Reading / Printing Dallas OneWire Temperature Sensors (Solved)

                if(i==0){
                  Sensor1 == tempDeviceAddress;
                }
                if(i==1){
                  Sensor2 == tempDeviceAddress;
                }
                if(i==2){
                  Sensor3 == tempDeviceAddress;
                }

The result of the equality operator (==) will be true or false. You discard the result, so the whole exercise was a waste of time.

Now, the assignment operator (=), would have been more useful.