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  • Taidacent LM3914 Audio Level Meter LED Sound Level Indicator Circuit Voice Control Level Light DIY Audio Spectrum Analyzer Kit
  • Taidacent LM3914 Audio Level Meter LED Sound Level Indicator Circuit Voice Control Level Light DIY Audio Spectrum Analyzer Kit
  • Taidacent LM3914 Audio Level Meter LED Sound Level Indicator Circuit Voice Control Level Light DIY Audio Spectrum Analyzer Kit
  • Taidacent LM3914 Audio Level Meter LED Sound Level Indicator Circuit Voice Control Level Light DIY Audio Spectrum Analyzer Kit
  • Taidacent LM3914 Audio Level Meter LED Sound Level Indicator Circuit Voice Control Level Light DIY Audio Spectrum Analyzer Kit
  • Taidacent LM3914 Audio Level Meter LED Sound Level Indicator Circuit Voice Control Level Light DIY Audio Spectrum Analyzer Kit
Taidacent LM3914 Audio Level Meter LED Sound Level Indicator Circuit Voice Control Level Light DIY Audio Spectrum Analyzer Kit

Taidacent LM3914 Audio Level Meter LED Sound Level Indicator Circuit Voice Control Level Light DIY Audio Spectrum Analyzer Kit

  • 50 - 499 Pieces
    $0.95
  • >= 500 Pieces
    $0.26

Customization:

Customized packaging（Min.Order: 2 pieces）
View product details

Taidacent LM3914 Audio Level Meter LED Sound Level Indicator Circuit Voice Control Level Light DIY Audio Spectrum Analyzer Kit

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Audio Level Visualization: Designed to build an LED-based audio spectrum analyzer or sound level indicator, converting audio input into real-time visual feedback via LEDs.
  • DIY Electronics Assembly: Enables users to solder components onto the PCB, creating customizable circuits using resistors, capacitors, ICs (e.g., LM3914), and LEDs.

Key features

  • 1. Advanced SMD Component Technology

    • With surface-mount device (SMD) components, you can achieve compact and durable circuit assembly, offering superior reliability compared to traditional through-hole components*.

  • 2. Real-Time Audio-Visual Feedback via LM3914 IC

    • With the integrated LM3914 IC, you can visualize sound levels in real time through dynamic LED displays, enabling customizable light patterns for music or voice input*.

  • 3. High-Speed Audio Signal Response

    • With optimized circuit design, you can achieve rapid audio-to-light conversion (up to 20% faster than basic LED kits*), ensuring precise synchronization with sound waves.

  • 4. Versatile Scenario Adaptability

    • With modular components and a customizable PCB, you can build projects for home entertainment (e.g., audio spectrum displays) or educational use (e.g., electronics learning kits), adapting to both hobbyist and professional needs*.

  • 5. Compliance with Safety Standards

    • With adherence to industry safety protocols, you can ensure safe operation (e.g., RoHS compliance for reduced hazardous materials*), subject to final confirmation by the manufacturer.

Product details

Taidacent LM3914 Audio Level Meter LED Sound Level Indicator Circuit Voice Control Level Light DIY Audio Spectrum Analyzer Kit

The Taidacent LM3914 Audio Level Meter LED Sound Level Indicator Kit is a versatile DIY optoelectronics project designed for building audio spectrum analyzers. Featuring SMD-mounted components and a customizable PCB, this kit combines educational value with practical applications for hobbyists, educators, and professionals.

Technical specifications

FeatureSpecificationBenefit
Mounting TypeSurface-Mount Device (SMD)Enables compact circuit design and high-density assembly.
LED TypeHigh-brightness multi-color LEDsProvides clear visual feedback for audio levels.
PCB DesignPre-drilled grid with component layoutSimplifies soldering and supports modular upgrades.
Power OptionsUSB 2.0 & 3.5mm audio jack integrationCompatible with standard devices for easy setup.
Component VarietyResistors, capacitors, transistors, ICsSupports complex circuit configurations and customization.

Customization guide

Adjustable parameters include:

  • LED color/quantity: Swap LEDs to match aesthetic or functional needs (e.g., RGB for spectrum visualization).
  • Circuit layout: Modify the PCB trace paths to optimize signal flow or add additional components.
  • Power input: Integrate alternative connectors (e.g., USB-C) for faster charging or wireless power options.

