General information for the Fly-Super8Pro H723
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Super 8 Pro Front and Back
Super 8 Pro Front and Back

This page covers any general information for the Fly-Super8Pro H723 boards.
It is currently available through AliExpress.

There are two versions of the Fly-Super8Pro. One has an STM32H743 MCU and the other has an STM32H723. This is the information for the STM32H723.

  • 32-bit ARM Cortex-M7 Kernel 550MHz, STM32H723ZGT6 Chip

  • Supported Firmware: Marlin 2.0, Reprap, and Klipper

  • Drivers supported: A4988, LV8729, DRV8225, TMC2208, 2209,5160, & 5160HV.

  • Drive mode support: TMC: UART, & SPI

  • Support for 8 independent motor drives, 5 extruders, and 10 PWM fans

  • All drivers sockets support up to 48 volts.

  • Supported Displays: serial touch screen, 12864 LCD, 2004 LCD , FLY 4.3, & 7.0 V1

  • Supports automatic bed leveling sensor: BLTouch

  • Optional limit switch power supply: 5V, 12V, & 24V

  • On-board WiFi supported with Reprap firmware.

  • PWM Fan MOS boards can be directly replaced in case of damage.

Driver Jumpers

The jumpers should be installed as below. “Common Interpolation” should be used for standalone drivers. “SPI mode Interpolation” is supported for TMC5160 drivers. “UART mode Interpolation” should be used when using smart drivers (i.e. TMC2208, TMC2209, TMC2225 and TMC2226)

Fly-Super 8 Driver Jumpers
Fly-Super 8 Driver Jumper Locations

Driver Diag Pin

The driver diag pin is used for sensorless homing and stall detection.
The Fly-Super8Pro H723 does not have a way of disabling the diag pin as it is designed to be used with Fly-2209 drivers which have a switch on the underside of them for disabling the diag pin. Set the dip switch to ‘ON’ to enable the diag pin. If you plan on using endstops rather than sensorless homing and do not have the Fly-2209 drivers, you need to bend or remove the diag pin.

Fan Mosfets

The Fly-Super8Pro H723 features 5 replacable fan mosfet modules (VS3622e) that control 10 fan outputs.

If the MOSFET is damaged by an accidental short circuit it can easily be replaced. New Fly-MOS modules can be purchased from the Mellow store

The Fan-MOS design allows it to be inserted in either orientation.

Fly-Super 8 Fan Mosfet
Fly-Super 8 Fan Mosfet

Fan Voltage

The fan voltage can be set using jumpers to either 5v, 12v and Vin.
Set them as shown below.

Fly-Super 8 Fan Voltage
Fly-Super 8 Fan Voltage

Maximum Input voltage

Board/Bed Power

The main board and heated bed power inputs can handle voltage up to 30v.

Driver Power

Fly-Super8Pro H723 version 1.3, both of the driver power inputs 0-2 and 3-7 can handle voltage up to 62v.

Fly-Super 8 Driver Voltage
Fly-Super 8 Driver Voltage