Introduction of IR music transmitter and receiver


  Introduction of IR music.ppt (Size: 1.54 MB / Downloads: 1)

Abstract

The infrared radiations are transmitted and received by ir leds and photo transistor respectively
The project emphases the way by which music is generated and driven by ir rays
The main idea behind this project is to generate musical notes by infrared radiations
The circuit uses popular melody generator IC UM66.
It can be used in wireless music systems.

Infrared communication

Now a days everything in this world is getting wireless.infrared rays transmission is one of the most important ways of wireless communication.
According to the infrared communication ,for a distance of about 1m from communication object , The communication can be performed without performing connection via a cable.
The infrared communication is preferably applied to small apparatuses such as a note type personal computer and a portable inform .

Introduction:

Communication distance can be improved by using ir LEDs.
Using thisThe receiver can be placed at a maximum distance of 1 meter from the transmitter with out any considerable noise interferences.
circuit audio musical notes can be generated and can be heard up to a distance of 10 meters.
The range of communication can be increased to about 250 meters by using far ir leds

IC UM66 MELODY GENERATOR

This is simplest ever musical calling bell .
It uses the musical 3 pin IC UM66 and a popularly known transistor BC548b.
Here the musical IC UM66 generates the music when it receives supply and drives a small speaker through a class c amplifier using silicon transistor BC548b.
UM66 series are cmos Ics designed for using in calling bell ,phone and toys.
The device has very low power consumption.
The melody will be available at pin3 of UM66 and here it is amplified by using Q1 to drive t he speaker.

conclusion

Ir ray communication is very easy to understand and simple to implement.
It finds various applications in short distance field of communications.
in future there is a scope of building virtual environment using the principles of ir music transmission and reception.