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BIGTREETECH OCTOPUS - PRO User Manual

BIGTREETECH OCTOPUS - PRO
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BIGTREETECH
Produced by BIGTREETECH
OCTOPUS - PRO
USER GUIDE
October 18
2021
Version 01.02
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BIGTREETECH OCTOPUS - PRO Specifications

General IconGeneral
CoreARM Cortex-M7
USB InterfaceUSB 2.0
Driver SupportTMC5160, TMC2209
Communication InterfaceUART, SPI, I2C, CAN
FirmwareMarlin, Klipper
Power Input12V-24V
ADC Channels16
DAC Channels2
Dimensions100mm
Endstop Input8x
UART Ports8x

Summary

Document Change History

Introduction to BIGTREETECH Octopus-PRO V1.0

Octopus-PRO Motherboard Features

Details the key features of the Octopus-pro V1.0 motherboard, including processor, firmware support, and voltage selection.

Octopus-PRO Motherboard Parameters

Lists the physical and electrical specifications of the Octopus-pro motherboard, such as size, voltage ranges, and supported interfaces.

Motherboard Wiring

Power Wiring

Explains how to connect power supplies to the motherboard, including motor, bed, and logic power inputs and polarity.

Automatic Power Down Wiring

Describes the wiring procedure for the BIGTREETECH Relay V1.2 module for automatic power down functionality.

BL Touch Wiring

Illustrates how to correctly wire a BL Touch sensor to the motherboard for automatic bed leveling.

Power Loss Recovery Module Wiring

Details the connection process for the BIGTREETECH mini UPS for power loss recovery.

RGB LED Wiring

Provides instructions on connecting RGB LEDs to the motherboard, referencing silkscreen for pinout details.

Raspberry Pi Wiring

Explains methods for connecting a Raspberry Pi for printing, via USB-C, UART, or SPI.

Probe Port Wiring

Guides users on connecting bed probes to the dedicated port, including jumper settings for NPN/PNP probes.

Stepper Driver Operational Modes

Step/Dir Mode

Explains how to configure stepper drivers using Step/Dir mode and setting jumpers for microstepping.

UART Mode

Details the jumper configuration for operating stepper drivers in UART mode.

SPI Mode

Shows the jumper settings required to operate stepper drivers in SPI mode.

Motherboard Jumper Settings

Motor Power Selection Jumpers

Describes how to configure motor driver voltage using jumpers, allowing selection between motherboard and motor input voltage.

Fan and Proximity Switch Voltage Settings

Explains how to set the voltage for fan outputs and proximity sensor input using jumpers (24V, 12V, 5V).

Stallguard Jumper Settings

Details the 'diag' jumpers for enabling StallGuard feature on TMC drivers, connecting diagnostic pins to endstop inputs.

MCU Power Jumper

Explains the MCU power jumper for powering the board via USB-C, facilitating DFU mode firmware updates.

PT100/PT1000 DIP Switches

Covers the configuration of DIP switches for PT100/PT1000 amplifier connections (2, 3, or 4 wire).

Motherboard Physical Specifications

Motherboard Size

Provides the physical dimensions of the Octopus-pro motherboard, including edge-to-edge and mounting hole sizes.

Motherboard Connectors

Illustrates the location and labels of various connectors on the Octopus-pro motherboard.

Motherboard Pins

Offers a snippet of the motherboard pinout diagram, advising to consult the PINS.pdf for full details.

Communicating with the Motherboard

Motherboard Firmware Support

Precautions

A Thank You From BIGTREETECH

Appendices

Common Driver Jumper Tables

Provides tables for common stepper driver jumper settings and microstepping configurations for convenience.

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