nivel_arduino.ino

//Authors:Nayana Machado and Marina Ferrarez
//Email: {nayanamachado.02@gmail.com;maferrarezr@gmail.com}
//Date: 11/06/2020
//Revision: LESS DATA + CALIBRAÇÃO ULTRASONICO _ delay 60000 1 min#
//Project: {Data logger com sensor de temperatura (DHT22) e nível de água (HC-SR04)}

#include <NewPing.h>  // NewPing - Version: Latest 
//#include <RTClib.h> // RTClib - Version: Latest 
#include <RTClib.h>
#include <DHT.h> // DHT sensor library - Version: Latest 
#include <DHT_U.h> // DHT sensor library - Version: Latest 
//#include <SDConfig.h> // SDConfig - Version: Latest 
#include <SD.h>
#include <Adafruit_Sensor.h>


//Pino CS do cartao SD
int Pino_CS = 10;

//Definicoes do sensor de temperatura DHT11
//#define DHTPIN A0 //Pino de conexao
//#define DHTTYPE DHT11 //Tipo de sensor

//Definicoes do sensor de temperatura DHT22 + HC-SR04
#define DHTPIN 6          // DHT-22 Output Pin connection
#define DHTTYPE DHT22     // DHT Type is DHT 22 (AM2302)
#define TRIGGER_PIN 4     //HC-SR04
#define ECHO_PIN  5       //HC-SR04
#define MAX_DISTANCE 400  //HC-SR04


NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); //inicialize the sensor - HC-SR04


//Le as informacoes da temperatura
// float t = dht.readTemperature();

float hum;    // Stores humidity value in percent
float temp;   // Stores temperature value in Celcius
float duration; // Stores HC-SR04 pulse duration value
float dist; // Stores calculated distance in cm
float soundsp;  // Stores calculated speed of sound in M/S
float soundcm;  // Stores calculated speed of sound in cm/ms
float nivel_agua;  // stores calculated water level in cm
float nivel_agua_m;  // stores calculated water level in cm
int iterations = 5;


DHT dht(DHTPIN, DHTTYPE); //Cria objeto DHT
RTC_DS1307 rtc;
File file;

void setup()
{
  Serial.begin(9600); //speed parameter
  Serial.println("Data logger com sensor de temperatura DHT22 e sensor Ultrassônico");
  Serial.println();

  //Inicia o cartao SD
  Serial.println("Iniciando cartao SD...");
  if (!SD.begin(Pino_CS))
  {
    Serial.println("Falha na inicializacao do SD!");
    return;
  }
  Serial.println("Cartao SD iniciado. OK");
  Serial.println("dia-mes-ano;hora:min:sec;hum%;tempC;distcm");
  //Serial.println();

  //Verifica as condicoes do RTC
  if (! rtc.begin())
  {
    Serial.println("RTC nao encontrado!");
    while (1);
  }
  if (! rtc.isrunning())
  {
    Serial.println("RTC nao operante!");
    //A linha abaixo ajusta o RTC com a data e hora do momento da compilacao
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
    //A linha abaixo permite ajustar manualmente a data e hora do RTC
    //Formato: DateTime(ano, mes, dia, hora, minuto, segundo)
    //rtc.adjust(DateTime(2020, 6, 19, 14, 32, 0));
  }
  //Inicializa o DHT22
  dht.begin();
}




void loop(void)
{

  delay(2000);  // Delay so DHT-22 sensor can stabalize - 2 segundos é o mín


  hum = dht.readHumidity();  // Get Humidity value
  temp = dht.readTemperature(); // Get Temperature value
  
    // Calculate the Speed of Sound in M/S
  soundsp = 331.4 + (0.606 * temp) + (0.0124 * hum);

  // Convert to cm/ms
  soundcm = soundsp / 10000;

  duration = sonar.ping_median(iterations);

  // Calculate the distance
   dist = (duration/2)*soundcm;

  //Le as informacoes do RTC
  DateTime now = rtc.now();
  //Serial monitor informacoes de hora
  Serial.print(now.day() < 10 ? "0" : "");
  Serial.print(now.day(), DEC);
  Serial.print('-');
  Serial.print(now.month() < 10 ? "0" : "");
  Serial.print(now.month(), DEC);
  Serial.print('-');
  Serial.print(now.year() < 10 ? "0" : "");
  Serial.print(now.year(), DEC);
  Serial.print(";");
  Serial.print(now.hour() < 10 ? "0" : "");
  Serial.print(now.hour(), DEC);
  Serial.print(':');
  Serial.print(now.minute() < 10 ? "0" : "");
  Serial.print(now.minute(), DEC);
  Serial.print(':');
  Serial.print(now.second() < 10 ? "0" : "");
  Serial.print(now.second(), DEC);
  Serial.print(';');
  //Serial.print("Sound: ");
  //Serial.print(soundsp);
  //Serial.print(" m/s, ");
  //Serial.print("Hum:");
  Serial.print(hum);
  Serial.print(";");
  Serial.print(temp);
  Serial.print(";");
  Serial.print(dist);
  Serial.println(";");

  //Gravacao do cartao
  //Abre arquivo no SD para gravacao
  file = SD.open("nivel.csv", FILE_WRITE);
  //Grava os dados no cartao SD
  file.print(now.day() < 10 ? "0" : "");
  file.print(now.day(), DEC);
  file.print('-');
  file.print(now.month() < 10 ? "0" : "");
  file.print(now.month(), DEC);
  file.print('-');
  file.print(now.year() < 10 ? "0" : "");
  file.print(now.year(), DEC);
  file.print(";");
  file.print(now.hour() < 10 ? "0" : "");
  file.print(now.hour(), DEC);
  file.print(':');
  file.print(now.minute() < 10 ? "0" : "");
  file.print(now.minute(), DEC);
  file.print(':');
  file.print(now.second() < 10 ? "0" : "");
  file.print(now.second(), DEC);
  file.print(";");
  //file.print("Sound: ");
  //file.print(soundsp);
  //file.print(" m/s, ");
  //file.print("Temp:");
  file.print(hum);
  file.print("C,Umid:");
  file.print(temp);
  file.print(";");
  file.print(dist);
  file.println("cm");

  //Fecha arquivo
  file.close();
  //Delay ate a proxima leitura
  //delay(58000);
 delay(898000); //15 min

  //delay(1000); //tempo de delay para ver o programa rodas
  
}