MP3 Bluetooth Radio USB AUX Player + Remote Control
MP3, WMA, WAV file player module that is able to download data from a micro SD card or USB connector. The module is equipped with an output to the amplifier, and basic buttons for changing tracks, volume, repeat, etc. Built-in Bluetooth allows you to use this module as a hands-free set. Thanks to Bluetooth, we can play music from the phone. The module has a built-in FM radio and LED display. Power supply from 7 to 12V. The set also includes an IR remote control. The module is perfect for creating your project of a portable speaker, radio or MP3 player. You only need an amplifier and speakers to run.
Module: MP3, WMA / WAV player
Display: YES, 1.5"
sound source: micro SD card up to 16GB, USB connector, JACK 3.5mm line input, Bluetooth
Radio: YES, FM | frequency range: 87.5 ~ 108MHz
Power supply: 6-12V (voltage higher than 12V may damage the module!)
Voice information: YES, about the selected input source type - NOTE Chinese is turned on by default, while holding down the "M" button it changes to English, the message "E ON" - English / "C ON" - Chinese appears
Prev / Vol-: previous track / volume down
Next / Vol +: next track / volume up
Play / Pause: Play / Pause
Mode: Change source
Module width 107 mm
Module depth: 28 mm
Module height: 25 mm
Our expert advises:
The main module of the device in the form of one chip contains many modules, including Bluetooth and FM, which are sensitive to any electrical interference and voltage spikes. The manufacturer has installed a voltage stabilizer that lowers the input voltage to 5VDC, which powers the system. Due to the high frequency, the stabilizer produces interference, so when connected to the amplifier (powered from the same voltage source), you can hear a clear noise and the operation of the Bluetooth module while searching for devices and playing music with BT. Additionally, the power supply from one voltage source of the Bluetooth module and the amplifier causes noise. If you have encountered similar problems, solder the electrolytic capacitor to the 5V and GND output of the stabilizer with a capacity of at least 2000uF. Further, you can use one of the following methods:
I. The best solution, when the module and the amplifier are to be powered from one voltage source, is to use a DC-DC Step-Down or Step-Up converter, depending on the configuration, and power the module with 7V.
II. Isolation of tensions. The BT module is powered by an independent power source, and the amplifier by another, which gives us a separate ground on the circuits, which can reduce interference, but we recommend the first solution.