Thursday, 13 September 2012

MUSIC BY LIGHT

The circuit given here generates music in tune with the light. One IC 555 is used as an astable multivibrator although, we can also use two transistor in place of this IC as shown in figure. In both the circuits one LDR is used. As light falls on LDR of both circuits, current begins to flow. The of this current depends upon the intensity of light falling on the LDR. IC 555 produces audio frequency according to the flow of current and we can hear panoramic music.


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