Ein freundliches Hallo von Haus zu Haus.
Aktuell bin ich dabei mir eine Temperatur Sensor Station auf zu bauen, welche die Temperaturen auf einer SD Karte sichern soll.
Dazu habe ich auch schon folgenden Code hier im Forum gefunden "Temperatur Logger mit DS18B2" aber da ich noch Anfänger bin, ist mir nicht so ganz klar wie ich das SetUp anschließen muss.
Hätte jemand vielleicht eine Zeichnung davon, wo ich was am Arduino anschließen muss oder wäre bereit mir diese an zu fertigen?
Vielen lieben dank für eure Hilfe.
#include <SD.h>
#include <Wire.h>
#include "RTClib.h"
#include <SPI.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#define ONE_WIRE_BUS 6 // DS18B20 an Pin 6 anngeschlossen
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
DeviceAddress insideThermometer = { 0x28, 0x03, 0xF6, 0xC2, 0x03, 0x00, 0x00, 0xA7 };
// how many milliseconds between grabbing data and logging it. 1000 ms is once a second
#define LOG_INTERVAL 3000 // mills between entries (reduce to take more/faster data)
// how many milliseconds before writing the logged data permanently to disk
// set it to the LOG_INTERVAL to write each time (safest)
// set it to 10*LOG_INTERVAL to write all data every 10 datareads, you could lose up to
// the last 10 reads if power is lost but it uses less power and is much faster!
#define SYNC_INTERVAL 3000 // mills between calls to flush() - to write data to the card
uint32_t syncTime = 0; // time of last sync()
#define ECHO_TO_SERIAL 1 // echo data to serial port
#define WAIT_TO_START 0 // Wait for serial input in setup()
// the digital pins that connect to the LEDs
#define redLEDpin 2
#define greenLEDpin 3
// The analog pins that connect to the sensors
//#define tempPin 6
//#define tempPin 1 // analog 1
//#define BANDGAPREF 14 // special indicator that we want to measure the bandgap
//#define aref_voltage 3.3 // we tie 3.3V to ARef and measure it with a multimeter!
//#define bandgap_voltage 1.1 // this is not super guaranteed but its not -too- off
RTC_DS1307 RTC; // define the Real Time Clock object
// for the data logging shield, we use digital pin 10 for the SD cs line
const int chipSelect = 9;
// the logging file
File logfile;
void error(char *str)
{
Serial.print("error: ");
Serial.println(str);
// red LED indicates error
digitalWrite(redLEDpin, HIGH);
while(1);
}
void setup(void)
{
Serial.begin(9600);
Serial.println();
sensors.begin(); DEC; // Start up the library
sensors.setResolution(insideThermometer, 9);
// use debugging LEDs
pinMode(redLEDpin, OUTPUT);
pinMode(greenLEDpin, OUTPUT);
#if WAIT_TO_START
Serial.println("Type any character to start");
while (!Serial.available());
#endif //WAIT_TO_START
// initialize the SD card
Serial.print("Initializing SD card...");
// make sure that the default chip select pin is set to
// output, even if you don't use it:
pinMode(9, OUTPUT);
// see if the card is present and can be initialized:
if (!SD.begin(chipSelect)) {
error("Card failed, or not present");
}
Serial.println("card initialized.");
// create a new file
char filename[] = "DATALOG.TXT";
for (uint8_t i = 0; i < 100; i++) {
filename[6] = i/10 + '0';
filename[7] = i%10 + '0';
if (! SD.exists(filename)) {
// only open a new file if it doesn't exist
logfile = SD.open(filename, FILE_WRITE | O_APPEND);
break; // leave the loop!
}
}
if (! logfile) {
error("couldnt create file");
}
Serial.print("Logging to: ");
Serial.println(filename);
// connect to RTC
Wire.begin();
if (!RTC.begin()) {
logfile.println("RTC failed");
#if ECHO_TO_SERIAL
Serial.println("RTC failed");
#endif //ECHO_TO_SERIAL
}
logfile.println("millis,stamp,datetime,light,temp,vcc");
#if ECHO_TO_SERIAL
Serial.println("millis,stamp,datetime,light,temp,vcc");
#endif //ECHO_TO_SERIAL
// If you want to set the aref to something other than 5v
//analogReference(EXTERNAL);
}
void printTemperature(DeviceAddress deviceAddress)
{
float tempC = sensors.getTempC(deviceAddress);
if (tempC == -127.00) {
Serial.print("Error getting temperature");
}
else {
//Serial.print("C: ");
Serial.print(tempC);
}
}
void loop(void)
{
DateTime now;
// delay for the amount of time we want between readings
delay((LOG_INTERVAL -1) - (millis() % LOG_INTERVAL));
digitalWrite(greenLEDpin, HIGH);
// log milliseconds since starting
uint32_t m = millis();
logfile.print(m); // milliseconds since start
logfile.print(", ");
#if ECHO_TO_SERIAL
Serial.print(m); // milliseconds since start
Serial.print(", ");
#endif
// fetch the time
now = RTC.now();
// log time
logfile.print(now.unixtime()); // seconds since 1/1/1970
logfile.print(", ");
logfile.print('"');
logfile.print(now.year(), DEC);
logfile.print("/");
logfile.print(now.month(), DEC);
logfile.print("/");
logfile.print(now.day(), DEC);
logfile.print(" ");
logfile.print(now.hour(), DEC);
logfile.print(":");
logfile.print(now.minute(), DEC);
logfile.print(":");
logfile.print(now.second(), DEC);
logfile.print('"');
#if ECHO_TO_SERIAL
Serial.print(now.unixtime()); // seconds since 1/1/1970
Serial.print(", ");
Serial.print('"');
Serial.print(now.year(), DEC);
Serial.print("/");
Serial.print(now.month(), DEC);
Serial.print("/");
Serial.print(now.day(), DEC);
Serial.print(" ");
Serial.print(now.hour(), DEC);
Serial.print(":");
Serial.print(now.minute(), DEC);
Serial.print(":");
Serial.print(now.second(), DEC);
Serial.print('"');
#endif //ECHO_TO_SERIAL
sensors.requestTemperatures();
float tempinsideThermometer = sensors.getTempC(insideThermometer); //damit wird die Temperatur an tempinsideThermometer gegeben
// analogRead(tempPin);
// delay(10);
//int tempReading = analogRead(tempPin);
//int tempReading = digitalRead(tempPin);
// converting that reading to voltage, for 3.3v arduino use 3.3, for 5.0, use 5.0
// float voltage = tempReading * aref_voltage / 1024;
//float temperatureC = (voltage - 0.5) * 100 ;
//float temperatureF = (temperatureC * 9 / 5) + 32;
logfile.print(", ");
logfile.print(tempinsideThermometer);
#if ECHO_TO_SERIAL
Serial.print(", ");
Serial.print(tempinsideThermometer);
#endif //ECHO_TO_SERIAL
// Log the estimated 'VCC' voltage by measuring the internal 1.1v ref
logfile.println();
#if ECHO_TO_SERIAL
Serial.println();
#endif // ECHO_TO_SERIAL
digitalWrite(greenLEDpin, LOW);
// Now we write data to disk! Don't sync too often - requires 2048 bytes of I/O to SD card
// which uses a bunch of power and takes time
if ((millis() - syncTime) < SYNC_INTERVAL) return;
syncTime = millis();
// blink LED to show we are syncing data to the card & updating FAT!
digitalWrite(redLEDpin, HIGH);
logfile.flush();
digitalWrite(redLEDpin, LOW);
}
