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TBD Open Board
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.. raw:: html

   <img src="../_static/assets/tbd-open-board-placeholder.svg" alt="Abstract illustration of the TBD Open Board: an ESP32-P4 with generic blocks for audio, MIDI, storage, USB and an expansion header. Not the real layout." style="max-width: 100%; width: 100%; border-radius: 6px;">

The **TBD Open Board** is an open ESP32-P4 audio baseboard for the TBD firmware,
without a second microcontroller. It is made for makers who build their own
instrument or interface around the TBD audio engine.

.. admonition:: Status

   In design. The hardware files will be published later.


Features
========

- **Audio and MIDI** --- audio in and out, and MIDI
- **Storage and USB** --- microSD storage and USB connectivity
- **Expansion header** --- connect your own controls and interface

The board is made for the TBD firmware (see :doc:`Get Started </get_started/index>`). Looking for a
ready-made instrument? See the :doc:`TBD-16 <10_tbd16>`.