Digital temperature control: The climate is not as good as usual now, and the temperature difference between day and night is large. Isn\'t the purpose of life to pursue perfection? If we want a good temperature environment and then control it, we need to use a temperature sensor to control the temperature. However, there are many types of temperature sensors. This time we use DS1821 to further sense and analyze the temperature, and finally hand it over to 89C51 for further judgment, and use relays for current control. Using sensors to measure temperature is not only seen everywhere in daily life (such as air conditioners, refrigerators, etc.), so we use some electronic parts to control and display it.
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