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LED Vu Meter, DC 5V-12V Vu Meter Valve Lapping Tool Meter Module Voice Control Reverse Connection 10cm X 3cm Melody Light for Test Sound

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$5.17

$ 2 .99 $2.99

In Stock
  • LED will Flash with Music: The louder the sound, the more the LED will light up from bottom to top. As the sound fluctuates, the LED will flashing with the music.
  • Power Supply: DC 5V-12V is Available, the Board Comes with a Microusb Socket, You Can Use the Corresponding Mobile Phone Charging Cable to Plug in the Power Supply, and 2 Pad Ports Are Reserved for Users to Their Own Wires.
  • Easy to Use: The VU meter is a voice‑activated sensor, so there is no need to connect audio, just power on the product, it will flash when there is a sound. Size: Length 10cm / 3.9in x width 3cm / 1.2in.
  • the Circuit: Equipped with anti‑reverse connection diode, which can effectively prevent the circuit from being burnt due to the reverse polarity of the power supply. DC voltage between 5V and 12V can be powered, with reverse connection .
  • Comparator Circuit Design: Using an independent comparator circuit, although the circuit is slightly more complicated, the structure and principle are easier to understand.


Product Description

DC 5V-12V Vu Meter LED Vu Vu Meter, Valve Lapping ToolMeter Module Voice Control Reverse Connection
DC 5V-12V Vu Meter LED Vu Vu Meter, Valve Lapping ToolMeter Module Voice Control Reverse Connection

  • LED will Flash with Music: The louder the sound, the more the LED will light up from bottom to top. As the sound fluctuates, the LED will flashing with the music.
  • Power Supply: DC 5V-12V is Available, the Board Comes with a Microusb Socket, You Can Use the Corresponding Mobile Phone Charging Cable to Plug in the Power Supply, and 2 Pad Ports Are Reserved for Users to Their Own Wires.
  • Easy to Use: The VU meter is a voice‑activated sensor, so there is no need to connect audio, just power on the product, it will flash when there is a sound. Size: Length 10cm / 3.9in x width 3cm / 1.2in.

DC 5V-12V Vu Meter LED Vu Vu Meter, Valve Lapping ToolMeter Module Voice Control Reverse Connection

DC 5V-12V Vu Meter LED Vu Vu Meter, Valve Lapping ToolMeter Module Voice Control Reverse Connection

DC 5V-12V Vu Meter LED Vu Vu Meter, Valve Lapping ToolMeter Module Voice Control Reverse Connection

DC 5V-12V Vu Meter LED Vu Vu Meter, Valve Lapping ToolMeter Module Voice Control Reverse Connection

DC 5V-12V Vu Meter LED Vu Vu Meter, Valve Lapping ToolMeter Module Voice Control Reverse Connection

DC 5V-12V Vu Meter LED Vu Vu Meter, Valve Lapping ToolMeter Module Voice Control Reverse Connection


1. DC voltage between 5V and 12V can be powered, with reverse connection protection.


2. The VU meter is a voice‑activated sensor, so there is no need to connect audio, just power on the product, it will flash when there is a sound.


3. The louder the sound, the more the LED will light up from bottom to top. As the sound fluctuates, the LED will flashing with the music.


4. Using an independent comparator circuit, although the circuit is slightly more complicated, the structure and principle are easier to understand.

5. Equipped with anti‑reverse connection protection diode, which can effectively prevent the circuit from being burnt due to the reverse polarity of the power supply.


Spec:


Item Type: VU Meter


Material: Plastic


Size: Length 10cm / 3.9in x width 3cm / 1.2in;


Lamp Beads: 5mm Round Head Fog-like Led, Uniform and Not Dazzling (multi-color Optional);

Power Supply: DC 5V-12V is Available, the Board Comes with a Microusb Socket, You Can Use the Corresponding Mobile Phone Charging Cable to Plug in the Power Supply, and 2 Pad Ports Are Reserved for Users to Their Own Wires;


How to Use:


Regarding input: The board comes with a microphone, no need to connect an audio , it can sense and receive an external sound source, and control the blinking of the LED lamp beads. The disadvantage is that the sensitivity is not as good as the line input, and it is easily affected by other external sounds.If you need line input, this step is about the audio (for example, the headphone power amplifier of a mobile phone or computer cannot be connected to the output of the power amplifier or the speaker), you can remove the microphone, and the is introduced directly from the microphone. If the lights are on, adjust the potentiometer counterclockwise to decrease) This connection is recommended.


Package List:


1 x VU Meter


Notice:


The sensitivity is adjustable, the on‑board adjustable


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