Can you paste the piece of code in question?
It should be simple, but there's a couple of different ways to read these sensors.
The most common (probably) way is to simply read them by "first", "second" etc.
The other way is to find the address of the device, and read from exactly that device.
Assuming you're using the Dallas library, the code is:
#include <OneWire.h>
#include <DallasTemperature.h>
#define ONE_WIRE_BUS 9
OneWire one_wire(ONE_WIRE_BUS);
DallasTemperature sensors(&one_wire);
void setup()
{
sensors.begin();
}
void loop()
{
float temp1 = sensors.getTempCByIndex(0);
...
}
Adding another sensor should be as simple as just adding another line to the code:
void loop()
{
float temp1 = sensors.getTempCByIndex(0);
float temp2 = sensors.getTempCByIndex(1);
...
}
But you will have to test it to ensure the sensor you are reading is actually the first sensor.
I'm not sure how the sensors are sorted on the one-wire bus, so when adding a new sensor it might become sensor0, and the original one pushed out to sensor1. You'll need to test.
If you can post the relevant code section from your programme, I can take a look.