Get inspired

Turn your kit into a dynamic audio visualizer for music festivals, home studios, or educational demonstrations. With its modular design, you can also repurpose components to build custom sensors, control panels, or IoT devices.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
LED Density10 LEDs20 LEDs30+ LEDs
IC PerformanceLM3914 standardLM3914HV (high-voltage)LM3914HV + DSP chip
Soldering ComplexityBeginner-friendlyModerateExpert-level
DurabilityStandard SMDMoisture-resistantIndustrial-grade

Supplier's note

  1. Technical Breakthroughs:

    • The Pro Model’s DSP chip integration enables real-time audio analysis, 30% faster than traditional analog-only designs.
    • All models use SMD components, reducing physical footprint by 40% compared to through-hole alternatives.
    • The Advanced Model’s high-voltage ICs support a 50% wider input range for industrial audio applications.

  2. Version Selection Guide:

    • Beginners/Students: Opt for the Base Model to master soldering and basic audio visualization.
    • Hobbyists/Creators: Choose the Advanced Model for projects requiring vivid color transitions or robust power handling.
    • Professionals: The Pro Model delivers industrial-grade durability and DSP-driven precision, ideal for live sound engineering or R&D prototyping.

With the Pro Model’s industrial-grade SMD components, you can build devices withstand harsh environments. Pair its high-voltage ICs with moisture-resistant PCBs to ensure reliability in outdoor festivals or manufacturing settings.

Frequently asked questions

  • Which Taidacent LM3914 kit suits home studio audio monitoring?

  • How to clean SMD components on the LED sound level indicator PCB?

  • SMD vs through-hole: Which is better for compact DIY electronics projects?

  • Can I customize LED patterns on the audio spectrum analyzer?

  • Is the LM3914 IC in this kit RoHS-compliant?

  • What projects can I build with this audio level meter kit?

  • How do I solder SMD components onto the PCB?

  • Can the kit use USB power for portable setups?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
LED ConfigurationReal-time audio visualizationIndustry Standard: 8-LED bar graph (5mm through-hole, 2000mcd)
Our Base: 10-LED bar graph (SMD 3mm, 10,000mcd▲)
Our Advanced: 16-LED RGB array (SMD 3mm, 10,000mcd▲▲)		Base: Compact design (0.5x size of through-hole); Advanced: Color-coded frequency bands
(▲: 50% brighter than standard)		Base: Limited LED count for basic projects; Advanced: Requires advanced soldering skill
IC CompatibilityCircuit customizationIndustry Standard: Generic LED drivers (e.g., LM358)
Our Base: LM3914专用LED驱动芯片
Our Advanced: LM3914 + microcontroller (Arduino-compatible)▲		Base: Dedicated audio visualization support; Advanced: Programmable threshold control
(▲: Adds 20+ customization options)		Base: Limited flexibility; Advanced: Requires coding knowledge
Mounting TechnologyCompact project assemblyIndustry Standard: Through-hole components (e.g., 5mm LEDs)
Our Base: SMD components (0805 package▲)
Our Advanced: High-density SMD (0603 package▲▲)		Base: 40% smaller footprint than standard; Advanced: 20% lighter and thinner
(▲: Meets IPC-A-610 Class 2 standards)		Base: Requires fine-tip soldering tools; Advanced: Steeper learning curve
Power Supply OptionsPortable device integrationIndustry Standard: External 9V battery only
Our Base: USB-powered (5V/500mA▲) + 3.5mm audio jack
Our Advanced: USB + CR2032 battery backup▲▲		Base: Plug-and-play with PCs/mobile devices; Advanced: 24-hour runtime in low-power mode
(▲▲: 50% longer battery life)		Base: No battery option for standalone use; Advanced: Slightly higher cost
Component VarietyEducational projectsIndustry Standard: 10+ basic components
Our Base: 50+ components (resistors, capacitors, transistors▲)
Our Advanced: 80+ components + specialty parts (e.g., potentiometers▲▲)		Base: Covers 90% of DIY audio projects; Advanced: Supports advanced filters and effects
(▲▲: Includes 15+ passive components)		Base: Limited for complex circuits; Advanced: Overwhelming for beginners
Soldering ComplexitySkill developmentIndustry Standard: Pre-soldered PCB
Our Base: Fully customizable SMD PCB▲
Our Advanced: Mixed SMD/through-hole PCB▲▲		Base: Teaches precision soldering; Advanced: Combines techniques for advanced learners
(▲▲: 30% more solder joints)		Base: Requires magnification tools; Advanced: Risk of component damage for novices

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