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3D Printer Controller Board 32 Bit with TMC2209 - SKR E3 V2.0

BIGTREETECH SKR-E3-V2.0 is a customized motherboard for   Ender 3   printers, which is a perfect replacement for the original Ender3 printer motherboard....
Company: BIQU
Part Number: ZZB000412
Made in: China
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Without VAT 48.31

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BIGTREETECH SKR-E3-V2.0 is a customized motherboard for Ender 3 printers, which is a perfect replacement for the original Ender3 printer motherboard. Support 2.8-inch, 3.5-inch color touch screen and Ender3 printer original LCD12864 screen. lntegration of TMC2209 UART mode makes the debugging of the motherboard and driver simple and integrated. Equipped with highly modular open source firmware Marlin2.0, support BLTouch, stall detection, shutdown and other functions.

The SKR mini E3 is a plug and play 32 bit mainboard for the Creality Ender 3, Ender 5 and CR-10. It is very popular because it is affordable and capable. In this third iteration, many of the bugs have been ironed out and a strong focus on reliability has been added.

Motherboard features: (mainly introduces upgrades based on SKR E3 V1.2)

  • Use MP1584EN power chip, support 12-24V power input, the maximum output current can reach 2.5A
  • The hot bed MOS tube uses WSK220N04, low on-resistance, larger heat dissipation area, and reduce heat generation
  • Onboard Sensorless homing function, which can be used by plugging in the jump cap
  • Optimize the PCB board and frame to avoid the phenomenon of screw hole gap and screws hitting components
  • Support BLtouch, filament detection, BTT UPS 24V V1.0, BTT Relay V1.2, etc
  • Onboard EEPROM: AT24C32
  • Add parallel double Z-axis interface
  • Increase the board layer: 4 layer board
  • Increase the heat dissipation area of the back driver and strengthen the heat dissipation capacity 
  • Two CNC fan interfaces
  • Increase the distance between the driving chip and the components to avoid the trouble caused by the heat sink
  • Add protection device to the thermistor interface
  • 5V power supply with BLtouch, TFT and RGB interfaces is optional
  • The driver shares a physical UART port, which saves IO and enhances stability



  • 1x Motherboard SKR E3 V1.2
  • 1x USB cable A to B
  • 1x Micro SD card
  • 4x Small Heat Sinks
  • 5x Jumper Pins



  • This product is a motherboard specially designed for Ender3 printers. For use on other printers, please refer to the corresponding electrical parameters of Ender3 (such as hot bed power,heating rod power, etc.), must not exceed the Ender3 machine electrical.
  • The LCD screen only supports the LCD12864 screen of CR10_STOCKDISPLAY interface.
  • On initial use, the SD card must have a firmware.bin file installed on it prior to powering up. This will install firmware onto the board and allow your computer to recognize it as a USB device.
  • Included on-board stepper drivers TMC2209.


  • Material: 4-layer PCB
  • MPU: ARM Cortex-M3 CPU
  • Main Control Chip: LPC1768
  • Input Voltage: DC12V-DC24V
  • Logic Voltage: 3.3V
  • Current: 5A-15A
  • Support Display:  
    • 2.4" TFT
    • 2.8" TFT
    • 3.5" TFT
    • Ender3 original LCD12864
  • Removable Fuses
  • Motor Driver: Integrated TMC2209-UART
  • Motor Drive Interface: XM, YM, ZAM, ZBM, EM, 5 channel
  • Support file format: G-code
  • Temperature Sensor Interface:
    • TH0
    • THB
    • 2 channel 100K NTC (thermal resistance)
  • Dimensions: 100x70.25mm
  • Compitable: Ender3, Ender5, CR-10 Printer



Motherboard indicator description

After the motherboard is powered on: 

  • 3.3V red light is the power indicator: The red light is on, indicating that the power supply is normal;
  • Status blue light is the status indicator: It flashes when updating the firmware, and closes when the update is complete.

Motherboard and PC communication

The motherboard communicates with the PC (Windows system) via the [USB] interface, and the driver needs to be installed before communication. Can be used normally.

Driver acquisition method: URL download file named: mapleDrv file to install...

Motherboard firmware description

The factory-installed motherboard will be equipped with firmware for testing (Ender3 models), which can be used directly or as needed.

  • How to get the motherboard firmware
  • Log in to the original URL to download:

Motherboard firmware update method

  • Copy the firmware.bin file to the SD card root directory in the compiled firmware package.
  • Insert the SD card into the SD card slot of the motherboard, power it on again or press the reset button. After about 10 seconds, the update can be completed.

Note: The file name cannot be changed. firmware.bin must be lowercase!



SKR MINI E3 V2.0 was designed by BIGTREETECH. We are committed to easy printing, easy life. SKR MINI E3 V2.0 upgrade on the base of SKR MINI E3 V1.2. It is capable with ender3, ender3 pro, ender5 and CR-10.