1. Hardware 1. STC single-chip minimum system circuit 2. DS18B20 temperature acquisition 3. 4-bit common anode digital tube display driver, triode and chip driver are not allowed 4. Add a button for measurement 5. Add a buzzer for prompting 2. Software 1. The temperature displays 3 effective values, retains one decimal point, and adds the display of the temperature c symbol 2. When the button is not pressed, it means that the temperature is not measured, and the digital tube displays a single horizontal line in the middle for 500ms 3. After the button is pressed, the current measured temperature value is displayed 4. When the temperature is 37 degrees higher than the human body temperature, the buzzer sounds an alarm, indicating that the current measurement is in a high fever state
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