Thanks Mike These 2 links use the 3 terminal device LM35D, its advantage is that its output is linear and calibrated, its disadvantage is that it requires +5V from the USB socket
> http://www.flickr.com/photos/curiouslee/sets/72157631756048008/with/8081515681/ > http://www.reducativa.com/xo/man-sis-sensoresdetemperatura.pdf I chose to use a 2 terminal thermistor at http://wiki.sugarlabs.org/go/Activities/TurtleArt/Using_Turtle_Art_Sensors#Measuring_Temperature Not needing a USB connector, it is safer for the XO and lower component cost, the disadvantage is that it is nonlinear. The need to use a calibration function is not as much a disadvantage as it may seem, its another learning experience for the kids. Tony _______________________________________________ IAEP -- It's An Education Project (not a laptop project!) IAEP@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/iaep
