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FLY-Pi Host Board

  • We are excited to release the new FLY-π board. This board can replace a Raspberry Pi as a host board, featuring 1GB of onboard DDR3 memory.
  • This host board can run Klipper and RRF firmware, and can even run the Klipper screen when using an SHT tool board.
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Key Highlights​

  • Powerful Core, Deep Optimization: Equipped with the Allwinner H5 quad-core processor and preloaded with deeply customized FlyOS & Klipper firmware, delivering significantly improved instruction processing and motion planning performance compared to stock systems.
  • Dual Storage Options, Flexible Choices: Offers onboard M2WE interface (for FLY custom modules) and a standard Micro SD card slot, allowing users to choose between high-speed eMMC or cost-effective and flexible SD card solutions as needed.
  • Out-of-the-Box Experience, Complete Ecosystem: The system comes with all necessary plugins pre-installed (such as environments required for input shaping and resonance compensation), greatly reducing debugging time and enabling rapid printing deployment.
  • Industrial-Grade Design and Power Supply: Supports 12-24V wide voltage input, features a dedicated SPI accelerometer interface, ensuring long-term stable and reliable operation.
  • Rich Interfaces, Full Expansion: Provides multiple display outputs (HDMI, TFT), 4 USB 2.0 ports, Ethernet port, and CAN bus interface to meet various peripheral device connection needs.
  • Easy Maintenance with OTA Support: Supports one-click over-the-air (OTA) system updates, allowing users to obtain the latest features and security patches without reflashing the system.

Purchase and Usage Notes​

Important: About Storage

The FLY-Pi does not come with any storage device from the factory. You must prepare at least one of the following storage media yourself for the device to function properly:

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

Product Detailed Specifications​

1. Core System​

  • CPU: Allwinner H5, Quad-core 64-bit Cortex-A53
  • GPU: Arm Mali-G31 MP2
  • RAM: 1GB DDR3

2. Storage and Expansion​

  • External Storage: Supports Micro SD card (TF card), with capacities from 16GB to 128GB supported
  • Onboard Expansion: Dedicated M2WE interface for connecting the official FLY M2WE module (providing Wi-Fi or eMMC storage functionality).

3. Interface Overview​

  • Display Outputs:
    • Micro HDMI x 1
    • FPC-TFT x 1
  • USB and Networking:
    • USB 2.0 ports x 4
    • 100M Ethernet port (Eth) x 1
  • Industrial and Expansion Interfaces:
    • Dedicated SPI interface (ZH1.5-6P) x 1: Used to connect sensors such as the ADXL345 for resonance compensation.
    • CAN HAT interface x 1

4. Power Management​

  • Input Voltage: DC 12V-24V
  • Fan Connector: 5V fan connector x 1
  • Power Loss Protection:
    • Requires the use of a KPPM module.
    • Supports power-loss print resumption and safe shutdown on power failure.
    Configuration Notes

    This feature must be manually enabled in the system configuration and is disabled by default from the factory.

5. System and Software​

  • Operating System: FlyOS-FAST (a lightweight system optimized for 3D printing)
  • Core Firmware: Deeply optimized Klipper firmware & native RRF support
    • Optimization Notes: We have performed low-level optimizations and adaptations to Klipper, significantly improving instruction processing and motion planning performance compared to the original version.
  • Pre-installed Software:
    • Core: Klipper, Moonraker
    • Web Interfaces: Mainsail, Fluidd (Fluidd is default)
    • Feature Plugins: Input shaping, resonance compensation, and other essential plugins and environments are pre-installed.
    • Optional Features: Klipper-Screen (touchscreen) and Crowsnest (camera) support are integrated but disabled by default.

Important Notes​

Interface Conflict Warning

The TFT screen, SPI accelerometer interface, and RRF expansion interface cannot be used simultaneously!

  • Hardware Conflict: The above interfaces physically share the same set of SPI resources.
  • Consequences: Connecting them simultaneously will result in abnormal screen display and severe accelerometer data errors.
  • Solution: Connect and use only one of these interfaces at a time.
M2WE Interface Warning

Proprietary protocol - connecting non-FLY devices is strictly prohibited!

  • The onboard M2WE interface uses a FLY proprietary custom protocol, with both physical and electrical specifications being non-standard.
  • Only connect the officially provided FLY M2WE module (Wi-Fi / eMMC).
  • Strictly prohibited from connecting any standard or third-party M.2 devices, as this will cause permanent hardware damage to the board.
About Wi-Fi Functionality

The FLY-Pi has no onboard Wi-Fi.

For wireless connectivity, please choose:

  1. Recommended Solution: Use the official FLY M2WE Wi-Fi module.
  2. Alternative Solution: Use a driver-free universal USB Wi-Fi module, ensuring it is compatible with Linux systems.
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