I made a tiny device for automatically recording digital pianos
Hey HN! A few years ago, I left my cushy big tech job to make hardware. And made the device I always wanted - an automatic piano recorder! I usually play piano improvisationally, and manually hitting record never meshed well with that. But there are always moments I wish I recorded, and now they are! Hopefully it scratches a similar itch for some of you as well! A few of the tech details: * built on an esp32-s3 * custom injection molded enclosure * BLE comms, sd card storage, DS1302 RTC * android & ios apps with Flutter * Shadertoy vfx support for video sharing - Chip
In plain words
The Jamcorder is a small hardware device that automatically records digital piano performances to an SD card, designed for pianists who play improvisationally and want to capture moments without manually starting recording. It connects via Bluetooth to iOS and Android apps and includes built-in real-time clock and storage capabilities. The device is built around an ESP32-S3 microprocessor in a custom-molded enclosure and offers video sharing features with visual effects.
written from the facts on this page · September 2026
Pricing, as stated on its site
Paid from $185/mo — One-time purchase of $185 USD for the Jamcorder device with included storage for up to 25,000 hours of recordings.
checked September 2026 · prices change
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I wasn't quite sure if this qualified as "Show HN" given you can't really download it and try it out. However, dang said[0]: > If it's hardware or something that's not so easy to try out over the internet, find a different way to show how it actually works—a video, for example, or a detailed post with photos. Hopefully I did that? Additionally, I've put code and a detailed guide for the netboot computer management setup on GitHub: https://github.com/kentonv/lanparty Anyway, if this shouldn't have been Show HN, I apologize! [0]…
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