What is this?
Here is a simple easy to make temperature probe using easy to obtain components you may already have around. ^_^ It is perfect for interfacing with microcontrollers to provide temperature measuring ability.
- no hard to find pieces
- cheap and small sensor too
- circuit is simple
- mostly self explanitory, easy for beginners
For the diode probe use a piece of shrink wrap tubing for waterproofing
The results for my probe are plotted on the next graph
The precision is pretty good if you make a 2 or 3 point calibration like the one on the above graph