Temperaturmessung mit mehreren DS18S20

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Hallo maverick1509,

meinst du so:

#include <OneWire.h>
#include <DallasTemperature.h>

OneWire  ds(28); //pin für ds1820

//DeviceAdressen der einzelnen ds1820 Temperatursensoren angeben. (loop anpassen)
DeviceAddress sensor1 = { 0x28, 0x36, 0x2F, 0x99, 0x4, 0x0, 0x0, 0x3A };
DeviceAddress sensor2 = { 0x28, 0xB1, 0xB7, 0xBD, 0x4, 0x0, 0x0, 0xA2 };


char sensor1Name[] = "Unterschrank: ";
char sensor2Name[] = "W.-Temp: ";


void setup(void) 
{
  Serial.begin(9600);
}

void writeTimeToScratchpad(byte* address)
{
  //reset the bus
  ds.reset();
  //select our sensor
  ds.select(address);
  //CONVERT T function call (44h) which puts the temperature into the scratchpad
  ds.write(0x44,1);
  //sleep a second for the write to take place
  delay(1000);
}

void readTimeFromScratchpad(byte* address, byte* data)
{
  //reset the bus
  ds.reset();
  //select our sensor
  ds.select(address);
  //read the scratchpad (BEh)
  ds.write(0xBE);
  for (byte i=0;i<9;i++){
    data[i] = ds.read();
  }
}

float [color=orange]getTempC[/color](byte* address)
{
  int tr;
  byte data[12];

  writeTimeToScratchpad(address);

  readTimeFromScratchpad(address,data);

  //put in temp all the 8 bits of LSB (least significant byte)
  tr = data[0];

  //check for negative temperature
  if (data[1] > 0x80)
  {
    tr = !tr + 1; //two's complement adjustment
    tr = tr * -1; //flip value negative.
  }

  //COUNT PER Celsius degree (10h)
  int cpc = data[7];
  //COUNT REMAIN (0Ch)
  int cr = data[6];

  //drop bit 0
  tr = tr >> 1;

  return tr - (float)0.25 + (cpc - cr)/(float)cpc;
}

void loop(void) 
{
 
  float temp1 =getTempC(sensor1);
  float temp2 =getTempC(sensor2);
  


  Serial.print(sensor1Name);
  Serial.print(temp1);
  Serial.println(" Celsius");

  Serial.print(sensor2Name);
  Serial.print(temp2);
  Serial.println(" Celsius");


  Serial.println();
  delay(1000);
}

zeigt aber leider immer noch die Temperatur in Fahrenheit an.

Gruß Jens