Show HN: Marelleo, an open-source story box I built for my kids using ESP32

Category: devtools

Tags: esp32, nfc, diy, audio, embedded, iot, hardware

Score: 6.8/10 (Innovation: 6, Technical: 7, Documentation: 8, Utility: 6)

Marelleo is an open-source DIY story box for children, built on an ESP32-S3 with NFC figurines that trigger audio playback from local storage or radio streams. It offers a privacy-respecting, subscription-free alternative to commercial devices like the Toniebox, with full documentation including PCB files, 3D-printable enclosure, and firmware.

Target audience: DIY enthusiasts, embedded developers, makers, parents

Repository: https://zebra.rodeo/en/blog/marelleo/ · C++ · NOASSERTION

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