Reading a thermistor seems like a pretty straightforward task, and there are a lot of guides on how to do it, either using just the beta value, or using the full set of coefficients for the Steinhart-Hart equation. Aylo writes:
I wanted and needed to do something a little different, because I wanted to measure temperatures somewhat accurately over a wide range (25-200C) with a single thermistor, for an upgraded version of the PCB hotplate.
Measuring this range is difficult because the resistance of the thermistor changes a lot over the range I care about. at 25C, this particular model is 100k ohms, and at 200C it is about 1k ohms.
Check out the solution in the post here.
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