CLAP SWITCH


Here s a clap switch free from false
triggering. To turn on/off any ap
pliance, you just have to clap
twice. The cir-cuit changes its output state
only when you clap twice within the set
time period. Here, you ve to clap within 3
seconds.
The clap sound sensed by condenser
microphone is amplified by transistor T1.
The amplified signal provides negative pulse
to pin 2 of IC1 and IC2, triggering both the
ICs. IC1, commonly used as a timer, is
wired here as a monost ....etc

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An infra-red or wireless remote control has the disadvantage that the small, handy, remote transmitter is often misplaced. The sound operated switch has the advantage that the transmitter is always with you. This project offers a way to control up to four latching switches with two claps of your hand. These switches may be used to control lights or fans or anything else that does not produce too loud a sound. To prevent an occasional loud sound from causing malfunction, the circuit is normally quiescent. The first clap takes it out of standby ....etc

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A clap switch circuit is a classic beginner s project.
Equipment can be switched on and off by just clapping your hands. Add a tiny microcontroller and you can easily build-in some more useful features.

The microcontroller in this circuit makes it a simple job to add some useful features that are not seen on other clap switch designs:

Changeover relay contacts enable the unit to be wired in conjunction with a manual changeover switch so that manual override of the switched equipment is always possible.
The unit is only responsive to a specif ....etc

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I'm doing my research on clap switch project, can someone tell me the page link that have proper information, this is for my research. Its doesn't matter if it book, website or any article as long its has proper information like who posted the article, when the articles are posted and the circuit operation. ....etc

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What are the materials needed for the market survey of a clap switch project ....etc

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to get information about the topic 8051 microcontroller based mini projects full report ,ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-microcontroller-based-mini-projects

http://seminarsprojects.net/Thread-mini-projects-microcontroller-using-8051

http://seminarsprojects.net/Thread-microcontroller-based-projects--5921
....etc

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Summary of Clap Switch Circuit:

If you want to ON and OFF the device without a penny changing its space then this circuit is useful for you.
One more point of this circuit is that there is no fear of electric shocks, as it is not required to touch any of the mechanical switches physically.
Visual indication of devices is also provided.
With the help of this circuit, the fan speed can also be controlled by connecting the controller to individual outputs.

Clap Switch Circuit description:

Along with some of th ....etc

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i want the circuit diagram and the code for this system using 8051 microcontroller to make my major project of 4th year..

thanx ....etc

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This instructable not only gives the reader the information needed to create a clap-clap on/clap clap off switching circuit, but the logic used to make a hardware-only clap-on, clap off circuit. More information on a hardware-only version can be found in the final section of this instructable.

This circuit employs some very simple and cheap circuitry, and a simple program. It is relatively easy to make a hardware only clap on/off circuit, but I wanted to create a circuit that required two claps to switch on, and two claps to switch off. Th ....etc

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RADIO FREEQUENCY CONTROLLED, ROBOT

DESCRIPTION

A TE trigger the 3encoders are a series of CMOS LSIs for remote control system applications. They are capable of encoding 18 bits of information which consists of N address bits and 18_N data bits. Each address/data input externally trinary programmable if bonded out. It is otherwise set floating internally. Various packages of the 318encoders offer flexible combinations of programmable address/data to meet various application needs. The programmable address/data ....etc

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