FLY-C5 Mainboard Introduction

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Important: Regarding Storage

The FLY-C5 does not come with any storage device pre-installed (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 properly:

• Option 1 (Recommended): Purchase a 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 Features

• 32-bit ARM Cortex-M4, 550MHz, STM32H723VGT6 chip
• Supports TMC driver SPI, UART, and STEP/DIR operating modes
• DIAG function pins do not occupy endstop slots; infinite homing can be configured
• Digital control fans support 24V, 12V, and 5V without additional buck modules
• Supports automatic power-off shutdown and power-loss recovery (automatic power-off shutdown is enabled by default)
• Pre-installed with USB Klipper firmware
• Multi-channel power management; short circuits on ports, endstops, drivers, etc., do not affect host operation
• Reserved 5V RGB interface
• Supports one-cable connection for TFT and HDMI screens
• System pre-installed with klipper, moonraker, mainsail, fulidd, klipper-screen, Crowsnest, resonance compensation plugin numpy; no need to change sources, easy to get started (requires purchasing a TF card or M2WE)

Product Specifications

Host

• CPU: Allwinner H618, Quad-core 64-bit Cortex-A53
• GPU: Arm Mali-G31
• RAM: 1GB DDR4
• ROM: Supports up to 128GB SDCARD
• Peripherals:
  • TFT x1
  • USB 2.0 x2
  • Micro HDMI x1
  • Ethernet port (Eth) x1 (100M)
  • FPC-HDMI x1
  • UART x1
• Interface: Onboard M.2, expandable for WIFI, eMMC, etc. (private protocol; do not connect non-FLY dedicated M.2 devices)
• Support: One-cable connection for TFT screens and HDMI screens via FPC
• System Pre-installed: klipper, moonraker, mainsail, fulidd, klipper-screen, Crowsnest, resonance compensation plugin numpy; no need to change sources, easy to get started (requires purchasing a TF card or M2WE)

Controller

• MCU: STM32H723VGT6
• Firmware: KLIPPER / RRF / Marlin
• Power Supply: Supports 12-24V DC input, eliminating the need for buck modules
• Heated Bed Port Max Output Current: 15A
• Heater Cartridge Port Max Output Current: 6A
• Fan Port Max Output Current: 1A
• Driver Operating Modes: SPI, UART, STEP/DIR
• Supported Drivers: TMC5160Pro, TMC5160, TMC2209, TMC2225, TMC2226, TMC2208, TMC2130, A4988, etc.
• Expansion Interfaces: BLTouch (Servos, Probe), RGB x1, UART x1, CAN x1
• Fans: 4x Two-wire digitally controlled fans (supports selectable 24V, 12V, 5V)
• Temperature Sensors: 3x NTC 100K
• Supported Structures: Cartesian, Delta, Kossel, Ultimaker, CoreXY, etc.

Important Notes

Output Port	Max Current at 24V Power	Max Current at 12V Power
Heated Bed Port	15A	7.5A
Heater Port	6A	3A
Fan Port	1A	0.5A