BIGTREETECH OCTOPUS V1.1 32bit Control Board

Product Description

The BIGTREETECH Octopus V1.1 is a high-performance 32-bit control board designed for advanced and demanding 3D printer builds. Equipped with a powerful ARM Cortex-M4 processor running at 180 MHz, it offers exceptional speed, precision, and stability for modern printers.
With support for up to eight stepper drivers, multiple fans, heaters, sensors, and expansion modules, the Octopus V1.1 is ideal for CoreXY systems, multi-extruder setups, Voron builds, and custom printers that require maximum flexibility.
It is fully compatible with Marlin and Klipper firmware, making it a favorite among enthusiasts who want smooth motion, silent operation, and advanced features.

Features

• 32-bit ARM Cortex-M4 MCU (STM32F446ZET6) @ 180 MHz

• Supports up to 8 stepper drivers (STEP/DIR, UART, or SPI modes)

• Multiple fan outputs: 6 × PWM + 2 × always-on

• Selectable fan voltage (5V / 12V / 24V)

• Dual Z-axis support + auto-leveling sensor ports (BLTouch, inductive, etc.)

• Filament run-out detection input

• CAN bus, USB-C, microSD card slot

• RGB LED support (Neopixel / WS2812)

• Wide compatibility with many drivers: A4988, DRV8825, TMC2208, TMC2209, TMC5160

• Works with Marlin, Klipper, OctoPrint, Raspberry Pi

• Excellent for high-end builds such as Voron, custom CoreXY, and multi-tool printers

Specifications

• Microcontroller: STM32F446ZET6 (ARM Cortex-M4)

• Clock Speed: 180 MHz

• Stepper Outputs: 8 (expandable to 9)

• Fan Outputs: 6 × PWM + 2 × always-on

• Heater Outputs: Hotend + heated bed + auxiliary heaters

• Voltage Input: 24V recommended

• Connectivity: USB-C, CAN bus, UART, SPI, end-stops, probes

• Compatible Firmware: Marlin, Klipper

• Dimensions: Standard Octopus form factor for easy mounting

Applications

• High-performance CoreXY printers

• Voron builds (2.4, Trident, Switchwire)

• Multi-extruder or tool-changer systems

• Custom 3D printers with multiple fans and sensors

• Klipper-based fast printing setups

• Projects needing many motor outputs or expansion options