Bonsoir, personne pour me filer un coup de pouce concernant l'ajout de la date et l'heure à mes mesures?
J'ai déjà essayé pas mal de chose, les données sont bien enregistrées sur ma carte SD mais il me manque l'horodatage. Voici mon code si quelqu'un peut m'aiguiller merci.
/*
SD card datalogger
The circuit:
* analog sensors on analog ins 0, 1, and 2
* SD card attached to SPI bus as follows:
** MOSI - pin 11
** MISO - pin 12
** CLK - pin 13
** CS - pin 4 (for MKRZero SD: SDCARD_SS_PIN)
*/
#include <SPI.h>
#include <SD.h>
#include <stdio.h>
#include <DS1302.h>
#include <Time.h>
const int chipSelect = 4;
const int kCePin = 5; // Chip Enable
const int kIoPin = 6; // Input/Output
const int kSclkPin = 7; // Serial Clock
// Create a DS1302 object.
DS1302 rtc(kCePin, kIoPin, kSclkPin);
String dayAsString(const Time::Day day) {
switch (day) {
case Time::kSunday: return "Sunday";
case Time::kMonday: return "Monday";
case Time::kTuesday: return "Tuesday";
case Time::kWednesday: return "Wednesday";
case Time::kThursday: return "Thursday";
case Time::kFriday: return "Friday";
case Time::kSaturday: return "Saturday";
}
return "(unknown day)";
}
void printTime() {
// Get the current time and date from the chip.
Time t = rtc.time();
// Name the day of the week.
const String day = dayAsString(t.day);
// Format the time and date and insert into the temporary buffer.
char buf[50];
snprintf(buf, sizeof(buf), "%s %04d-%02d-%02d %02d:%02d:%02d",
day.c_str(),
t.yr, t.mon, t.date,
t.hr, t.min, t.sec);
}
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
// Initialize a new chip by turning off write protection and clearing the
// clock halt flag. These methods needn't always be called. See the DS1302
// datasheet for details.
rtc.writeProtect(false);
rtc.halt(false);
// Make a new time object to set the date and time.
// Sunday, September 22, 2013 at 01:38:50.
Time t(2017, 10, 20,19, 38, 50, Time::kThursday);
// Set the time and date on the chip.
rtc.time(t);
while (!Serial) {
; // wait for serial port to connect. Needed for native USB port only
}
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.");
}
void loop() {
// make a string for assembling the data to log:
String dataString = "";
// read three sensors and append to the string:
C'est à ce niveau que je souhaite inscrire la date et l'heure mais je ne vois pas quelle syntaxe utiliser
float sensor1=analogRead(A0);
float temperatureV = ((sensor1*5)/1023);
float temp=((temperatureV-0.5)*100);
dataString += String(temp);
dataString += ",";
float sensor2=analogRead(A1);
float pressionV = ((sensor2*5)/1023);
float pression = pressionV*1000;
dataString += String(pression);
dataString += ",";
float sensor3=analogRead(A2);
float hygroV = ((sensor3*5)/1023);
float hygro = ((hygroV-0.826)/0.0315);
dataString += String(hygro);
// open the file. 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) {
dataFile.println(dataString);
dataFile.close();
// print to the serial port too:
Serial.println(dataString);
delay(10000);
}
// if the file isn't open, pop up an error:
else {
Serial.println("error opening datalog.txt");
}
}
