Note

IT IS KITS ONLY. That is to say, all items are not welded on the pcb board.  Buyers have to weld them on the pcb board by themselves.

 

ONLY for professionals.  Kits assembled is not a very complex work but if you are not professional, item might get broken.  We cannot offer the warranty for incorrect welding and assembling.

Computer communication function, on-board serial TTL output.

 

 

  1. Product Description

Using the basic principles of the Red rumor sound kit is the sound caused by infrared (laser) vibration, and then hit the infrared vibration signal is received at the receiver circuit infrared receiver diode, and the signal is demodulated to achieve sound reduction. Transmission distance can reach one meter can be used to make short-range wireless speakers.

 

  1. Electrical Characteristics

Infrared transmitter

Operating voltage: 12V

PCB size: 19 * 25mm

 

Infrared receiving end

Operating voltage: 4 ~ 12V

Driver Speaker: 0.5W-10W Speaker 1

PCB size: 17 * 39mm

 

3.Circuit Theory

1). The transmitting end: the headset port, the audio signal input through the transistor Fat S8050, an infrared transmitter to drive the tube, and the audio signal is transmitted in the form of infrared.

2). The receiving end: the infrared receiving tube for receiving the infrared signal transmitter, converted into an audio signal through the LM386 audio amplifier chip, and the audio output signal can be amplified

 

 

 

 

 

 

 

1

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Payment must be received in 5 business days of auction closing.
Please leave note for your special request (e.g. Colors or Size) in PayPal 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.
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2. Orders will be processed instantly and dispatched within 1-3 business days except hoilday, so we do NOT accept any email/message note after you place orders.
3. All package need to wait 30 days,Please take care it.Less than 30 days,we can't take a refund.
  • All package need to wait 30 days(US only need 7-10 days),Please take care it.Less than 30 days,we can't take a refund.
  • 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 keep in touch with us and double check the return address before you return it.
  • If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item.
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On Feb 20, 2023 at 19:31:21 PST, seller added the following information:

DataCaciques