摘要
介绍一种由 AT89C5 2单片机和 ISD14 2 0语音芯片组成的自动报警系统的设计方案 ,给出了系统框图、硬件电路及部分程序设计方法。
In this paper, a design of voice alarm system against detecting flammable gas is proposed based on AT89C52 and ISD1420 chip, a description is also given of the principle, its hardware circuit and software programming.
出处
《现代电子技术》
2003年第20期5-6,共2页
Modern Electronics Technique
