BIGTREETECH OCTOPUS User Manual

Produced by BIGTREETECH
Page 14 of 25
Configure the jumpers as below for 5V.
Note: Since the jumpers carry a voltage rail directly from one of the regulators
or from the input, if you short the jumpers in any way other than the shown
connections, you will likely cause damage to the motherboard. When
connecting the fan, make sure that you connect the positive terminal to the
positive output as shown in the images.
4.2 STALLGUARD JUMPER SETTINGS
The “diag” jumpers which are used to connect the diagnostic output pin to the endstop
inputs for drivers which support the stallguard feature (TMC2209/TMC2226) can be found
in the location shown in the image below.
The exact diag numbering can be found by looking at the pins file or the silkscreen beneath
the board.

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