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Flash Panda Breath Gateway

Install or update the Panda Breath Gateway firmware directly from your browser. The gateway is a small ESP32-C3 SuperMini module that bridges the Panda Breath chamber heater on your LAN to SpoolTracker so you can control it from /bambu.

Panda Breath Gateway (ESP32-C3 SuperMini)
ESP32-C3 SuperMini — RISC-V variant. No camera, no scale; this device only bridges WebSocket commands to a Panda Breath chamber heater on your LAN.

Don't have the board yet? Get the ESP32-C3 SuperMini on Amazon (paid link).

Before you begin

  1. Plug the ESP32-C3 SuperMini into your computer with USB-C. The ESP32-C3 has a built-in USB Serial/JTAG peripheral (native USB), so you do not need to hold a BOOT button — the flasher resets the chip into download mode automatically.
  2. Make sure no other program (Arduino IDE, serial monitor) is using the port.
  3. Click Install Firmware below and select the serial port — look for "USB JTAG/serial debug unit".
  4. The flash takes ~30 seconds. When complete, the device reboots and either joins your saved Wi-Fi (if previously provisioned) or starts an open AP named PandaGW-Setup-XXXX for first-time setup.

Your browser does not support Web Serial. Use Chrome, Edge, or Opera on desktop.

Web Serial access was denied. Make sure you're not in an incognito window and that no other page is using the serial port.

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After installation — first-time setup

  • Device reboots into open AP PandaGW-Setup-XXXX (last 4 hex of MAC).
  • Connect from a phone/laptop. Captive portal pops to http://192.168.4.1 automatically on iOS / Android.
  • Tap your Wi-Fi from the scanned list, enter the password and your SpoolTracker API key, hit Save. The gateway reboots and joins your LAN.
  • Claim the device at /devices and pair it with a Panda Breath under /bambu.
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