RGB LED VU METER USE KA2284IC OR BC547 TRANSISTORS

How to make amazing lighting effect RGB LED vu meter:-

Project Introduction:-

This is a very nice project and very easy to make, we need six electronic components to make it.

Components list :-

1. ka2284 ic

KA2284 ic is audio level indicator ic.

2. RG 3PIN common anode LED (RGB LED) 

3.Transistor

 Q1,Q2,Q3,Q4 -BC-547 Transistors.

4. Potentiometer

This variable resistor(Pot1-10k) used for controlling audio signal and adjust a perfect scale of Vu meter.

5. Resistors

R1, 25 OHMS used for all RGB LED over voltage protection.R2,R3,R4,R5, 10k ohms resistor , this are pull up resistor and connected to the ka2284 ic VCC pin9. R6,R7,R8,R9,1K ohms resistor connect with base pin of transistors. R10 is 10k ohms connect ka2284IC pin7 to pin5(gnd), this resistor used for discharging of C1 capacitor. And all resistor are 1/4 watt.

6. Capacitors

C1 capacitor is 10uf/63v and C2 4.7uf/63v 

Parts image:-

 

10k Potentiometer

25ohm,10k,1k,1/4watt
Resistors

Capacitor
            10uf,4.7uf63volt

KA2284 IC

Common anode Red, Green Led

You can use any one transistors bc547,bc548.

Circuit diagram:-

RGB VU METER CIRCUIT DIAGRAM