2x5W 블루투스 4.2 오디오 리시버 -앰프
(Bluetooth 4.2 Audio Receiver Board-with an Amplifier (2x5W))
개요
- 본 제품은 2x5W 블루투스 4.2 오디오 리시버 -앰프입니다.
- 자동으로 연결하는 기능을 가지고 있으며, micr USB 나 3.7V 리튬 배터리로 전원을 공급할 수 있습니다.
- 두개의 스피커와 연결하면 스테레오 블루투스 스피커를 만들 수 있습니다. 혹은 USB로 컴퓨터에 연결하면 사운드카드로도 사용이 가능합니다.
특징
- Power Supply: 3.7V-5V
- Bluetooth Version: 4.2
- Transmission Distance: 15m(Visible)
- Audio Decoding: WAV, APE, FLAC, MP3
- Match Speaker: 2-8Ω, 3-5W (4Ω5W speaker is recommended )
- Dimension: 20*45mm/0.79*1.77"
문서
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Operating Instruction
After the power is turned on, the blue indicator flashes quickly, and then the module enters the Bluetooth mode; After playing the "Beep", it goes into the pairing mode, waiting for pairing; Turn on the Bluetooth of a phone, "MH-M38"(module Bluetooth name) will be searched and displayed, click "MH-M38" to connect to the board. It connects successfully with a Beep. When the indicator is always on, you can play your music on the phone, and the indicator keeps slowly blinking when playing music.
Scenario
Note
1. Since there is no lithium battery protection circuit on the decoder board, it is recommended to use this module with a Lipo Charger board.
2. Pay attention to the electrostatic protection. Since the Bluetooth chip is very sensitive to static electricity, you must discharge the static electricity on your hand to avoid causing damage to the chip when touching it with a bare hand.
3. Bluetooth antenna signal is easy to be influenced by high-frequency or strong electromagnetic signal, so please try to keep the module away from radio transmitting devices, and this board should not be placed close to any metal objects.
The module already has dual 5W power amplifier circuits, so please do not connect the external power amplifier with this board. The negative poles of two power amplifier circuits should not be connected together, otherwise, it will destroy the power amplifier chip