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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dev harsha contact 7993987593 said…

nice

7 November 2013 at 05:30

LED DIMMER WITH CIRCUIT DIAGRAM

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 LED Dimmer

WIRELESS SWITCH CIRCUIT DIAGRAM

Generally appliances that we used in our home are being controlled with the help of devices like switches, senors. However sometimes it is dangerous to have physical contact with these switches. So to overcome these dangers, here we have explained a circuit that needs no physical contact with the appliance. In these circuits all you need is to pass your hand above LDR. As you first pass your hand over LDR the device connected with it started and remain in that state till you again pass your hand above LDR. These circuits are mainly depending on two ICs. First one is LM714 which is an operational amplifier. These IC is used to increase the voltage level at the output hundred of a thousand times as compared with the input. Another one is most generally used JK flip flop i.e. CD4027. These IC works in toggle mode and based on the JK flip flop master slave concept. This IC is used to alter the state when the signal is given to the any one of the input terminals and

Automatic Railway Gate Controller with Circuit Diagram

The main aim of this project is to operate and control the unmanned railway gate in the proper manner in order to avoid the accidents in the unmanned railway crossing. In a country like ours where there are many unmanned railway crossings, accidents are increasing day by day. These train accidents are due to the absence of human power in the railway. In order to overcome the accidents due to the above problem we have planned to design the project. Automatic Railway Gate Control System with High Speed Alerting System is an innovative circuit which automatically controls the operation of railway gates detecting the arrival and departure of trains at the gate. It has detectors at the far away distance on the railway track which allows us to know the arrival and departure of the train. These detectors are given to microcontroller which activates the motors which open/close the railway gate correspondingly. Another feature of this circuit is that it has an intellige

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