void DallasTemperature::begin(void) {
DeviceAddress deviceAddress;
_wire->reset_search();
devices = 0; // Reset the number of devices when we enumerate wire devices
while (_wire->search(deviceAddress)) {
if (validAddress(deviceAddress)) {
#if REQUIRESPARASITEPOWERAVAILABLE
if (!parasite && readPowerSupply(deviceAddress)) parasite = true;
#endif
ScratchPad scratchPad;
readScratchPad(deviceAddress, scratchPad);
#if REQUIRESONLY12BITCONVERSION
setResolution(deviceAddress, 12);
#else
//bitResolution = max(bitResolution, getResolution(deviceAddress));
uint8_t newResolution = getResolution(deviceAddress);
if (newResolution > bitResolution) { // the max macro may call getResultion multiple times.
bitResolution = newResolution;
}
#endif
devices++;
}
}
}
// initialise the bus
void DallasTemperature::begin(void){
DeviceAddress deviceAddress;
_wire->reset_search();
devices = 0; // Reset the number of devices when we enumerate wire devices
while (_wire->search(deviceAddress)){
if (validAddress(deviceAddress)){
if (!parasite && readPowerSupply(deviceAddress)) parasite = true;
bitResolution = max(bitResolution, getResolution(deviceAddress));
devices++;
}
}
}
// initialize the bus
void DallasTemperature::begin(void)
{
DeviceAddress deviceAddress;
_wire->reset_search();
while (_wire->search(deviceAddress))
{
if (validAddress(deviceAddress))
{
if (!parasite && readPowerSupply(deviceAddress)) parasite = true;
ScratchPad scratchPad;
readScratchPad(deviceAddress, scratchPad);
if (deviceAddress[0] == DS18S20MODEL) conversionDelay = TEMP_12_BIT; // 750 ms
else if (scratchPad[CONFIGURATION] > conversionDelay) conversionDelay = scratchPad[CONFIGURATION];
devices++;
}
}
}