2x50W 디지털 블루투스 5.0 파워 오디오 앰프 모듈
(Digital Bluetooth Power Amplifier (50W*2))
개요
- 본 제품은 2x50W 디지털 블루투스5.0 파워 오디오 앰프 모듈입니다.
- 블루투스 5.0을 지원하며, TF 카드 및 U-Disk를 지원합니다.
- 50W의 듀얼 채널 출력을 가지고 있으며, playback mode, pause, switch music, control volume을 위한 기능 버튼을 가지고 있습니다.
특징
- Power Supply: 12-24V
- Output Power: 50W*2
- Channel: left/right channel(stereo)
- Bluetooth Version: 5.0
- Bluetooth Transmission Distance: 15m (without any obstacle)
문서
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Operating Instruction
Connect the board with a speaker, power it on, then the red LED lights up. The green LED flashes quickly, and then the board enters Bluetooth mode; Turn on the Bluetooth of your Raspberry Pi or mobile phone, the"VHM-302" will be searched, click to connect it (password 1234). It connects or disconnects successfully with a prompt tone. The Bluetooth will be reconnected automatically when the module is powered on next time. It will play the prompt tone when a U-disk or TF card is plugged in. The input mode can be switched by the MODE button.
MODE: switch mode. When there is no TF-card or U-disk plugged in, the module enters Bluetooth Mode by default. The mode can be switched when plugging in SD-card or U-disk.
RUN: start playing
STOP: pause
NEXT: short-press to skip to the next song
VOL+: long-press to increase the volume
BACK: short-press to skip to the previous song
VOL-: long-press to decrease volume
EQ: adjust sound effects
Note: The board will output adequate power only when the audio input and power source voltage/current are sufficient. The higher the power supply voltage, the larger the output power. Besides that, speaker impedance also changes the amplifier board power output. Please note that in the case of enough voltage and current, the larger the speaker impedance in ohms, the smaller the output power.