Temperature and Humidity data logger (BT & SD)

1#include <SPI.h>
2#include <SD.h>
3#include <DHT.h>
4#include <RTClib.h>
5#define
6  DHTPIN 2
7#define DHTTYPE DHT11
8DHT dht(DHTPIN, DHTTYPE);
9const int chipSelect
10  = 4; 
11#include <SoftwareSerial.h>
12SoftwareSerial SerialBT(9, 10);
13File
14  myFile;
15RTC_DS1307 rtc;
16void setup() {
17  dht.begin();
18  Serial.begin(9600);
19
20  SerialBT.begin(9600);
21  //SerialBT.println("Bluetooth connection is established");
22
23  while(!Serial);
24    if(! rtc.begin()) {
25      Serial.println("Couldn't
26  find RTC");
27      while (1);
28    }
29    else {
30      rtc.adjust(DateTime(F(__DATE__),
31  F(__TIME__)));
32    }
33    if(! rtc.isrunning()) {
34      Serial.println("RTC
35  is NOT running!");
36    }
37  Serial.print("Initializing SD card...");
38
39  if(!SD.begin(chipSelect)) {
40    Serial.println("initialization failed!");
41
42    return;
43  }
44  Serial.println("initialization done.");
45  myFile=SD.open("DATA.txt",
46  FILE_WRITE);
47  if (myFile) {
48    Serial.println("File opened ok");
49    //
50  print the headings for our data
51    myFile.println("Date,Time,Temperature ºC,Humidity
52  %");
53  }
54  myFile.close();
55}
56void loggingTime() {
57  DateTime now
58  = rtc.now();
59  myFile = SD.open("DATA.txt", FILE_WRITE);
60  if (myFile) {
61
62    myFile.print(now.year(), DEC);
63    myFile.print('/');
64    myFile.print(now.month(),
65  DEC);
66    myFile.print('/');
67    myFile.print(now.day(), DEC);
68    myFile.print(',');
69
70    myFile.print(now.hour(), DEC);
71    myFile.print(':');
72    myFile.print(now.minute(),
73  DEC);
74    myFile.print(':');
75    myFile.print(now.second(), DEC);
76    myFile.print(",");
77
78  }
79  myFile.close();
80  delay(1000);  
81}
82void logging() {
83  float
84  t = dht.readTemperature();
85    SerialBT.print(t);
86    Serial.print(t);
87
88    SerialBT.print(",");
89    Serial.print(",");
90  float h = dht.readHumidity();
91  
92    SerialBT.println(h);
93    Serial.println(h);
94  myFile = SD.open("DATA.txt",
95  FILE_WRITE);
96  if (myFile) {
97    myFile.print(t);
98    myFile.print(",");
99
100    myFile.println(h);
101  }
102  myFile.close();
103}
104void loop() {
105  //loggingTime();
106
107  logging();
108  delay(600000); // 600000 = 10 minutes
109}

1#include <SPI.h>
2#include <SD.h>
3#include <DHT.h>
4#include <RTClib.h>
5#define  DHTPIN 2
6#define DHTTYPE DHT11
7DHT dht(DHTPIN, DHTTYPE);
8const int chipSelect  = 4; 
9#include <SoftwareSerial.h>
10SoftwareSerial SerialBT(9, 10);
11File  myFile;
12RTC_DS1307 rtc;
13void setup() {
14  dht.begin();
15  Serial.begin(9600);
16  SerialBT.begin(9600);
17  //SerialBT.println("Bluetooth connection is established");
18  while(!Serial);
19    if(! rtc.begin()) {
20      Serial.println("Couldn't  find RTC");
21      while (1);
22    }
23    else {
24      rtc.adjust(DateTime(F(__DATE__),  F(__TIME__)));
25    }
26    if(! rtc.isrunning()) {
27      Serial.println("RTC  is NOT running!");
28    }
29  Serial.print("Initializing SD card...");
30  if(!SD.begin(chipSelect)) {
31    Serial.println("initialization failed!");
32    return;
33  }
34  Serial.println("initialization done.");
35  myFile=SD.open("DATA.txt",  FILE_WRITE);
36  if (myFile) {
37    Serial.println("File opened ok");
38    //  print the headings for our data
39    myFile.println("Date,Time,Temperature ºC,Humidity  %");
40  }
41  myFile.close();
42}
43void loggingTime() {
44  DateTime now  = rtc.now();
45  myFile = SD.open("DATA.txt", FILE_WRITE);
46  if (myFile) {
47    myFile.print(now.year(), DEC);
48    myFile.print('/');
49    myFile.print(now.month(),  DEC);
50    myFile.print('/');
51    myFile.print(now.day(), DEC);
52    myFile.print(',');
53    myFile.print(now.hour(), DEC);
54    myFile.print(':');
55    myFile.print(now.minute(),  DEC);
56    myFile.print(':');
57    myFile.print(now.second(), DEC);
58    myFile.print(",");
59  }
60  myFile.close();
61  delay(1000);  
62}
63void logging() {
64  float  t = dht.readTemperature();
65    SerialBT.print(t);
66    Serial.print(t);
67    SerialBT.print(",");
68    Serial.print(",");
69  float h = dht.readHumidity();  
70    SerialBT.println(h);
71    Serial.println(h);
72  myFile = SD.open("DATA.txt",  FILE_WRITE);
73  if (myFile) {
74    myFile.print(t);
75    myFile.print(",");
76    myFile.println(h);
77  }
78  myFile.close();
79}
80void loop() {
81  //loggingTime();
82  logging();
83  delay(600000); // 600000 = 10 minutes
84}