Hello Everyone,
I am quite knew on Arduino and programming is not my strong point, I think I am missing something and maybe some of you can help me on this.
I am using a DHT11 and a SD module as I am looking forward to write (temperature & Humidity) on the SD card every 10 minutes for an offline tracking, everything seems to work perfectly, but if I remove the SD and insert it again within the writting intervals, then it stops writting. One solution could be to reset the arduino, but I would prefer another choice. The part of the code about wrtting is this one:
if(multiplo_diez==0 && decimal_min==decimal_min_prox){ //condition to jump in it every 10 min
Serial.println("Imprimiendo la memoria"); //Check if the timming conditions works
Hum = SD.open("Hum.txt", FILE_WRITE);
if (Hum) {
Hum.print("Humedad: ");
Hum.print(h);
Hum.print("% ");
Hum.print(hora); //Also print the time the mesure was done.
Hum.print(":");
Hum.print(minuto);
Hum.close();
}
Temp = SD.open("Temp.txt", FILE_WRITE);
if (Temp) {
Temp.print("Temperatura ");
Temp.print(t);
Temp.print("° ");
Temp.print(hora);
Temp.print(":");
Temp.print(minuto);
Temp.close();
}
decimal_min_prox++; //timming issues for mesuring
if(decimal_min_prox==6){
decimal_min_prox=0;
}
Hum = SD.open("Hum.txt"); //Checking the SD content
while (Hum.available()) {
Serial.write(Hum.read());
}
Hum.close();
}
Another courius thing about this is that I used a clock by software , and in 2 hours, it goes around 4 min backwards, I assume that I already had too much code (21,3 Kbytes: SD,DHT11 ,LCD, Fan Cooler) for the clock speed of the arduino (16Mhz) , hopefully in few days the RTC module is delivered. And just my personal opinion, next time I will try with a DHT22 since I dont find DHT11 quite stable & slow, but very cheap (in this part of the globe, we say "crocks in the pocket").
Hope this one finds everyone fine, and hope to get this done. Thanks in advance!
Luciano