Funduino MP3 Player Kit - Offline, SD Card, Accompanying Materials

Product overview

• Kit for a portable MP3 player without an Internet connection
• Storage of audio files on an SD card or integrated memory
• Easy operation via physical buttons or sensors without a display
• Power supply via rechargeable battery with several hours of operating time
• 3.5 mm audio output or integrated speaker
• No Internet dependency, offline playback
• Assembly requires soldering and basic electronics knowledge

Product description

The MP3 player is supplied as a kit and operates entirely offline. Once assembled, it plays audio files that have previously been transferred to an SD card. The device is operated using switches or push buttons on its surface, without the need for a display or Internet connection.

The core of the device is an MP3 decoder module that decodes compressed audio files and forwards them to the amplifier. The rechargeable battery supplies all components with power; operating time depends on capacity and consumption. Since no online functions are required, network connectivity is completely unnecessary.

Typical applications include audiobooks for children that play stories independently, or voice announcements in model railway layouts and other projects. Another area is providing audio in smaller rooms without dependence on Wi-Fi. The device can also serve as a basis for educational projects, allowing users to follow the steps from circuit planning and soldering through to commissioning.

For assembly, a soldering iron, flux, and solder are required if they are not already included in the set. The audio source file is written to the SD card using a computer; common file types are MP3, WAV, or OGG, depending on the decoder type. The size of the integrated or expandable memory determines the number of files that can be stored. If the battery is damaged, it may need to be purchased separately.

Safety notice

Lithium batteries must not be overcharged or operated in extreme heat. The device is intended exclusively for building prototypes and for testing and development purposes, and is not intended for installation in the household electrical circuit. If you are unsure about safe wiring or commissioning, consult a qualified electrician before starting.

Scope of delivery

• 1* Funduino UNO R3
• 1* 170P breadboard
• 1* 8-ohm, 0.5 W speaker
• 1* RFID KIT
• 1* Mini MP3 Player, MP3-TF-16P
• 1* SD memory card
• 3* 2-pin push buttons 12x12x6
• 1* set of 40 breadboard wires, 20 cm (m/m)
• 1* set of 40 breadboard wires, 20 cm (f/m)
• 1* set of 100 resistors (4x 1000 ohms required)