Stap 3: De Code van de steekproef
#include#define aref_voltage 3
Const int tmpPin = A2;
char buffer [50];
int tmpReading;
VOID Setup {}
}
void loop {}
tmpReading = analogRead(tmpPin);
printf ("tmpReading = %d\n",tmpReading);
zweven spanning = tmpReading * aref_voltage;
spanning / = 4096;
zweven tmpC = (voltage - 0,5) * 100;
sprintf (buffer, "{\"value\":%4.2f}\n", tmpC);
BESTAND * fp = fopen ("/ home/ubuntu/datafile.txt","w+");
fwrite (buffer, sizeof(char), strlen(buffer), fp);
fclose (fp);
afsluiten (0);
}