1.32-bit 64 MHz ARM Cortex-M0+ series STM32G0B1VET6 MCU.
2.Onboard BOOT button to enable DFU mode to update the bootloader.
3.The thermistor circuit is protected to prevent MCU damage from shorted heated bed and heater cartridge connection.
4.Four 2-pin fan ports, one always-on fan port, and two 4-pin fan ports.
5.All fans can realize VIN, 12V, 5V voltage selection via jumpers, and different voltages can be set separately for different ports.
6.Integrated SPI and UART mode of TMC driver and DIAG pin, easily configurable with jumpers.
7.Supports power loss recovery, filament runout sensor, auto power-off, BLTouch, proximity switch, RGB, etc.
8.Onboard CAN bus port.
9.The SPI expansion port is +3.3V and +5V selectable, which is convenient to connect expansion modules, such as an ADXL345 accelerometer.
10.Onboard UART and I2C expansion output ports.
Dimensions:110 x 85mm
Mounting Size:110 x 85mm
MCUARM Cortex-M0+ STM32G0B1VET6
Input VoltageDC12V-DC24V
Logic VoltageDC 3.3V
Heater ConnectionHeated Bed (HB), Heater Cartridge (HE0, HE1)
HB Port Max. Current10A Continuous, 15A Instantaneous
Heater Cartridge Max. Current8A Continuous, 10A Instantaneous
Fan Port4 x CNC, 1 x Always On, 2 x 4-pin Header
Fan Port Max. Current1A Continuous, 1.5A Instantaneous
Overall Current(Heater Cartridge +Drivers+All Fans)Less than 15A
Expansion PortBLTouch (Servos, Probe), PS-ON, PWR-DET,
Fil-DET, RGB, CAN-FD, SPI, UART, I2C
Stepper Driver ModeSPI, UART, STEP/DIR
Stepper Motor SocketX, Y, Z (Dual Z axes), E0, E1 5 channels in total
Thermistor5 x NTC Ports, 1 x PT100/PT1000
Display2.4-inch TFT, 3.5-inch TFT, LCD12864 Screen
PC ConnectionType-C
Supported File FormatG-code: Recommended Slicer/ConsoleCura, Simplify3D, Pronterface, Repetier-host, Makerware
Supported FirmwareMarlin, Klipper
Colour:black
Material: PCB+electronic components
Package Contents:
1 x SKRat V1.0 32 Bit Motherboard
Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.