说明：  本系统对温度控制的要求精度较高，因此考虑使用PID控制来控制系统温度，加热元件的控制采用PWM波来进行精确控制。由温度传感器来传回温度数据，单片机处理数据并发出相应的动作，从而保证温度在控制范围之内。
(The temperature control system require high accuracy, so consider using the PID control to control the system temperature, the heating element is controlled by the PWM wave to be precisely controlled. By the temperature sensor to return the temperature data, the microcontroller processes the data and send the appropriate action to ensure the temperature control range.)