How well does it work: Gameport temperature thermistor?
Using the gameport to read a thermistor: there are many articles on the web about using the gameport to read sensors. I have found that with my PC, after applying the gameport calibration above, the repeatability and accuracy is quite good. I use F readings and single samples are within +/- 0.5 degree F of each other. When average over 60 samples (1 minutes worth), the repeatability is +/ 0.1 degree F. As far as accuracy goes, I did a lot of work on the thermistor coefficients when I built the peltier power control for my DSI. See the bottom of my page: Thermistor info at bottom of page The A, B and C of the Steinhart-Hart equations change based on the temperature range they are calculated for. I use ranges of 32F through 75F and 0F through 32F. All in all, compared with two other digital thermometers, the accuracy is +/- 1 degree F from 25F through 75F, being at the upper end of the range of deviation below 40F (hence the need for different A, B and C).
