Mein Elektronik Blog – Projekte für den Raspberry, Arduino, Esp8266

Daten loggen mit dem Arduino

Veröffentlicht am12. August 201716. August 2017Hinterlasse einen Kommentar

Mit dem Programm können mit dem Arduino, dem RTC-Modul DS3231 und einem SD-Karten Adapter Zeit und Temperatur geloggt und zur späteren Auswertung auf einer SD-Karte gespeichert werden.

// DS3231_Time &Temperature
// Copyright (C)2017 Harald Peusmann (harald [at] peusmann [dot] eu). All right reserved
// web: https://wp.peusmann.eu
//
// Kleines Daten-log-Programm 
// Mit diesem Programm werden Uhrzeit und Temperatur
// vom DS3231 auf eine SD-Karte geschrieben

#include <DS3231.h>
#include <SPI.h>
#include <SD.h>
#include <Wire.h>

// Init the DS3231 using the hardware interface
DS3231  rtc(SDA, SCL);
const int chipSelect = 10;
int entryId = 0;

void setup()
{
  // Setup Serial connection
  Serial.begin(115200);
  // Uncomment the next line if you are using an Arduino Leonardo
  //while (!Serial) {}
  //
  //Wire.begin();
  Serial.print("Initializing SD card...");

  // see if the card is present and can be initialized:
  if (!SD.begin(chipSelect)) {
    Serial.println("Card failed, or not present");
    // don't do anything more:
    return;
  }
  Serial.println("card initialized.");


  // Initialize the rtc object
  rtc.begin();
}

void loop()
{
  // Send current time & temperature
  Serial.print("Time: ");
  Serial.println(rtc.getTimeStr());
  Serial.print("Temperature: ");
  Serial.print(rtc.getTemp());
  Serial.println(" C");

  // open the file (datalog.txt) only 8+3 file names allowed.
  // note that only one file can be open at a time,
  // so you have to close this one before opening another.
  File dataFile = SD.open("datalog.txt", FILE_WRITE);

  // if the file is available, write to it:
  if (dataFile) {
    entryId ++;   // count every loop, the output on the SD-Card looks like
                  // 1,23:59:59,26.25
    Serial.println("Write to SD-Card:");
    dataFile.print(entryId);
    dataFile.print(",");
    dataFile.print(rtc.getTimeStr());
    dataFile.print(",");
    dataFile.println(rtc.getTemp());
    dataFile.close();
    // print to the serial port too:
    Serial.print(entryId);
    Serial.print(",");    
    Serial.print(rtc.getTimeStr());
    Serial.print(",");
    Serial.println(rtc.getTemp());
    Serial.println("End of Writing");
  }
  // if the file isn't open, pop up an error:
  else {
    Serial.println("error opening datalog.txt");
  }
    delay (30000);
}

// DS3231_Time &Temperature

// web: https://wp.peusmann.eu

// Kleines Daten-log-Programm

// Mit diesem Programm werden Uhrzeit und Temperatur

// vom DS3231 auf eine SD-Karte geschrieben

#include <DS3231.h>

#include <SPI.h>

#include <SD.h>

#include <Wire.h>

// Init the DS3231 using the hardware interface

DS3231 rtc(SDA, SCL);

const int chipSelect = 10;

int entryId = 0;

void setup()

{

// Setup Serial connection

Serial.begin(115200);

// Uncomment the next line if you are using an Arduino Leonardo

//while (!Serial) {}

//Wire.begin();

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

// see if the card is present and can be initialized:

if (!SD.begin(chipSelect)) {

Serial.println("Card failed, or not present");

// don't do anything more:

return;

}

Serial.println("card initialized.");

// Initialize the rtc object

rtc.begin();

}

void loop()

{

// Send current time & temperature

Serial.print("Time: ");

Serial.println(rtc.getTimeStr());

Serial.print("Temperature: ");

Serial.print(rtc.getTemp());

Serial.println(" C");

// open the file (datalog.txt) only 8+3 file names allowed.

// note that only one file can be open at a time,

// so you have to close this one before opening another.

File dataFile = SD.open("datalog.txt", FILE_WRITE);

// if the file is available, write to it:

if (dataFile) {

entryId ++; // count every loop, the output on the SD-Card looks like

// 1,23:59:59,26.25

Serial.println("Write to SD-Card:");

dataFile.print(entryId);

dataFile.print(",");

dataFile.print(rtc.getTimeStr());

dataFile.print(",");

dataFile.println(rtc.getTemp());

dataFile.close();

// print to the serial port too:

Serial.print(entryId);

Serial.print(",");

Serial.print(rtc.getTimeStr());

Serial.print(",");

Serial.println(rtc.getTemp());

Serial.println("End of Writing");

}

// if the file isn't open, pop up an error:

else {

Serial.println("error opening datalog.txt");

}

delay (30000);

}