DTMF - Electrónica de comunicaciones

Enlaces sobre DTMF encontrados en el directorio de www.electronicaenlared.com


DTMF Remote ControlDTMF Remote Control

DTMF Remote control – A software DTMF decoder for PIC 16F87X

Electrónica de comunicaciones

http://dtmf.voipintouch.net/content/dtmf.htm


DTMF (Dual Tone Multi Frequency) decoder Circuit schematic using M8870 | Electronics Circuits

DTMF (Dual Tone Multi Frequency) decoder Circuit schematic using M8870

Electrónica de comunicaciones

http://www.circuitsgallery.com/2012/09/battery-powered-portable-amplifier.html


Receptor Autonomo DTMF por Puerto Paralelo

Electrónica de comunicaciones

http://www.pablin.com.ar/electron/circuito/computer/dtmfrx


Telephone Interface (updated 12/30/09)

This project describes an Arduino/MCU interface to a telephone land-line. It's only been tested on a US version of the telephone system, but hopefully it will apply to the phone system in other countries. The basic idea was to allow the MCU to make calls by transmitting DTMF tones, and to receive and decode DTMF tones (keystrokes) made on the phone that was called.There are other possibilities however. Using the complete interface, it should be possible for the MCU to answer calls, and to transm.......

Electrónica de comunicaciones

http://brohogan.blogspot.com/2009/12/telephone-interface.html


Display of Dialed Telephone Numbers on Seven Segment Displays | DTMF based Projects

The main objective of this project is to display the dialed telephone number on seven segment display for better visibility. It is based on the concept of DTMF. Edgefx Technologies provides this embedded project for final year engineering students.

http://www.edgefxkits.com/display-of-dialed-telephone-numbers-on-seven-segment-displays


DTMF Cell Phone controlled Home appliances- Engineering automation project | Circuits Gallery

DTMF Cell Phone controlled Home appliances- Engineering automation project Gallery of Electronic Circuits and projects, providing lot of DIY circuit diagrams, Robotics & Microcontroller Projects, Electronic development tools

http://www.circuitsgallery.com/2012/07/dtmf-cell-phone-controlled-home-appliances-automation-project.html


Duel Tone Multi Frequency (DTMF Electronic Circuits

Duel tone multi frequency (DTMF) electronic circuits, schematics or diagrams. Discovercircuits.com is your portal to free electronic circuits links.

http://discovercircuits.com/D/dtmf.htm


DTMF Proximity Detector | EEWeb | Dtmf-proximity-detector| EEWeb

A DTMF-based IR transmitter and receiver pair can be used to realize a proximity detector. The circuit presented here enables you to detect any object cap

http://www.eeweb.com/blog/extreme_circuits/dtmf-proximity-detector


MSP430 launchpad with DTMF - MSP430 Ultra-Low Power 16-bit Microcontroller Forum - MSP430 Microcontrollers - TI E2E Community

Ask questions, share knowledge, explore ideas, and help solve problems with fellow engineers and TI experts.

http://e2e.ti.com/support/microcontrollers/msp430/f/166/t/256047.aspx


Radio Control Using DTMF

This Schematic using IC UM91214B for transmitter and using IC KT3170/8870 for Receiver, this IC usually use for telephone to generate DTMF tone. This Schematic using IC UM91214B for transmitter and using IC KT3170/8870 for Receiver, this IC usually use for telephone to generate DTMF tone........

http://radio-control-schematics.blogspot.com/2007/07/radio-control-using-dtmf.html


DTMF Phone Dialer

http://avtanski.net/projects/phone_dialer


DTMF RECEIVER

Today, most telephone equipment use a DTMF receiver IC. One common DTMF receiver IC is the Motorola MT8870 that is widely used in electronic communications circuits. The MT8870 is an 18-pin IC. It is used in telephones and a variety of other applications. When a proper output is not obtained in projects using this IC, engineers or technicians need to test this IC separately. A quick testing of this IC could save a lot of time in research labs and manufacturing industries of communica.......

http://electronics-diy.com/electronic_schematic.php?id=170


DTMF Decoder for PC

Our DTMF decoder can be powered from a 9V battery or from your parallel printer port. It can detect and display all 16 DTMF digits on your computer screen in real-time. The Window's program can be placed in the minimize mode and still detect tones while you use your computer to do other things like Net surfing!!!! We are now in the process of adding an DTMF decoder which will interface to the sound card gameport.......

http://www.electronics-diy.com/electronic_schematic.php?id=171


Radio Remote Control using DTMF Circuit

A collection of electronic circuits and projects to build.

http://www.free-electronic-circuits.com/circuits/radio-remote-control-using-dtmf.html


The Link A2B+1 (the Link Telephone Intercom - DTMF version)

The Link A2B+1 (the Link Telephone Intercom - DTMF version), schematics

http://iq-technologies.net/projects/telephone/014


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