BIGTREETECH SKR 2 - 3D Printer Motherboard

The SKR-2 is an extensive motherboard for your 3D printer, on which you can use Marlin or RepRap Firmware. The board is based on an STM32F and can control up to 6 different stepper motors and two hotends. Furthermore, the board has a large number of extra connections, to connect auto-bed leveling, extra fans or LED strips.

Specifications:

• Supply voltage: 12 - 24V DC
• Signal voltage: 3.3V
• Microcontroller:
  • Chip: STM32F407VGT6 or STM32F429VGT6
  • Flash memory: 1MB
• PC connector: USB-B
• Step motor driver support:
  • Number of driver adapters: 5
  • Connector: Standard stepper motor driver headers (suitable for A4988, TMC2208, etc., among others)
  • Supported modes: SPI, UART, STEP/DIR
  • Motor connectors: JST-XH 4p (6x, ZMA and ZMB share a driver)
• Endstop support: 3 (X, Y, Z)
  • Connector: JST-XH 3p
• Heater cartridge support: 2
  • Voltage: 12 - 24V (same as power supply)
  • Connector: Screw terminal
• Heated bed support:
  • Voltage: 12 - 24V (same as power supply)
  • Maximum power: 240W (@24V), 120W (@12V)
  • Connector: Screw terminal
• Thermistor support: 3 (2 for heater cartridges and 1 for the heated bed)
  • Supported thermistor resistance: 100k NTC
  • Connector: JST-XH 2p
• Fan support: 5 (3 PWM, 2 standard)
  • Connector: JST-XH 2p
• SD card adapter:
  • Format: MicroSD (not included)
• Filament detector support: 2
  • Connector: JST-XH 3p
• Auto-leveling support:
  • BL touch: 1x
  • Connector: JST-XH 3p and JST-XH 2p
• Display support:
  • LCD display connector: Flat cable header 2x5p
  • TFT Display connector: JST-XH 5p
• Pin-out: See images
• Size: See images

Package contents:

• 1x BIGTREETECH SKR 2
• 1x USB-A cable to USB-B (~50cm)
• 1x 2p jumper set
• 1x Rubber Duck

See the following page for more information: BIGTREETECH-SKR-2

See the "Downloads" tab for a user guide.

Note: For use with some displays, the connectors must be rotated 180°.

Check the tab "Downloads" for more information and/or downloads.