8*8 64LED Audio Level Indicator LED Music Spectrum Analyzer MP4 Amplifier kit For Sale

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8*8 64LED Audio Level Indicator LED Music Spectrum Analyzer MP4 Amplifier kit:
$8.99

product description：

1) Using WD1088S dedicated driver chip, support 8*8 (8 rows and 8 columns) LED display;

2) Provide design solutions to provide manufacturers with supporting chips (20SOP, 20DIP);

3) Designed for audio equipment, widely used in various audio output equipment;

4) Professional audio decoding, showing the frequency and amplitude of the audio signal;

5) Three display modes (flash, slow flash 1 and slow flash 2) to provide a stunning visual experience;

6) Three sensitivity modes (high, medium and low sensitivity) are selected to adapt to different power supply environments;

7) Provide production self-test mode;

8) Audio automatic gain adjustment, always showing the best visual effect

9) Super bright LED display

the instructions for use：

Connect the USB power to the WD1001D display (which can be the power of the charger or computer) and use the audio signal through the audio cable (this unit\'s accessory).

There are three settings for this module via the “Function Buttons” on the back:

1) Change the display mode (press and hold the button for less than 1.5 seconds)

This button is in the \"ping-pong\" working mode. Pressing the button once (pressing the button for less than 1.5 seconds) will change the display mode once.

Slow flash type 1 (display shows \"S1\"): In this mode, the display refresh rate is the slowest and the visual feel is good.

Flash mode (display display \"F\"): In this mode, the display refresh rate is fast and dynamic.

Slow flash 2 (display shows \"S2\"): In this mode, the display refresh rate is moderate.

The chip reset works in the \"slow flash 2\" mode, and the mode is changed by pressing the button once.

2) Change the signal detection sensitivity mode (press and hold the button for more than 1.5 seconds)

The button is in the \"ping-pong\" mode of operation. Pressing the button once (pressing the button for more than 1.5 seconds) changes the sensitivity of the signal detection.

Lower sensitivity (display shows \"L\"): In this mode, it is possible to filter weaker interfering signals and is insensitive to the clutter response of the power supply.

Higher sensitivity (display shows \"H\"): In this mode, a weaker audio signal can be detected, sensitive to the clutter of the power supply.

Moderate sensitivity (display display \"M\"): In this mode, the signal detection is sensitive and the power supply clutter is not high.

The chip reset works in the “moderate sensitivity” mode, and the sensitivity mode is changed by pressing and pressing the button once.

3) Enter test mode

Press and hold the button first, power on, the chip automatically enters the test mode. In test mode, you can test the brightness of the LED and the quality of the line.

Power supply voltage: 3-5V.

Working current: working at 5V, less than 3mA when static display is not displayed, less than 30mA when the display is displayed.

Board size: If the ripple of the USB power supply of the computer is large, the LED may be displayed when there is no audio signal. In this case, set the module to a lower sensitivity (display display \"L\") operating mode, or replace the power supply with a small ripple.

Display: If you need a faster display refresh rate, you can switch the display to flash, slow flash mode, and get different display effects immediately.

Shipping list:

1x audio cable
1x USB power cable
1x audio board
4x copper column
4x screw

About Payment

We accept PayPal only, all major credit cards are accepted through secure payment processor PayPal.

Payment must be received in 7 business days of sale closing.

Please leave note for your special request (e.g. Colors or Size) in when you pay the order.

Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched.

About Shipping

Item will be shipped within one business day after full payment is received.

Except The United States and Russia we shipped use Epack, We ship worldwide with standard shipping by Hong Kong Air mail. This international order may take longer to arrive, Normally the shipment to worldwide is used to take 35 to 40 business days, exclude Sat & Sun..

Delivery time depends on destination and other factors, if you still not received it in normal days. Please don’t worry, I hope you can give me a message before you do any action.

About Returns

If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please contact us and double check the return address before you return it.

Original and return shipping fee will not be refunded or reimbursed under all circumstances. You must agree and acknowledge this term if you offer for this item. Therefore, please do not complain about having to ship back at your own expense.

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