int trigPin= 11;
int echoPin=10;
int diff;
long duration, distance;
int pinA=3;
int pinB=17;
int pinC=15;
int pinD=0;
int pinE=1;
int pinF=2;
int pinG=16;
int pinDP=14;
int D1=9;
int D2=8;
int D3=7;
int D4=6;
double temperature=0;
int temp=0;
int placeValuesofTemp[4];
int TempRefresh=1000;
int sevsegRefresh=5;

void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
pinMode (trigPin, OUTPUT);
pinMode (echoPin, INPUT);
pinMode (tonePin, OUTPUT);
Serial.println("DHTxx test!");
dht.begin();

pinMode(pinA, OUTPUT);     
pinMode(pinB, OUTPUT);     
pinMode(pinC, OUTPUT);     
pinMode(pinD, OUTPUT);     
pinMode(pinE, OUTPUT);     
pinMode(pinF, OUTPUT);     
pinMode(pinG, OUTPUT);   
pinMode(D1, OUTPUT);  
pinMode(D2, OUTPUT);  
pinMode(D3, OUTPUT);  
pinMode(D4, OUTPUT);  
pinMode(pinDP, OUTPUT);


temperature = analogRead(DHTPIN);


//byte numDigits=4;
//byte digitPins[]={9,8,7,6};
//byte segmentPins[]={3,17,15,0,1,2,16,14};
//bool resistorsOnSegments=true;
//bool updateWithDelaysIn=true;
//byte hardwareConfig = COMMON_CATHODE; 
//sevseg.begin(hardwareConfig, numDigits, digitPins, segmentPins, resistorsOnSegments);
//sevseg.setBrightness(90);


}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(trigPin,LOW);
delay(5);
digitalWrite(trigPin, HIGH);
delay(10);
digitalWrite(trigPin, LOW);
pinMode(echoPin, INPUT);
duration=pulseIn(echoPin,HIGH);
distance=(duration/2)/29.1;
if (distance <=30){
  tone(tonePin, 5000,200);
}
Serial.print(distance);
Serial.print("distance");
delay(250);

float t=dht.readTemperature();
if(isnan(t)){
  Serial.println("Failed to read from DHT sensor!");
  return;
}
Serial.print("Temperature:");
Serial.print(t);
Serial.print("*C");

int analogValue=analogRead(A0);
float celsius=1/(log(1/(1023./analogValue-1))/BETA+1.0/298.15)-273.15;
Serial.print("TEMP2:");
Serial.print(celsius);
delay(250);

diff=abs(celsius-t);
if ((diff>=5)){
  tone(tonePin, 5000,200);
  delay(250);
}


  //read from temperature sensor
  temperature = analogRead(DHTPIN);

  
  temperature = temperature*1100/(1024*10);

  temperature = temperature*100;
  
  //put temp digits by their place value
  placeValuesofTemp[3] = ((temp)/1)%10;
  placeValuesofTemp[2] = ((temp)/10)%10;
  placeValuesofTemp[1] = ((temp)/100)%10;
  placeValuesofTemp[0] = ((temp)/1000)%10;
 
} //end millis() if statement

  //seven segment 0 - 0 digits
  int number [10][7] = {
    {1, 1, 1, 1, 1, 1, 0}, //0
    {0, 0, 0, 0, 1, 1, 0}, //1
    {1, 1, 0, 1, 1, 0, 1}, //2
    {1, 1, 1, 1, 0, 0, 1}, //3
    {0, 1, 1, 0, 0, 1, 1}, //4
    {1, 0, 1, 1, 0, 1, 1}, //5
    {1, 0, 1, 1, 1, 1, 1}, //6
    {1, 1, 1, 0, 0, 0, 0}, //7
    {1, 1, 1, 1, 1, 1, 1}, //8
    {1, 1, 1, 0, 0, 1, 1}, //9
        
    };

    //
  int commonPin [5][4]= {
    {0, 1, 1, 1},//enable digit 1
    {1, 0, 1, 1},//enable digit 2
    {1, 1, 0, 1},//enable digit 3
    {1, 1, 1, 0},//enable digit 4
    {0, 0, 0, 0},//enable all
    };