BTT SKR MINI E3 V3.0 is a custom motherboard for Ender-3 printer, developed by the 3D printing team at Shenzhen BIGTREE Technology Co., LTD.
and directly replaces the motherboard of the original Ender-3 printer.

Compatible with the following 3d printers: Ender-3, Ender-3 Pro, Ender-5 and CR-10 (NOT CR-10S), Voron 0, Voron 0.1


  • Uses the latest G0 series MCU4*
  • Up to 5 stepper motors can be connected
  • On-board sensorless homing
  • Silent TMC 2209 Stepper Drivers with Large Heatsink
  • Supports BL Touch, filament runout sensor
  • Auto Power Down capable (separate relay required)
  • Power Loss Recover Feature (separate UPS module required)
  • Connection option for WS2812 LEDs
  • Replaceable fuse
  • Extended protection circuit for thermistors
  • Supports BigTreeTech TFT displays as well as LCD12684, LCD2004
  • High performance MOSFET
  • Dimensions: 100.75x70.25mm


  • 12V / 24V input voltage
  • 4 on-board stepper drivers (UART)
  • 5 stepper motors can be connected (dual Z axis)
  • 1x Micro USB port
  • Micro SD card reader
  • Connection option for WS2812 LED
  • 1 connector for heating cartridges
  • 2 temperature sensor connections
  • 3 connections for 5V fan
  • 1 connection for BL-Touch sensor
  • 3 connections for limit switches
  • 1 filament runout interfaces

More information, firmware and instructions are available here

*The SKR MINI E3 V3.0 with have either STM32G0B1RET6 or STM32G0B0RET6, either processor will use the same firmware from BIGTREETECH.

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