// mode: 0 = temperature; 1 = humidity
unsigned short int SHT15::getraw (unsigned short int * p, unsigned short int mode) {
unsigned short int i = 0;
txbegin ();
* p = 0;
mode = mode ? 0x05 : 0x03;
if (txdata(mode)) return 1; // write error
while (i < 240) {
delay (3);
if (digitalRead (SHT15_DAT) == 0) {
i = 0;
break;
}
}
i++;
if (i) return 3; // timeout
i = rxdata (1);
*p = (i << 8) | rxdata (0);
return 0;
}
char read(uint8_t address)
{
//returns the contents of any 1 byte register from any address
//sets the MSB for every address byte (READ mode)
char byte;
address &= 0x7F;
cbi(CSPORT,CS);
txdata(address);
byte = rxdata();
sbi(CSPORT,CS);
return byte;
}