BTT EBB36 CAN bus Klipper Expansion PCB with MAX31865


Sale price$34.99

Customer Reviews

Based on 7 reviews
Great toolhead board

I am using this to simplify tool head wiring for a tool changing printer. So far, this board is working great with klipper over CAN bus directly hooked up to the octopus, though I have heard that there may be some slowdown. This arrived with all the needed jumpers and connectors to redo the cabling.

Pete T
great for mini stealthburner

Mounted this to the back of my mini SB / Sherpa setup. Works great and way less cables going to the toolhead.

great board

used this on my v0. easy to mount and much easier to run one small cable than a full bundle


Please read and note the disclaimer provided by BTT when using the CAN Bus before purchase and installation. Here. Want to learn a little more about CANbus? Check out our YouTube introduction to CAN.


  • Version V1.2
  • MCU: ARM Cortex-M0+ STM32G0B1CBT6 64MHz with 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

Additional details can be found on GitHub.

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