BigTreeTech EBB

This is an instruction to set up the BTT EBB36, EBB42 and EBB SB2209/2240 with Klipper via CANBUS.

This guide is tested with the following boards:

This guide was verified on a Pi running MainsailOS

This guide will not work with the following boards:

These boards have a different MCU.

EBB36 & 42 v1.1 & v1.2

MCU: ARM Cortex-M0+ STM32G0B1CBT6 64MHz whit FDCAN bus
Stepper Dirver: Onboard TMC2209 in UART mode, UART address: 00, Rsense: 0.11R
Onboard Accelerometer Sensor: ADXL345
Onboard Temperature IC: Max31865 Select 2 / 4 lines PT100 / PT1000 by DIP switch (no Max31865 verson have not this feature)
Input Voltage: DC12V-DC24V 6A
Logic Voltage: DC 3.3V
Heating Interface: Hotend (E0), maximum output current: 5A
Fan Interfaces: two CNC fans (FAN0, FAN1)
Maximum Output Current of Fan Interface: 1A, Peak Value 1.5A
Expansion Interfaces: EndStop, I2C, Probe, RGB, PT100/PT1000, USB interface, CAN Interface
Temperature Sensor Interface Optional: 1 Channel 100K NTC or PT1000(TH0), 1 Channel PT100/PT1000
USB Communication Interface: USB-Type-C
DC 5V Maximum Output Current: 1A

Pinout EBB36 v1.1 & v1.

MCU: ARM Cortex-M0+ STM32G0B1CBT6 64MHz whit FDCAN bus
Stepper Dirver:
- TMC2209 Version: Onboard TMC2209 in UART mode, UART address: 00, Rsense: 0.11R
- TMC2240 Version: Onboard TMC2240 in SPI mode
Onboard Accelerometer Sensor: ADXL345
Onboard Temperature IC: Max31865 Select 2 / 4 lines PT100 / PT1000 by DIP switch
Input Voltage: DC12V-DC24V 9A
Logic Voltage: DC 3.3V
Heating Interface: Hotend (E0), maximum output current: 5A
Fan Interfaces:
- 2 x CNC fans (FAN1, FAN2)
- 1 x 4-wire fan (4W_FAN)
Maximum Output Current of Fan Interface: 1A, Peak Value 1.5A
Expansion Interfaces: EndStop, Bltouch, Proximity(NPN & PNP), RGB, PT100/PT1000, USB, CAN, SPI
Temperature Sensor Interface Optional: 1 Channel 100K NTC or PT1000(TH0), 1 Channel PT100/PT1000 (Max31865)
USB Communication Interface: USB-Type-C
DC 5V Maximum Output Current: 1A