Panda Control Vent firmware and its redesigned embedded control interface shown beside a Bambu Lab printer fitted with Panda Vent hardware
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FreePanda Vent Firmware

Panda Control Vent

Community firmware for smarter Panda Vent control.

Panda Control Vent is free, open-source firmware for BIGTREETECH Panda Vent hardware. It keeps the proven vent controls, adds Bambu printer-state behavior tested on an X1 Carbon, introduces a cleaner embedded interface, and unlocks independent chamber lighting when the front LED boards are relocated inside the printer.

What It Adds

  • Bambu printer-state integration tested on a Bambu Lab X1 Carbon
  • Automatic vent control using commanded bed temperature and cooldown thresholds
  • Detailed idle, preparing, printing, paused, complete, and error lighting states
  • Independent vent and chamber-light colors, effects, and brightness controls
  • Optional chamber lighting using the Panda Vent front LED boards relocated inside the printer
  • A redesigned embedded overview, automation, lighting, and setup interface
  • Immediate local Bambu discovery and connection without a cloud account
  • Configuration-preserving OTA upgrades from stock Panda Vent, DragonVent, or Panda Control Vent

How It Works

The firmware installs through the Panda Vent web interface as an OTA update. It preserves compatible existing network and printer settings, so users upgrading from DragonVent or an earlier Panda Control Vent build should not need to configure everything again.

For the optional chamber-light modification, pixels 0–10 remain the vent lighting and pixels 11–15 become the chamber lighting on each side. The original front LED boards are physically relocated; no GPIO reassignment or electrical rewiring is required.

Bambu behavior has been physically tested with an X1 Carbon. Klipper and Moonraker support is inherited from DragonVent and has not been independently hardware-tested by Extrusion Therapy.

Downloads

Download the OTA firmware image and upload it through the device's firmware-update page.

Panda Vent

OTA firmware — current stable release

File: Panda-Control-Vent-OTA.bin

Extrusion Therapy logo

Support Future Tools

Panda Control Vent is free and open source. If it improves your setup, you can support future Extrusion Therapy workshop tools.

Panda Control Vent is an unofficial community firmware project from Extrusion Therapy, based on the open-source DragonVent project by Justin Hayes. It is not affiliated with or endorsed by BIGTREETECH, BIQU, or Bambu Lab.