1、 基于单片机的远程电话控制系统基于单片机的远程电话控制系统 摘要摘要 随着移动通讯行业的快速发展手机已经走进了千家万户。在中国几乎 每个成年人都有一部手机。但是利用手机进行远程控制的技术却不是很多。 如何利用手机这种通信方式控制日常生活中的电子产品是本设计所要研究 的课题。众所周知最近这些年通信行业和电子行业有了飞速的发展，在这 个基础上本文设计了一种通过 GSM 模块实现远程控制的系统。此系统以 STC89C52RC 单片机和 SIM900A 模块及 ISD1760 语音芯片为电路核心， 通过 公共移动通信网络，实现对远程电器设备的智能化控制。 关键词关键词: : STC89C52RC 单片
2、机 双音多频 DTMF 远程控制 Abstract with the rapid development of mobile phone mobile communications industry have already walked into thousands of households. In China almost every adult has a mobile phone. But for use in remote control technology is not a lot of mobile phone. How to use the mobile phone thi
3、s communication mode control of electronic products in daily life is the design of the subject to be studied. As everyone knows in recent years the communications industry and electronic industry has made rapid development, on this basis, this paper designs a system to realize remote control through
4、 the GSM module. This system is based on STC89C52RC MCU and SIM900A module and the ISD1760 speech chip as the core circuit, through the public mobile communication network, the realization of intelligent control of remote electrical equipment. Keywords: STC89C52RC single chip dual tone multi frequency DTMF remote control 目录目录 1 绪 论 5 2 系统设计原理 . 7 3 硬件电路设计 . 10 3.1 复位电路 10 3.2 控制输出电路. 11 3.3 晶振电路 12 3.4 SIM900A 模块接口电路 . 13 3.5 ISD 语音芯片工作电路 16 4 软件设计 21 4.1 程序说明 21 4.2 函数申明及变量定义 22 4.3 初始化函数 24
