本文介绍了基于单片机实现多路开关量控制系统，用于机械原理实验室机构陈列柜演示系统，并用ISD4004系列语音芯片构成语音解说系统。
This paper introduces a switch signal control system based on MCU, which has been used in a mechanism demonstrated system. This system USES ISD4004 series chip to form a voice system.
本文介绍了基于单片机实现多路开关量控制系统，用于机械原理实验室机构陈列柜演示系统，并用ISD4004系列语音芯片构成语音解说系统。
This paper introduces a switch signal control system based on MCU, which has been used in a mechanism demonstrated system. This system USES ISD4004 series chip to form a voice system.
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