Код: Выделить всё

#include <dht.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#define Trig 4
#define Echo 2
#define Trig2 8
#define Echo2 12
#define ONE_WIRE_BUS 7
#define Steps

dht DHT;

#define DHT21_PIN 0
static const float defDist  = .6985; // m
static const float defDist2 = .713; // m

// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
OneWire oneWire(ONE_WIRE_BUS);

// Pass our oneWire reference to Dallas Temperature. 
DallasTemperature sensors(&oneWire);
void setup() 
{ 
pinMode(Trig, OUTPUT);
pinMode(Echo, INPUT);
pinMode(Trig2, OUTPUT);
pinMode(Echo2, INPUT);
Serial.begin(57600); 
  // Start up the library
  sensors.begin();
Serial.println("X Distance  Tds18820  Tcalc Tdht  Hum V");
} 
unsigned long impulseTime=0; 

void loop() 
{
      // READ DATA
    //Serial.print("DHT21, \t");
    int chk = DHT.read21(DHT21_PIN);
    float DHTtemp = 10; 
    float DHThum = 50;
    switch (chk)
    {
    case DHTLIB_OK:
//        Serial.print("OK,\t");
      DHTtemp =DHT.temperature; 
      DHThum = DHT.humidity;
      break;
    default:
        Serial.print("DHT Error,\t");
        break;
    }

    // DISPLAY DATA
//    Serial.print(DHThum, 1);
//    Serial.print(",\t");
    //Serial.println(DHTtemp, 1);

    sensors.requestTemperatures(); // Send the command to get temperatures DS18820

  float dist = 0;
  float dist2 = 0;
  float temp = sensors.getTempCByIndex(0); //DHTtemp;

unsigned long impulseTime=0; 
unsigned long impulseTime2=0; 
int N=250;
for (int i = 0; i <N; i++) { digitalWrite(Trig, HIGH); delayMicroseconds(10); digitalWrite(Trig, LOW); impulseTime +=pulseIn(Echo, HIGH); delay(50); digitalWrite(Trig2, HIGH); delayMicroseconds(10); digitalWrite(Trig2, LOW); impulseTime2 +=pulseIn(Echo2, HIGH); delay(50); } //float P = 101325; float P = 761 * 133.3; float M = (28.95-10.934*DHT.humidity/100*(133.3*4.579*exp(17.14*temp/(235.3+temp)))/P)/1000; float R= 8.31447; float X = 1.4 * R/M ; //X = 287; float c = sqrt( X *(temp+273.15)); dist = impulseTime * c / 1e6 /N; dist2 = impulseTime2 * c / 1e6 /N; float Speed_of_sound = defDist*N/impulseTime * 1e6; float Speed_of_sound2 = defDist2*N/impulseTime2 * 1e6; float Tcalc = sq(Speed_of_sound)/X - 273.15; float v = c- Speed_of_sound; float v2 = c- Speed_of_sound2; float v3 = sqrt(sq(v) + sq(v2)); int wd = int(atan(-v/v2)*180/3.1416); if (v>0) {wd+=90;} else {wd+=270;}

//Serial.println("X Distance  Tds18820  Tcalc Tdht  Hum V");
//Serial.println(String(impulseTime) + char(9) + String(impulseTime2));
Serial.println(String(impulseTime) + char(9) + String(impulseTime2) + char(9) + String(dist, 5) + char(9) + String(dist2, 5) + char(9) + String(temp) + char(9) + String(Tcalc) + char(9) + String(DHTtemp)+ char(9) + String(DHThum) + char(9) + String(v) + char(9) + String(v2) + char(9) + String(v3) + char(9) + String(wd));

Код: Выделить всё

#include <dht.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#define Trig 4         // HC-SR04 №1
#define Echo 2
#define Trig2 8        // HC-SR04 №2
#define Echo2 12
#define ONE_WIRE_BUS 7 // DS18B20
#define Steps

dht DHT;

#define DHT21_PIN 0    // DHT21
static const float defDist  = .2121; // m
static const float defDist2 = .2121; // m
float Tcalc = 0;

// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
OneWire oneWire(ONE_WIRE_BUS);

// Pass our oneWire reference to Dallas Temperature. 
DallasTemperature sensors(&oneWire);
void setup() 
{ 
pinMode(Trig, OUTPUT);
pinMode(Echo, INPUT);
pinMode(Trig2, OUTPUT);
pinMode(Echo2, INPUT);
Serial.begin(57600); 
  // Start up the library
  sensors.begin();
Serial.println("X Distance  Tds18820  Tcalc Tdht  Hum V");
} 
unsigned long impulseTime=0; 

void loop() 
{
  float temp = 0;
  float DHTtemp = 0; 
  float DHThum = 50;
  // READ DHT DATA
  int chk = DHT.read21(DHT21_PIN);
  if (chk == DHTLIB_OK) 
    {
      DHTtemp =DHT.temperature; 
      DHThum = DHT.humidity;
    }
  if (sensors.getDeviceCount() > 0)
    {
      sensors.requestTemperatures(); // Send the command to get temperatures DS18820
      temp = sensors.getTempCByIndex(0); //DHTtemp;
    }
  float dist = 0;
  float dist2 = 0;

  unsigned long impulseTime=0; 
  unsigned long impulseTime2=0; 
  int N=50;
  for (int i = 0; i <N; i++)
  {

  digitalWrite(Trig, HIGH); 
  delayMicroseconds(10);
  digitalWrite(Trig, LOW);
  impulseTime +=pulseIn(Echo, HIGH);
  delay(50);
  digitalWrite(Trig2, HIGH); 
  delayMicroseconds(10);
  digitalWrite(Trig2, LOW);
  impulseTime2 +=pulseIn(Echo2, HIGH);
  delay(50);
  
  }

  //float P = 101325;
  float P = 761 * 133.3;
  float M = (28.95-10.934*DHThum/100*(133.3*4.579*exp(17.14*Tcalc/(235.3+Tcalc)))/P)/1000;  //M = 0.02895;
  float R= 8.31447;
  float X = 1.4 * R/M ;     
  Tcalc = sq((defDist+defDist2)*N/(impulseTime+impulseTime2) * 1e6)/X - 273.15;
  float c = sqrt( X *(Tcalc+273.15));
  dist = impulseTime * c / 1e6 /N;
  dist2 = impulseTime2 * c / 1e6 /N;

  float Speed_of_sound = defDist*N/impulseTime * 1e6;
  float Speed_of_sound2 = defDist2*N/impulseTime2 * 1e6;

  float v = (Speed_of_sound-Speed_of_sound2)/2;
  //float v2 = c- Speed_of_sound2;
  //float v3 = sqrt(sq(v) + sq(v2));
  //int wd = int(atan(-v/v2)*180/3.1416);
  //if (v>0) {wd+=90;} else {wd+=270;}

  Serial.println(String(impulseTime) + char(9) + String(impulseTime2) + char(9) + String(dist, 5) + char(9) + String(dist2, 5) + char(9) 
  + String(temp) + char(9) + String(Tcalc) + char(9) + String(DHTtemp)+ char(9) + String(DHThum)+ char(9) + String(M,5) + char(9) + String(v));