Intelligent heat preservation is to ensure that the temperature within a certain range is controlled within a certain range through some equipment.

The temperature detection circuit sends the current ambient humidity signal to the processor after A/D conversion, and then the processor displays the current temperature signal through the LED (displaying the temperature value) through the operation of the software, and the processor runs the program , to judge whether the current temperature is within the preset range.

When the temperature detection circuit detects that the current ambient temperature is higher than the upper limit of the set value, the microprocessor will output a low level and start exhausting and cooling down;