Scott needed tot measure temperature inside his styrofoam enclosure to test insulation quality. So he came up with an Atmega48 and LM335 based temperature meter with ability to log data to PC using serial interface. Temperature meter can accept up to 8 sensors attached to ADC pins.
Microcontroller reads sensor data and pushes it through serial port. A python script on PC averages every 10 data points and displays on a screen. It is really simple and multipurpose temperature logger that can be used in many areas.