BIQU Panda Bifrost – MQTT Gateway for the Bambu Lab Ecosystem
BIQU Panda Bifrost V1.0 is an intelligent
MQTT gateway designed for
Bambu Lab 3D printers, which facilitates communication between the printer and multiple peripheral devices in the local network. It functions as a simple bridge between the printer and MQTT clients and is designed for easy commissioning within minutes.
Simply power the Panda Bifrost from USB, connect to Wi‑Fi, and pair with your Bambu Lab printer. It then allows you to connect up to 20 MQTT devices simultaneously.
Key Features of Panda Bifrost
- Simple MQTT Gateway for Bambu Lab
Serves as an MQTT gateway between the Bambu Lab printer and multiple peripheral devices in the network. Ideal for integrations, monitoring, and expanding printer capabilities.
- Power from Any USB Source
Can be powered from a USB‑A 5 V / 1 A port directly from the printer, computer, or USB charger. A USB‑A to USB‑C adapter is included, so you can easily connect it to various devices.
- Connect Up to 20 MQTT Devices
Within minutes, Panda Bifrost can connect and serve up to 20 clients simultaneously, which is ideal for more complex setups and multiple peripherals.
- Dedicated Firmware Interface
The device is equipped with a programming interface for DIY firmware flashing and future updates. Suitable for advanced users and makers who want to further modify the device.
- Optimization for the Bambu Lab Ecosystem
Designed for seamless operation with Bambu Lab printers (e.g., when using Panda Touch and other Panda peripherals).
Revision Log
- Version v1.00 (October 28, 2025)
- Initial product version BIQU Panda Bifrost V1.0
- Full integration with Bambu Lab printers as an MQTT gateway
- Support for connecting up to 20 MQTT devices
- Added dedicated interface for updates and DIY firmware
Hardware and Technical Core
- Main Control Unit: ESP32‑S3‑WROOM‑1‑N16R8
A modern powerful module with Wi‑Fi connectivity, suitable for network communication and MQTT applications.
- Power Supply: USB‑A 5 V / 1 A
The typical peak consumption of the device is 5 V / 0.1 A, so it has very low power requirements.
- Logic Level: 3.3 V
Standard logic voltage suitable for integration with other 3.3 V modules and peripherals.
Assembly – Printed Cover (Shell)
Panda Bifrost is designed to be installed in a
printed cover, which you can easily print on a 3D printer.
- Printing the Cover
- Recommended layer height: 0.15 mm
- No supports (the model is designed not to need them)
- Installing the PCB into the Bottom Part
- Insert the Panda Bifrost PCBA into the bottom part of the cover
- Ensure correct orientation of the board according to the cutouts and connectors
- Snapping on the Top Cover
- Place the top lid and align the "BQ" logo
- Push lightly until it fits and clicks – the cover is then closed
Initial Connection and Setup
- Power On and Hotspot
After connecting the power, the device creates a Wi‑Fi hotspot:
- Network name (SSID):
Panda_Bifrost_XXXXXXXXXXXX
- Default password:
987654321
- Connecting to the Hotspot
- Connect to this Wi‑Fi using a mobile phone or PC
- Opening the Web Interface
- In your browser, open the address:
http://192.168.254.1/
- Choose the interface language
- Select your Wi‑Fi network, enter the password, and click Connect
After successful connection, Panda Bifrost is available on the local network and you can proceed with pairing with the printer.
Binding a Bambu Lab Printer
- In the Panda Bifrost interface, click on Scan.
- Enter the printer access code.
- Click Connect to pair.
Once completed, the Bambu Lab printer is bound to Panda Bifrost and can communicate with other devices through it.
Binding Other Panda Devices (e.g., Panda Touch)
Once the printer is successfully bound, Panda Bifrost will start broadcasting the following identity on the local network:
- Device Name:
PandaBifrost
- Location:
xxx.xxx.xxx.xxx (IP address in LAN)
- USN:
B1098A316C65xxx
- DevConnect.bambu.com:
lan
- DevModel.bambu.com:
C12
- DevName.bambu.com:
PandaBifrost
- DevVersion.bambu.com:
01.00.00.00
To bind other Panda devices:
- In the Panda Bifrost web interface, click on Scan.
- Select "PandaBifrost" from the list.
- Enter the printer access code.
- Click Bind.
After this step, other Panda devices can be connected through Panda Bifrost to the Bambu Lab printer.
Limitations and Known Usage Restrictions
When using Panda Bifrost in combination with
Panda Touch and other devices, the following limitations apply:
- Cloud mode is not supported.
- It is not possible to view files on the SD card of the printer through the connected device.
- It is not possible to start print jobs from a USB flash drive via Panda Bifrost.
The maximum number of simultaneously connected clients (devices) is
up to 20.
Who is BIQU Panda Bifrost Ideal For
- Bambu Lab users who want to expand their ecosystem with more MQTT devices.
- Integration creators, developers, and DIY enthusiasts who want custom firmware and automation.
- Operators of multiple printers who need centralized communication and monitoring.
BIQU Panda Bifrost is a great choice if you are looking for a
simple but powerful MQTT gateway to connect your Bambu Lab printers with other smart devices in the local network.
Key Features
- MQTT gateway designed for Bambu Lab printers
- Power via USB‑A 5 V / 1 A, low consumption (~0.1 A peak)
- Connection of up to 20 MQTT devices simultaneously
- Built-in Wi‑Fi hotspot for initial setup (
Panda_Bifrost_XXXXXXXXXXXX)
- Clear web interface for setup and binding
- Programming interface for DIY firmware and future updates
- Printed cover: easy assembly, layer height 0.15 mm, no supports
- Limitations: no cloud mode with Panda Touch, no access to SD card and USB printing via the gateway
