BIGTREETECH Octopus V1.1 / Octopus Pro (F446 / H723) 3D Printer Motherboard | 8 Stepper Drivers

BIGTREETECH Octopus V1.1 / Octopus Pro (F446 / H723) 3D Printer Motherboard | 8 Stepper Drivers

• BIGTREETECH Octopus V1.1 and BIGTREETECH Octopus Pro (F446/H723) are high-performance 3D printer motherboards designed for complex, expansion-heavy builds.
• With 8 stepper driver sockets, these boards can control up to 8 axes, making them ideal in India for multi-motor systems, multi-colour printing, tool changers, and multi-purpose machines that swap between 3D printing and add-ons like laser engraving or laser cutting modules.
• Both boards focus on expandability and modern connectivity. They support key interfaces such as CAN Bus, SPI, I2C, and a Raspberry Pi interface for controller-host integration, plus USB‑C for convenient connection and updates.
• You also get multiple fan headers (controllable and always-on), RGB LED support, BLTouch and other auto bed leveling compatibility, and 4 cartridge heater outputs—useful for multi-hotend systems or specialized heaters in tool-changing setups.
•  It also adds onboard MAX31865, enabling cleaner integration of PT100/PT1000 temperature sensors via weld-free switching—useful for higher temperature or more precise thermal measurement setups. This makes the Octopus Pro a strong pick for high-power and high-precision builds.

Specifications 

• MCU options: STM32F446ZET6 / STM32H723ZE
• Frequency: 180MHz / 168MHz
• Flash: 512KB / 1MB
• SD protocol: SDIO
• CAN Bus: RJ11 CANBus interface
• Fuses: 3
• Limit switch + filament sensor inputs: 6 + 2
• HV drive: up to MAX8
• Motor input voltage: 12–60V (each optional)
• Drive input level: 5V
• Temperature inputs: NTC100K ×5 + onboard MAX31865 (PT100/PT1000 via weld-free switching)
• Protection: 5V short-circuit alarm (LED + buzzer)

Features

• 8 stepper driver support for advanced motion systems
• Multiple expansion interfaces: CAN/SPI/I2C + Raspberry Pi integration
• USB‑C connectivity for easier updates and communication
• 4 heater outputs and extensive fan control
• RGB, Wi‑Fi (ESP8266), and BLTouch compatibility
• Added power/safety and MAX31865 support on Octopus Pro

Applications

• Multi-colour printing and tool changer machines
• High-axis-count printers (multi-motor Z, complex kinematics)
• Multi-purpose machines with laser engraving/cutting modules
• Builds needing expansion via CAN Bus, SPI, I2C, and Raspberry Pi
• High-power builds needing higher motor voltage (especially Octopus Pro)

Package Include

• 1 piece of octopus motherboard V1.1 / Octopus Pro ( with F446 or H723 Chip ).