below is my program to read tempeture and save it to the EEPROM then read it when needed.
#include <math.h>
#include <EEPROM.h>
#define DELAY (2 * 60) //(mins * seconds)
int value = 0;
double Thermister(int RawADC) {
double Temp;
Temp = log(((10240000/RawADC) - 10000));
Temp = 1 / (0.001129148 + (0.000234125 * Temp) + (0.0000000876741 * Temp * Temp * Temp));
Temp = Temp - 273.15; // Convert Kelvin to Celcius
return Temp;
}
void delaySeconds(int delaytime = 0) {
for(int i = 0; i <= delaytime; i++){
delay(1000);
}
}
void setup() {
Serial.begin(9600);
Serial.println("Would you like to record temperatures? (y/N)");
do {;} while(Serial.available() <= 0); // Check for iput from serial
if((char)Serial.read() == (char)'y')
{
for(int i = 0; i < 512; i++) {
Serial.print("Reading temperatures, please wait : #");
Serial.println(i);
EEPROM.write(i, int(Thermister(analogRead(0))));
delaySeconds(DELAY);
}
}
for(int i = 0; i < 512; i++) {
value = EEPROM.read(i);
Serial.print(i);
Serial.print("\t");
Serial.print(value);
Serial.println();
}
}
void loop() {
}
