TITLE:
LED RHYTHM LIGHT
SUBMITTED TO:
SOHAIL MUZAMIL,MEHREEN
GROUP MEMBERS:
RAYAAN KHAN(FA22-BCE-076)
MUHAMMAD ZAIN FEROZ(FA22-BCE-067)
ARUJ KHALID(FA22-BCE-063)
SYED MUHAMMAD USMAN(FA22-BCE-068)
MUHAMMAD NAJAM UL SAQIB(FA22-BCE-075)
DATE OF SUBMISSION:
16-DEC-2022
INTRODUCTION:
In this, we are going to show you how to make Music Rhythm Operated Dancing Light using
LEDs & Transistors. You might have seen the Disco Lights or DJ lights or light during a
function that turns ON and OFF according to the beats or Rhythm of the music. This Music
Rhythm Operated Dancing Light circuit is based on transistor BC547. This circuit is very simple
and easy to build, it just requires a few basic components.
These lights turn ON & OFF according to the length and pitch of music beats or rhythm.
Basically these are designed to pick the high-intensity sound like Bass sound. So these lights
follow the high pitch beats in music like drum beats and Turn ON and OFF according to music
pattern.
COMPONENTS:
1-TRANSISTOR(BC-547)
2-LED
3-CAPACITOR-100NF 0R 0.1Uf
4-RESISTOR
5-MICROPHONE
6-SWITCH ON/OFF
7-BATTERY(9V0IL)
8-BREAD BOARD
9-WIRES
CRICUIT DIAGRAM:
WORKING PRINCIPAL:
In this Simple Music Rhythm Operated Dancing Light, mic. picks up the sound
signals & converts them into a voltage signal. The voltage developed is directly
proportional to the quantity of sound falling on the mic. These voltage signals are
further fed into High Pass RC Filter R1 & C1 for eliminating the noise from the
sound. Further, an NPN transistor Q1 BC547 works as a signal amplifier.
Then finally these music signals are given to the array of six transistors grounded
across with 22 Ω resistor. The transistor in this array works as an amplifier, and
glows the four LEDs according to the sound pattern. We can also add more LEDs
& transistors to make it following more longer pattern.
The sensitivity of mic. can be increased or decreased by changing the value of R2
& C1.
HARDWARE DIAGRAM:
Significance of using Transistor:
Transistor in this array works as amplifier and glows the four LEDs according to the sound
pattern. This generates a very interesting sequence of dancing LEDs which follows the beats as
per their intensity or pitch. We can also add more LEDs with transistor to make it cooler
transistor:
Conclusion:
From above discussion we came to know that LED dancing light is an astonishing
application of physics and electronics. This Flashing or Dancing LED circuit is
used for decoration purpose or as an indicator.
REFRENCES:
how2electronics.com
circuitdigest.com
youtube.com
slideshareppt.com