ESP32 FDM Bridge

Turn a $15 ESP32-S3 board into a wireless 3D printer server with camera streaming and AI failure detection.

Features

MJPEG camera stream (800x600 @ 5 FPS)
USB Host serial bridge to any Marlin or Klipper printer
Obico cloud integration with AI failure detection
OctoPrint compatibility via RFC 2217
Web dashboard with temperature, progress, and terminal
SD card file management and host printing
WiFi AP fallback with captive portal for easy setup

Install Firmware

Connect your Freenove ESP32-S3-WROOM via the right USB-C port (UART) and click the button below.

Requirements: Chrome or Edge browser (Web Serial API). The left USB-C port is for printer connection, use the right one for flashing.

Tip: Hold the BOOT (download) button before clicking Install and keep holding it until the upload progress appears. Release it once flashing starts.

After Flashing

The board starts in AP mode — connect to the ESP32FDM-XXXX WiFi network
A captive portal opens automatically — enter your WiFi credentials
The board reboots and connects to your network — open its IP in a browser
Connect the left USB-C port to your 3D printer

GitHub Repository · Documentation