AUDIO LEVEL METER ELECTRONIC DIAGRAM
It consists of only few components. IC LM3915 converts the audio analog voltage and display it to the LED. Here is the schematic :
Parts list :
- Resistor R1 : 1k2
- Resistor variable R2 : 10k
- IC : LM3915
- LED indicator LED1-LED10 : LED 5mm
- 12V power supply
