说明：  原创，超声波清洗机控制板电路图和C语言原代码，包含定时、温控、双频切换、8位数码管显示等功能。使用STC15W401AS单片机。
(Original, ultrasonic cleaning machine control board circuit diagram and C language source code, including time, temperature, dual frequency switch, 8 digital tube display and other functions. STC15W401AS microcontroller.)