I have tried DS18B20, LM34, MAX31855.... they don't work - I get random readings no matter what. Tried different boards Uno, Mega, STM, ESP32. Everytime I get different bad readings. Maybe all those circuits are bad or defective.... All I want to do is measure temperature with low degree values -…

Popular temperature sensors - which one?

Deous April 8, 2018, 3:58am 4

I am working on AC cooling project and maybe liquid nitrogen, R410a, R22 temperature measurement.

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