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用AT89C2051产生DTMF信号
- 用89c2051模拟产生dtmf信号，广泛用于防盗报警、电话数据传输等；节省发号及收号电路，成本低。-with 89c2051 simulation of DTMF signals, widely used in anti-theft alarm, telephone data transmission; Savings and resumption of the circuit, and low cost.
PIC单片机在电话远程控制器中的低功耗设计
- 摘要：结合电话远程控制器的低功耗设计，探讨PIC单片机低功耗的设计方法，并给出设计电路原理图。 关键词：PIC单片机 低功耗设计 电话远程控制器 待机 -Abstract : Telephone Remote Controller of low-power design, to explore PIC low-power design method given circuit schematics. Keywords : PIC low power design standby Tel
dhykq9p
- Remote monitoring telephone circuit schematics
fdbj.rar
- 智能无线防盗报警器的设计,由AT89C51单片机控制电路、无线收发电路、DTMF（双音多频）电路、语音录放电路、电话接口电路等部分组成,Intelligent wireless burglar alarm design, by the AT89C51 single-chip control circuit, a wireless transceiver circuit, DTMF (Dual Tone Multi-Frequency) circuits, voice recording circ
molizaijidianlu
- 这是一个模拟电话机的摘挂机电路原理，电路图，以及实现，等等，希望能帮组到大家，将实践证明是可行的-This is an analog telephone Zhai hook circuit principle, schematics, and achieve, and so I hope you can help group to be proven to be feasible
wenjian
- 传统电路交换网和软交换网的区别，软交换的主要技术，软交换式电话网的演进方向，-The difference between traditional circuit-switched network and softswitch network, softswitch technology, the evolution of soft-switched telephone network direction,
wirelesstelephonecircuit
- wireless telephone circuit and analysis
warningsystem
- 单片机系统（控制）、矩阵键盘、LED显示和拨号报警系统（四部分）组成，能完成开锁、超时报警、拨号远程报警、超次锁定、管理员解密、修改用户密码基本的密码锁的功能-The system is composed by the monolithic integrated circuit system, the matrix keyboard, the LED demonstration and the digit dialing alarm system .it has functions of com
dianhuanyuanchengkongzhi
- 电话智能遥控器主要包括电话振铃检测电路，电话自动摘机和挂机电路，DTMF信号解码电路，语音提示急电路，音频放大电路，以及控制心脏CPU电路-Telephone remote control including smart phones ringing detection circuit, telephone and hang up automatically pick circuit, DTMF signal decoding circuit, urgent voice circuits, au
Some circuit
- 一些电路图，包括电脑红外遥控，调速风扇，无线免提电话电路，学习型红外遥控终端，智能脉冲自行车充电器等。-Some circuit, including computer infrared remote control, fan speed, wireless hands-free telephone circuits, a learning IR remote control terminals, smart pulse bicycle chargers.
dzzz
- 单片机电子制作文章，打包合集，包括：40kHZ超声波收发电路，ＦＭ调频发射，红外线自动门控制器电路，指纹识别系统，省电实用的电话灯等-SCM electronics manufacturing articles, packaged Collection, including: 40kHZ ultrasound transceiver circuit, FM FM transmitter, infrared automatic door control circuit, fingerprint i
9200A
- Holtek公司新近推出的DTMF电路HT9200A便是专用于电话联网控制的模块，它可以方便地与微控制器系统接口，以便组成智能型电话网络的测控系统-Holtek company recently introduced is the DTMF Circuit HT9200A telephone network dedicated to the control module, which can be easily and micro-controller system interface to f
MC34119[1]
- The MC34119 is a low power audio amplifier intergrated circuit intended (primarily) for telephone applications, such as in speakerphones. It provides differential speaker outputs to maximize output swing at low supply voltages (2.0 V minimum).
2
- MT8880的拨号子程序，适合电话报警电路的设计。原理很简单，要增加电话号码，就可以自己增加一个数组就可以了。-MT8880 dial-up routines for a telephone circuit. The principle is very simple, to increase the phone number, you can add an array of their own on it.
HK6911c
- 免电池来显电话机电路图HK6911c-ENV—电话机电路-Battery-free, significantly telephone circuit diagram
the-electrical-system-design
- 家庭报警系统的汇编代码，系统以89C51系列单片机为核心，通过MT8888拨打电话语音报警。-This paper introduces the design of intelligent controller using public telephone network to transmit information, in the speech circuit and hintsUser and system of communication between whenever and whe
chengkongjiaohuan1
- 数字程控交换实验系统及控制单元实验，1。熟悉CVT-CK数字程控交换实验系统的电路组成与主要部件的作用； 2．体会数字程控交换实验系统进行电话通信时的工作过程。-The experimental system of digital telephone switching and control unit experiments. Familiar with the CVT-CK experimental system of digital telephone switching circui
telephone-line-fault-testing
- 电话线出现断线或短路故障时，线路的阻抗则发生很大变化，利用电桥法测试出电阻的大小，进而得出线路故障的地方-Telephone lines appear disconnection or short circuit fault, the line impedance is changed, test out the size of resistance by Wheatstone bridge method, and then draw the line fault place
automatic-telephone-dialing-alarm
- 本文介绍的电路就能实现这个功能，该电路接到原电话机的电话线上使用，不需要人员的操作，能自动的、及时的完成报警和发出警报的动作。-This article describes a circuit can achieve this functionality, the circuit connected to the original use of the telephone line telephone operator does not need staff that can automatic
Telephone-Doorbell
- 利用单片机为主控芯片，通过检测按键是否按下来启动定时门铃，利用定时器控制蜂鸣器发出叮咚，此设计的门铃次数可调节，通过数码管显示调节的响铃次数与响铃时剩余的响铃次数。（附有PROTUES8.1仿真电路）-Using the MCU as the main control chip, by detecting whether the button is pressed to start the timer doorbell, the use of timer control buzzer issue