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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 an Allwinner H618 quad-core processor and pre-installed with deeply customized FlyOS & Klipper firmware, offering significant improvements in processing efficiency and printing performance compared to the native versions.
  • Flexible Storage, Configure on Demand: 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 greatly reducing the time from installation to the first print.
  • Industrial-Grade Design, Stable & Reliable: Offers 12-24V wide voltage input, power-loss shutdown protection, and a dedicated SPI accelerometer interface, ensuring stable operation during long print sessions.
  • 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 get 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-128GB.

Detailed Product Specifications​

1. Core System (SoC)​

  • CPU: Allwinner H618, 4-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, enabling 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, enabling resonance compensation and other functions)
    • RRF Expansion Interface x 1
    • RS232 x 2 (can connect to RS232 toolboards)

4. Power & Power Management​

  • Input Voltage: DC 12V-24V
  • 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-Off 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 Interfaces: 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

TFT Screen and 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 on the hardware level.
  • Consequence: If connected simultaneously, it will cause abnormal screen display and severely inaccurate accelerometer measurement data.
  • Solution: Ensure you connect only one of these at a time.
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 board.
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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