Hi,
If you like to use it, here’s some code I use to measure NTC’s very accurately.
http://pastebin.com/8bxqD8NX
http://pastebin.com/Cf2Qjf8c
http://pastebin.com/m17bwXAV
It is portred to the Spark, and it compiles correctly.
You can uses NUM_THERMOMETERS to determine how many NTC’s you want to measure.
I use the code in a project where I control a woodburner that heats my house.
Enjoy!
Marcus