Mellow FLY ESP32 WiFi Board for SKR 2 – RRF 1.7M/S Antenna

Mellow FLY SKR2 ESP32 WiFi Antenna Board – Wireless Control for Your 3D Printer

Upgrade your SKR 2 motherboard to full wireless network control with the Mellow FLY ESP32 WiFi Antenna Board. Powered by the capable ESP32 chip, this module enables seamless wireless communication between your 3D printer and your network, reaching RRF network transmission speeds of up to 1.7 MB/s. Modify firmware, monitor print jobs, and adjust settings directly through a browser-based web interface — no USB cable required.

The included external antenna significantly boosts signal reception, making it ideal for installation inside metal enclosures where standard onboard antennas struggle. Simply connect the module to your SKR 2 control board, flash the RepRap firmware (RRF), and you're ready to print wirelessly.

Made in Mainland China.

Key Features

• ESP32-based WiFi module — reliable, high-speed wireless connectivity
• Up to 1.7 MB/s RRF network transmission speed
• RepRap Firmware (RRF) compatible — web-based firmware modification
• External antenna included — enhanced signal inside metal printer enclosures
• Direct motherboard connection — no extra adapters needed
• Compatible with SKR 2 32-bit control board
• No assembly required — ready to connect out of the box

Specifications

Package Includes

• 1 × FLY SKR2 WiFi Antenna ESP32 Board Set

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Frequently Asked Questions

Q: Is the Mellow FLY ESP32 WiFi Board compatible with boards other than the SKR 2?

A: The new ESP32-based FLY WiFi board is specifically designed and tested for compatibility with the SKR 2 32-bit control board. It is not guaranteed to work with other boards such as the Octopus without additional configuration. Always verify firmware compatibility before purchasing.

Q: Do I need to be a programmer to set up the WiFi module?

A: No advanced programming knowledge is required. The board connects directly to the SKR 2 motherboard, and firmware can be updated and configured through a web browser interface using RepRap Firmware (RRF). Step-by-step tutorials are provided by the Mellow team to guide you through setup.

Q: Why does this board include an external antenna?

A: The external antenna is designed to improve WiFi signal strength, especially when the 3D printer is installed inside a metal enclosure. Metal housings can significantly reduce wireless signal quality; the external antenna allows you to route it outside the case for a stronger, more stable connection.

Q: What is the maximum wireless data transfer speed supported?

A: The Mellow FLY ESP32 WiFi board supports RRF network transmission speeds of up to 1.7 MB/s, enabling fast and responsive wireless control and firmware updates for your 3D printer.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.