We worked on a version of thermal fishing bob described here:

[http://publiclab.org/wiki/thermal-fishing-bob](http://publiclab.org/wiki/thermal-fishing-bob)

We found there were problems with the circuit diagram shown in this wiki page.

This version uses a 10K Thermistor from Ada Fruit:

[http://www.adafruit.com/products/372](http://www.adafruit.com/products/372)