كيفية برمجة الاردوينو لتسجيل بيانات درجة الحرارة مع بطاقة الذاكرة اكتب تعليقُا

#include <OneWire.h>
#include <DallasTemperature.h>

#include <SPI.h>
#include <SD.h>

File myFile;

// change this to match your SD shield or module;
const int chipSelect = 10;

// Data wire is plugged into digital pin 2 on the Arduino
#define ONE_WIRE_BUS 2

// Setup a oneWire instance to communicate with any OneWire device
OneWire oneWire(ONE_WIRE_BUS);  

// Pass oneWire reference to DallasTemperature library
DallasTemperature sensors(&oneWire);

void setup(void)
{ 
  sensors.begin();  // Start up the library
  Serial.begin(9600);
}

void loop(void)
{ 
  // Send the command to get temperatures
  sensors.requestTemperatures(); 

  while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo only
  }


  Serial.print("Initializing SD card...");

  if (!SD.begin()) {
    Serial.println("initialization failed!");
    return;
  }
  Serial.println("initialization done.");

  // open the file. note that only one file can be open at a time,
  // so you have to close this one before opening another.
  myFile = SD.open("test.txt", FILE_WRITE);

  // if the file opened okay, write to it:
  if (myFile) {
    Serial.println("Writing to test.txt...");
      //print the temperature in Celsius
  Serial.print("Temperature: ");
  Serial.print(sensors.getTempCByIndex(0));
  Serial.print((char)176);//shows degrees character
  Serial.print("C  |  ");
  
  //print the temperature in Fahrenheit
  Serial.print((sensors.getTempCByIndex(0) * 9.0) / 5.0 + 32.0);
  Serial.print((char)176);//shows degrees character
  Serial.println("F");
      //print the temperature in Celsius
        myFile.print("Temperature");
        myFile.print(sensors.getTempCByIndex(0));
        myFile.print((char)176);
        myFile.print("C  |  ");
        
          //print the temperature in Fahrenheit
        myFile.print((sensors.getTempCByIndex(0) * 9.0) / 5.0 + 32.0);
        myFile.print((char)176);
        myFile.println("F");
          delay(500);
    // close the file:
    myFile.close();
    Serial.println("done.");
  } else {
    // if the file didn't open, print an error:
    Serial.println("error opening test.txt");
  }
  
  delay(100);
}