Directional speaker firmware

The board has no recovery button — a failed update still has to come back to life on its own.

Key points

  • There is no button for a human to press — automatic recovery is the entire safety net; fail here and the unit must be opened.
  • It switches only after the new firmware proves itself — the old image is not erased until then.
  • Ported from proven code in the earlier project — what already survived the field beats a rewrite.

Development record

Sector
Audio Hardware Manufacturing
Target chipset
ESP32 (ESP-ADF)
Status
Delivered
Scale
Undisclosed
Period
2026-07 ~ 2026-08
Stack
ESP32ESP-ADFOTA롤백

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