DS18B20 Help

Hello,

I've been trying to follow this tutorial on using the DS18B20 temperature sensor:

however, I can upload the program to the Arduino when it's not hooked up to the circuit. But when it is my computer does recognize the device and I can't use the serial monitor. It says it cannot find COM3.

Any ideas?

I'm running windows 7 and an arduino duemilanove

Are you certain that the sensor is connected to digital pin 3?

Positive, I've started experimenting with a IR range finder and reading its output using the serial monitor which works fine.

My temperature sensor also got very very hot so I might of fried it which could maybe explain why its happening.

tried this lib ? - MilesBurton.com - comes with lots of examples...

My temperature sensor also got very very hot so I might of fried it which could maybe explain why its happening.

Indeed - a sensor that measured its own selfheating would be entirely pointless. Sounds like you connected it wrong. Always check and double check pinouts before applying power, its a lot cheaper!

They apparently get hot and destroy themselves if you connect Gnd & 5v the wrong way round......