After mapping an LM335 temp sensor (10mv per degree C.) I thought I would see a .5 C resolution. What might I be missing? I'm new to Arduino and C++. I only see a whole number +.00 C const int numReadings = 20; int readings[numReadings]; // the readings from the analog input int readIndex =…

Hi @cliffcoulter , You are using the map() function to generate and print the final value. The map() function only works with integer numbers. For the mathematically inclined, here’s the whole function long map(long x, long in_min, long in_max, long out_min, long out_max) { return (x - in_min) …

Temperature result in serial monitor

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ruilviana November 22, 2021, 1:28am 11

Hi
No, no reason.
you can define them at the beginning yes.
And defining in the beginning does not need to define in the calculation.

RV - mineirin

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Temperature result in serial monitor

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