16-Segment MCU-Controlled Dual-Channel VU Meter LED Audio Level Indicator

Take your audio setup to the next level with this 16-Segment MCU-Controlled Dual-Channel VU Meter LED Audio Level Indicator. Whether you're building a custom amplifier, hi-fi stereo system, or a retro-styled audio rack, this compact board delivers real-time, visually striking volume unit feedback across two independent channels — all managed by an onboard microcontroller for precise, stable readings.

With its bright LED display and adjustable sensitivity, this VU meter is as functional as it is eye-catching. It's a favourite among electronics enthusiasts, hobbyists, and DIY audio builders who want a professional-grade audio indicator without the complexity.

Key Features

16-Segment Display: Smooth, high-resolution level metering across 16 bright LED segments per channel for accurate audio visualization.
Dual-Channel Output: Independent left and right channel metering for stereo audio systems.
MCU-Controlled: Onboard microcontroller ensures stable, responsive, and precise signal tracking.
Adjustable Sensitivity: Fine-tune the response to match your audio source and system output level.
Green LED Backlight: Classic, vibrant green illumination for clear visibility — also available in four-color option.
Compact SMD Package: Space-saving surface-mount design ideal for integration into custom enclosures and DIY builds.
Wide Operating Temperature: Reliable performance from -40°C to +85°C, suitable for various environments.
Customizable Quantity: Available in single (1 pc), 5-pack, or 10-pack options to suit your project scale.

Specifications

Type: VU Meter / LED Audio Level Indicator
Channels: Dual (Left + Right)
Segments per Channel: 16
Supply Voltage: 8V – 12V DC
Maximum Current: Approximately 70mA
Operating Temperature: -40°C to +85°C
Package Type: SMD
Application: Computer, Hi-Fi Audio, Amplifier, DIY Electronics
Color Options: Green / Four Colors
Condition: New

Perfect For

DIY amplifier and hi-fi audio builds
Custom audio rack panels and enclosures
Electronics hobbyists and makers
Retro-inspired audio equipment projects
Computer audio monitoring setups

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Frequently Asked Questions

Q: What is a 16-Segment MCU-Controlled Dual-Channel VU Meter LED Audio Indicator?

A: It is a compact electronic module featuring two independent LED bar-graph displays, each with 16 segments, that visually represent the volume or signal level of a stereo audio source in real time. An onboard microcontroller (MCU) manages signal processing and display updates for accurate and responsive metering.

Q: What voltage does this dual-channel VU meter LED indicator require?

A: This VU meter operates on a supply voltage of 8V to 12V DC and draws a maximum current of approximately 70mA, making it compatible with most standard benchtop power supplies and DIY audio power rails.

Q: Can I adjust the sensitivity of the LED audio level indicator?

A: Yes. The module features adjustable sensitivity, allowing you to calibrate the display response to match your specific audio source output level — whether from a preamplifier, mixer, computer sound card, or other line-level signal.

Q: Is this VU meter suitable for a DIY amplifier or hi-fi audio build?

A: Absolutely. Its compact SMD design, wide operating temperature range (-40°C to +85°C), and dual-channel layout make it an excellent choice for custom amplifiers, hi-fi stereo systems, audio rack panels, and other DIY electronics projects.

Q: What quantity options are available for this LED VU meter?

A: You can order a single unit (1 pc), a 5-pack, or a 10-pack to suit your project requirements, whether you are prototyping or building multiple units at once.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.