MP3 module with remote control and Bluetooth, WAV + APE + MP3

This MP3 module with remote control is designed to play MP3, APE and WAV audio files. The device has a built-in Bluetooth module and a digital FM tuner. The MP3 module is designed to create audio systems or improve audio complexes that are not capable of playing MP3 files (APE and WAV).

The textual information of the device is displayed on a bright seven-segment display.

There are 4 control buttons on the MP3 player board. Button assignments:

VOL-: volume down (switch audio files)
PLAY/PAUSE: pauses or plays audio files (in FM mode, changes the frequency of the signal)
VOL+: increase volume (switch sound files)
MODE: selects the music playback mode

When using the USB (TF) mode, the volume level is changed by long pressing the VOL- and VOL + buttons, and to switch the sound file, you need to briefly press them. The PLAY/PAUSE button in this mode simply stops or resumes playback. In FM mode, this button has different properties: when pressed briefly, it starts scanning the range to a station with good reception, and when held for a long time, playback resumes or audio signals are stopped.

With the help of TF, USB and AUX connectors, external media of sound files are connected. The AUX jack is a serial input for connecting an analog signal source using a 3.5 mm mini jack. On the board of the device there are pins for connecting an external antenna, which serves as an amplifier for the FM receiver.

This MP3 player has 3 modes of operation:

FM: Receives FM radio stations
Bluetooth: plays sound files via Bluetooth protocol
USB, TF: plays audio files stored on a USB stick or memory card

When the FM mode is activated, the device automatically starts searching for an operating frequency in the range from 88 to 108 MHz.

The MP3 player comes with a remote control (remote control), which allows you to control the device at a distance of 1 to 10 m. The infrared sensor located near the LCD display receives the remote control signals. The remote control must be powered by a CR2032 battery. There are 21 function keys on the remote control. Control buttons assignments:

ON/OFF: turns the device on or off
MODE: selects the music playback mode
MUTE: turns off (on) the sound
PLAY/PAUSE: pause or play sound files
BACK: returns the previous sound file
NEXT: plays the next audio file
EQ: selects the equalizer mode (ROCK, JAZZ, Classic, NORMAL, BASS, POP)
VOL-: volume down
VOL+ increases the volume
U/SD/AUX: Change media type
0 - 9: control buttons

The device is powered by an external DC power source in the range from 5 to 12 V. A voltage regulator of 5 V is installed at the input of the player.

MP3 module kit consists of: MP3 player, remote control, and wires with connectors for connection.

When connecting the power, be extremely careful! The module does not have reverse polarity protection!