TABLE OF CONTENTS
Table of Contents......................................................................................................................1
Document Change History........................................................................................................2
1Introduction to BIGTREETECH Octopus-PRO V1.0.........................................................3
1.1 Octopus-pro motherboard features................................................................................3
1.2 Octopus-pro motherboard parameters...........................................................................6
2Motherboard wiring.............................................................................................................8
2.1 Power wiring....................................................................................................................8
2.2 Automatic power down wiring.........................................................................................9
2.3 BL Touch wiring..............................................................................................................9
2.4 Power loss recovery module wiring..............................................................................10
2.5 RGB LED wiring............................................................................................................11
2.6 Raspberry pi wiring.......................................................................................................11
2.7 Probe port wiring...........................................................................................................12
3Stepper driver operational modes....................................................................................14
3.1 Step/dir mode................................................................................................................14
3.2 UART Mode ..................................................................................................................14
3.3 SPI Mode.......................................................................................................................15
4Motherboard jumper settings...........................................................................................16
4.1 Motor power selection jumpers ....................................................................................16
4.2 Fan and proximity switch voltage settings ...................................................................16
4.3 Stallguard jumper settings............................................................................................18
4.4 MCU power jumper.......................................................................................................18
4.5 PT100/PT1000 DIP Switches.......................................................................................19
5Motherboard physical specifications................................................................................21
5.1 Motherboard size..........................................................................................................21
5.2 Motherboard connectors...............................................................................................21
5.3 Motherboard pins..........................................................................................................22
6Communicating with the motherboard.............................................................................23
7Motherboard firmware support.........................................................................................24
8Precautions.......................................................................................................................26
9A thank you from bigtreetech...........................................................................................27
Appendices..............................................................................................................................28
A1. Common driver jumper tables......................................................................................28
