# Led audio indicator kit LM3915

> DIY VU meter kit based on the LM3915, showing audio signal level via 10 LEDs that light up progressively according to volume. Comes with unsoldered components for assembly, operates at 9-12VDC, with a 62 x 57mm PCB and a socket for the IC. LEDs may be round or rectangular depending on the batch. The IC has an orientation marking that must match the PCB.

- Page: https://sigmanortec.ro/en/led-audio-indicator-kit-lm3915
- Price: 17.45 RON
- Availability: In stock; 1-2 zile
- Reference: 33075 · EAN: 5941113661427
- Category: Mechatronics and IoT > The Kit > DIY Electronics Kits
- Package (shipping data): 0.015 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 02:21 (Europe/Bucharest)

## Description

DIY LM3915 level meter kit, ideal for displaying the audio signal level through 10 LEDs that light up progressively depending on the volume. Comes with solderless components for easy assembly, operates at 9-12VDC, includes 62 x 57mm PCB and socket for integrated, LEDs can be round or rectangular depending on the batch.
DIY audio indicator kit with LM3915 LEDs (VU meter), is a kit with un-soldered components.
Once the assembly is completed and powered, the LEDs will light up according to the sound level detected from the audio source.
Important: The components (except resistors) have a specific orientation. When soldering the LM3915 IC, pay attention to the semicircle on the socket and the IC (it must match the drawing on the PCB).
Specifications:
Power supply voltage: 9-12VDC
PCB dimensions: 62 x 57mm
LEDs: May vary depending on the batch (rectangular or round)