v2.0

v2.0 - 2026-01-26

Hightlights

• Switched MCU module to ESP32-C3-12F.
• Added USB-C port for programming.

Changes

• Replaced module ESP-12 (ESP8266) with module ESP32-C3-12F (ESP32-C3).
• Added USB-C.
• Added 3.3 V linear regulator for powering the MCU through the USB only.
• PCB layout adjustments.

Compatibility notes

• Older enclosures (chassis and top plate) from v1.y are not compatible with the new PCB.
• UART header remains available, but the auto-programming circuit is removed.

Upgrade impact

• Firmware must target ESP32-C3.
• Devices can be programmed directly over USB-C.

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Status: Verified working.
The fabricated board from this release is fully functional. Minor issues may exist but do not affect operation.

📝 Recommended for fabrication.

v1.0: Initial release

The fabricated board from release v1.0 works; it has some minor issues: releaselog.

❕ Obsolete.

v0.1-fab

Private release. Snapshot of the first fabrication run of the board.

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