WIRE-LESS SPEAKERS TECHNOLOGY THROUGH MINI TRANSMITER

WIRELESS SPEAKERS FORM AMPLIFIERS AND MANY AUDIO ETC......

FROM AN AMPLIFIER AN TRANSMITTER WILL BE MODULATED AND SEND INTO SPACE WITH AN TRANSMITTER AND THESE SIGNALS WILL BE MODULATED INTO SPECIFIC FREQUENCY.AND RECEIVED BY SPEAKERS WHICH WERE WIRE-LESS AND DE-MODULATED AND CONVERT INTO SOUND WAVES..............

BY
   HARSHA
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Comments

dev harsha contact 7993987593 said…

nice

7 November 2013 at 05:30

Police Siren Circuit using NE555 Timer

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In this circuit, at the starting LED glow slowly, then grown brighter and once again slowly it became dim. The basis of the whole circuit is an operational amplifier IC named LM358. Circuit Diagram of LED Lamp Dimmer: LED Lamp Dimmer Circuit Diagram – ElectronicsHub.Org Working of LED Lamp Dimmer Circuit: LM358 is mainly made up of a package which contains two not dependent operational amplifiers of high gain. The most significant attribute of these IC is that we have no need of the independent power supply for the functioning of each comparator till the large range of the power supply. LM358 can be employed like transducer amplifier or can be worked as DC gain block etc. The huge DC voltage gain of the LM358 IC is 100db. For the only power supply this IC can work on the voltage range of 3V to 32V while for the twin power supply this IC work on the range of ±1. 5V to ±16V . And moreover large output voltage is also supported by it. Related Post: PWM L...

Fire Alarm Circuit

This circuit alerts us when there is a fire accident at home by ringing a siren sound . You might have seen fire alarms earlier but this is quite different as it generates a siren sound instead of a buzzer and also it uses basic components to generate that siren sound. We are aware that there are many integrated circuits which can be used to generate the siren effect but we preferred to use basic electronics components like resistors, capacitors and transistors to generate it so that you will clearly understand the internal working of it and it will be much useful for you as you will gain more knowledge by analyzing it instead of simply going or pre designed integrated circuits. Circuit Diagram of Fire Alarm: Description: This circuit uses a thermistor to sense the temperature. When it senses that the temperature of the environment is increasing above a given threshold, then it gives a signal. The temperature at which the circuit detects fire can be adjusted ...

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