BTT EBB SB2240 CAN V1.0

BIGTREETECH EBB SB2240 CAN V1.0 is a Klipper toolhead board for Voron StealthBurner builds. It puts the extruder driver, hotend outputs, fans, probe/sensor wiring, ADXL345 accelerometer, and USB/CAN communication on the toolhead to cut the moving harness down to a cleaner CAN or USB setup.

Why use this board

• StealthBurner-specific layout: the EBB SB2240/2209 CAN V1.0 family is documented by BIGTREETECH for Voron StealthBurner toolhead use.
• TMC2240 version: onboard TMC2240 stepper driver in SPI mode for the extruder motor.
• Cleaner toolhead wiring: supports CAN bus or USB communication instead of running every hotend, fan, probe, and extruder lead back through the cable chain.
• Built-in input-shaper hardware: onboard ADXL345 accelerometer for resonance measurement in Klipper.

Specifications

• Board: BIGTREETECH EBB SB2240 CAN V1.0
• Fitment: Voron StealthBurner toolhead
• Firmware: Klipper only, per BIGTREETECH documentation
• MCU: STM32G0B1CBT6 Arm Cortex-M0+ at 64 MHz
• Stepper driver: onboard TMC2240, SPI mode
• Communication: CAN bus or USB Type-C
• Input power: DC 12–24V, rated 9A
• Hotend heater output: E0, up to 5A
• Fans: two controllable fan outputs plus one 4-wire fan interface; fan output up to 1A each, 1.5A peak
• Sensors / expansion: EndStop, ABL, RGB, PT100/PT1000, USB, CAN, SPI; onboard ADXL345
• Board size: 68.5 × 42.5 mm

Pairs well with

• U2C CAN Interface Board when your controller setup needs a USB-to-CAN bridge.
• BTT 3m CAN Bus Cable for a ready CAN harness run.
• Voron Stealthburner Fastener and LED Kit if you are refreshing the StealthBurner assembly around the electronics.

Gotchas

• This is the SB2240 / TMC2240 version, not the SB2209 / TMC2209 version.
• Use the VUSB jumper only when powering the board over USB for flashing or setup; follow BIGTREETECH wiring docs before applying printer power.
• CAN setup still requires correct firmware, termination, and host configuration. If you want simpler commissioning, check whether USB mode fits your build.

“Perfect, follow directions flashes as intended.”