【摘要】 本文详细介绍了用于原油、成品油液位液温智能测量报警系统中８０９８单片机控制下的语音报警电路ＨＹ４２０及接口的硬软件设计。更多还原

【Abstract】 It was introduced in details in this article that hardware and sofrware were designed for interface between microcontroller 8098 and phonetic electric circuit HY420, the HY420 controlled by 8098 have been used in a intelligent sisthem which was used to mesure liquid face and liquid temperature in some oil tank and give alarms.更多还原