BIGTREETECH OCTOPUS User Manual

Produced by BIGTREETECH
Page 3 of 25
1 INTRODUCTION TO BIGTREETECH OCTOPUS
V1.0
The BIGTREETECH Octopus V1.0 is a powerful and feature rich, 3D printer motherboard
that supports up to 8 stepper drivers with 9 stepper driver outputs in total. It is designed and
manufactured by the 3D printing team of Shenzhen Bigtree Technology Co.,Ltd
1.1 OCTOPUS MOTHERBOARD FEATURES
1. Uses a 32-bit ARM Cortex-M4 series STM32F446ZET6 main control chip with a core
frequency of 180MHz.
2. Supports running Klipper and Marlin.
3. Interfaces with a Raspberry Pi using emulated serial over USB or direct UART to any
of the serial ports on the board.
4. Supports up to 4 hotend heaters.
5. Provides separate power inputs for motors, bed heating and logic/fans/hotends.
6. Supports 12V or 24V supply inputs with built in 12V, 5V and 3.3V regulators to
provide rails for peripheral use.

BIGTREETECH OCTOPUS Specifications

General

Flash Memory	512 KB
RAM	128 KB
Input Voltage	12V-24V DC
Operating Voltage	3.3V
Clock Speed	180 MHz
PC Communication Interface	USB
Supported File Format	G-code
Ethernet	No
Wi-Fi	No
Bluetooth	No
Processor	ARM Cortex-M4 STM32F446ZET6
Stepper Driver Support	Up to 8 stepper drivers
Connectivity	USB, UART, SPI, I2C
Expansion Interface	UART, SPI, I2C
Temperature Sensor Interface	Supports thermistors
Digital I/O Pins	Available, quantity varies depending on configuration
Analog Input Pins	Available, quantity varies depending on configuration