DTMF BASED DEVICE CONTROLLING SYSTEM
ABSTRACT
In this competitive world human cannot spare his time to perform his daily activities manually without any fail. The most important thing he forgets to switch off the room lights wherever not required. With this, even the power will be wasted up to some extent. This project gives the best solution for electrical power wastage. Also the manual operation is completely eliminated. The industrial appliances can be switched on/off using DTMF TECHNOLOGY.
The main function of ....etc

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This home appliances control or home automation project also uses the same DTMF decoder circuit section with little modifications to control home and office electrical appliances. Just connect your cell phone headset (headphone) jack to the mobile phone and then mobile will control electrical appliances and electrical equipment through the DTMF key pad of your cell phone. Here for demonstrating, we are controlling an electrical bulb using this circuit project but you can extend this circuit to control many electrical devices with some modificat ....etc

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to get information about the topic Controlling electrical devices using dtmf from mobile phones related topic refer the page link bellow

http://seminarsprojects.net/Thread-dtmf-based-device-controlling-system ....etc

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make a device driver that connect a PC with mobile phones and works as keyboard
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Introduction
The PC parallel port is a powerful platform, though inexpensive, for implementing projects dealing with the control of real-world peripherals. It can be used to control the printer as well as household and other electrical appliances.
The computer program included as part of the project controls relays through the interface circuit, which, in turn, switch the appliances on or off . The parallel port has 12 outputs including 8 data lines and 4 control lines.
The hardware circuit developed can be us ....etc

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To get full information or details of controlling robot using dtmf decoder please have a look on the pages

http://seminarsprojects.net/Thread-dtmf-based-mobile-controlled-robot

http://seminarsprojects.net/Thread-wireless-controlled-mine-detecting-robot

http://seminarsprojects.net/Thread-mobile-controlled-robot-using-dtmf-technology-for-industrial-application

http://seminarsprojects.net/Thread-mobile-controlled-robot-using-dtmf-technology--104350

http://seminarsprojects.net/Thread-mobile-controlled-robot-using-dtmf-technology

http://semi ....etc

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