Hi. I'm trying to build a refrigeration cabinet thermometer monitor but i stuck in the max temperature value.
In refrigeration, the highest temperature is obtained only after the minimum temperature is reached. Ex: The reading process start in +19ºC into it reaches to -23ºC. At this point the cabinet stop working and the temperature rises into -17ºC, when it starts working again to get colder. The working temperature that i want to show in LCD is -23ºC : -17ºC, and not -23ºC : 19ºC.
Is there a way to get/show this data in Arduino LCD?
Thanks in advance