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FLY-Pi V3 Host

The FLY-Pi V3 is a standard-sized host computer with a form factor compatible with the Raspberry Pi, designed to provide a stable and powerful computing core for professional-grade 3D printing. It not only serves as a perfect replacement for the Raspberry Pi but also, with its deeply optimized Klipper system, industrial-grade interfaces, and flexible storage expansion options, helps you unlock a faster, more precise, and more reliable printing experience.

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Core Highlights​

  • Deep Optimization, Performance Leap : Equipped with the Allwinner H618 quad-core processor and pre-installed with the deeply customized FlyOS & Klipper firmware, it offers significant improvements in processing efficiency and printing performance compared to the native versions.
  • Flexible Storage, Configure as Needed : Features an onboard dedicated M2WE interface, supporting the FLY Custom M2WE Module (Wi-Fi/eMMC), providing you with a high-speed system boot option.
  • Ready-to-Use, Complete Ecosystem : The system comes pre-configured with all essential plugins, eliminating complex debugging and significantly reducing the time from installation to the first print.
  • Industrial-Grade Design, Stable and Reliable : Offers wide-voltage power supply (12-24V), power-loss shutdown protection, and a dedicated SPI accelerometer interface, ensuring stable operation over long periods.
  • Rich Interfaces, Worry-Free Expansion : Multiple display outputs, multiple UARTs, and an RRF expansion interface meet various peripheral connection needs.
  • One-Click Updates, OTA Support : Supports one-click system updates, allowing you to easily obtain the latest features and security patches without re-flashing the system.

Purchase and Usage Notes​

Important: Regarding Storage

The FLY-Pi V3 does not come with any storage device (i.e., it does not include an M2WE module or a Micro SD card). You must configure at least one of the following storage media for the device to function:

  • Option 1 (Recommended): Purchase the FLY custom M2WE module for faster system response and higher reliability.
  • Option 2: Prepare your own Micro SD (TF) card, with a capacity between 16GB and 128GB.

Product Detailed Specifications​

1. Core System (SoC)​

  • CPU: Allwinner H618, Quad-core 64-bit Cortex-A53
  • GPU: Arm Mali-G31 MP2
  • RAM: 1GB DDR4

2. Storage & Expansion​

  • External Storage: Supports up to 128GB Micro SD card (TF card)
  • Onboard M2WE Expansion Interface: For connecting the official FLY M2WE module (Wi-Fi / eMMC).

3. Rich Interfaces​

  • Display Output:
    • Micro HDMI x 1
    • FPC-HDMI x 1
    • FPC-TFT x 1
    • (Supports one-cable connection for TFT screens and HDMI screens, offering more flexible deployment)
  • USB & Network:
    • USB 2.0 Ports x 4
    • 100M Ethernet Port (Eth) x 1
  • Industrial & Expansion Interfaces:
    • UART x 1 (can be used for external serial screens)
    • SPI Interface (ZH1.5-7P) x 1 (for connecting sensors like ADXL345 to enable resonance compensation and other functions)
    • RRF Expansion Interface x 1
    • RS232 x 2 (can connect to RS232 tool boards)

4. Power & Power Management​

  • Input Voltage: DC 12V-24V (via power terminal) or 5V/2A (via Type-C port)
  • 5V Fan Interface: Provides a constant 5V power output (Note: This interface does not support PWM speed control)
  • Power-Loss Protection Features:
    • Supports Power-Loss Recovery and Safe Power-Loss Shutdown.
    Configuration Note

    These features require configuration within the system to be enabled; they are disabled by default.

5. System & Software​

  • Operating System: FlyOS-FAST (a lightweight system optimized for 3D printing)
  • Core Firmware: Deeply Optimized Klipper Firmware & Native RRF Support
    • Optimization Details: We have performed deep low-level optimization and adaptation based on native Klipper, resulting in significant improvements in command processing efficiency, motion planning, and calculation performance compared to the original version, delivering an ultimate printing speed and precision.
  • Pre-installed Software (Ready-to-Use):
    • Core Components: Klipper, Moonraker
    • Web Interface: Mainsail, Fluidd (optional, Fluidd by default)
    • Touchscreen Support: Klipper-Screen (disabled by default)
    • Camera Support: Crowsnest (disabled by default)
    • Advanced Feature Plugins: Essential plugins like Input Shaping, Resonance Compensation are pre-installed (numpy is pre-installed, no extra configuration needed)

Important Notes​

Interface Conflict Warning

The TFT screen and the SPI accelerometer interface cannot be used simultaneously!

  • Physical Conflict: The TFT screen (via the FPC-TFT interface), the SPI accelerometer interface (ZH1.5-7P), and the RRF expansion interface share the same set of SPI resources at the hardware level.
  • Consequence: If connected simultaneously, it will cause abnormal screen display and severely inaccurate accelerometer measurement data.
  • Solution: Please ensure only one of these is connected during use.
M2WE Interface Warning

Private Protocol, Strictly Prohibit Connecting Non-FLY Devices!

  • The onboard M2WE expansion interface uses a FLY private protocol, with custom physical and electrical specifications.
  • It only supports connecting the officially provided FLY M2WE module (for expanding Wi-Fi or eMMC storage functionality).
  • Absolutely do not connect any standard or unofficial M.2 devices, as this will inevitably cause permanent hardware damage to the mainboard.
Regarding Wi-Fi Functionality

The FLY-Pi V3 does not have onboard Wi-Fi.

If you need Wi-Fi, you have two options:

  1. Recommended Solution: Purchase and use the FLY official M2WE Wi-Fi module.
  2. Alternative Solution: Use a generic USB Wi-Fi module, but ensure it supports Linux systems and is driver-free to guarantee compatibility.
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