BIGTREEETECH SKRat V1.0 Control Board

BIGTREETECH SKRat v1.0 is a 3D printer motherboard jointly launched by Shenzhen Big Tree Technology Co., Ltd. and Rat Rig.

Main Features.

• 32-bit, 64 MHz ARM Cortex-M0+ MCU of the STM32G0B1VET6 series.
• Built-in BOOT button to activate DFU mode and update the bootloader.
• The thermistor circuit is protected to prevent damage to the MCU in case of short circuit of the heated plane and cartridge connection ofhotend.
• Four 2-pin fan ports, one always-on fan port, and two 4-pin fan ports. All fans can realize VIN, 12V, 5V voltage selection via jumpers, and different voltages can be set separately for different types of ports.
• Built-in SPI and UART mode for driver TMC and DIAG pin, easily configured with jumpers.
• Supports power loss recovery, filament depletion sensor and auto power off, BLTouch, proximity switch, RGB, etc.
• Non-spring loaded microSD card slot for firmware upgrade and configuration via microSD card easily, conveniently and efficiently.
• Built-in CAN bus port.
• SPI expansion port is selectable at +3.3 V and +5 V to allow connection of expansion modules, such as an ADXL345 accelerometer.
• Built-in UART and I2C expansion ports.

Package contains: 1 x BIGTREETECH SKRat v1.0

Precautions

• The maximum current of the heated plate is 10A; if a high-power heated plate is preferred, use 24V voltage to power the system and use a 24V heated bed.
• To ensure proper operation of the CNC fan port, insert the voltage selection jumper.
• The microSD card slot is not spring loaded; be careful when inserting the microSD card to avoid damaging the slot.