The hardware

Breadboard / hand-wired

Assemble the parts on a breadboard with Dupont wires. No electronic board fabrication required.

What you need

Off-the-shelf parts, a breadboard, Dupont wires and a hand-made enclosure.

Enclosure

Build the enclosure yourself

• Off-the-shelf parts, easy to source
• Full wiring tutorial
• Build it yourself from the components in the BOM

To join the project right now.

Development board

An all-in-one dedicated board by HermitX. Ships with the NFC antenna, a 3 W speaker and an NTAG215 card.

What you need

A soldering iron, a few easy-to-find parts and a 3D printer.

Enclosure

3D enclosure to print

• ESP32-S3 N8R8 (8 MB PSRAM onboard, required by the firmware)
• PN5321 NFC reader + external antenna included
• MAX98357 I2S amp + 3 W speaker included
• 8× WS2812B LEDs + microSD reader (up to 32 GB)

Disclaimer: the Development board is a prototype product intended for prototyping and makers. It carries no regulatory certification and is provided "as is", without warranty of any kind.

For a clean, reproducible version.

The Open Music Box player

Our own dedicated electronic board, with quality components: audio jack connector and battery management.

What you need

Nothing to solder or print: the board arrives ready to use.

• Everything the Development board offers
• Superior sound quality
• Modular design, grow the MusicBox with your child
• Audio jack + built-in battery management
• Adaptive brightness

For the most polished version.