Bigtreetech SKRat V1.0 control board 32bit 64MHz

Bigtreetech SKRat V1.0 control board 32bit 64MHz

Bigtreetech SKRat V1.0 control board 32bit 64MHz

• BIGTREETECH SKRat V1.0 is a high-performance 32-bit control board built for both 3D printers and CNC-style motion projects.
• Designed for stable multi-axis control and clean expansion, it uses an ARM Cortex‑M0+ STM32G0B1VET6 (64MHz) MCU for responsive processing and smoother motion control.
• For builders in India, the SKRat V1.0 is especially attractive for Klipper systems with RatOS 2.0 support, while still supporting Marlin for more traditional firmware workflows.
• A major strength of the SKRat V1.0 control board is driver and expansion flexibility. It supports multiple stepper driver modes—SPI, UART, and STEP/DIR—and supports TMC driver features and DIAG pin configuration via jumpers.
• 5 motor channels (X, Y, Z with dual Z, E0, E1), it’s suitable for dual-Z printers, IDEX-style planning, or setups needing extra extruder control. The board also provides strong heater and fan outputs for reliable thermal management, with dedicated ports for a heated bed and multiple hotend heaters.

Specifications

• Model: BIGTREETECH SKRat V1.0
• Mounting size: 110 × 85 mm
• MCU: ARM Cortex‑M0+ STM32G0B1VET6
• Frequency: 64 MHz
• Input voltage: DC 12V–24V
• Logic voltage: 3.3V
• Heater connections: HB, HE0/HE1
• HB port: 10A continuous / 15A instantaneous
• Heater cartridge: 8A continuous / 10A instantaneous
• Fan ports: 4× CNC, 1× always‑on, 2× 4‑pin headers
• Fan current: 1A continuous / 1.5A instantaneous
• Overall current limit: (heaters + drivers + fans) < 15A
• Expansion ports: BLTouch, PS‑ON, PWR‑DET, Fil‑DET, RGB, CAN‑FD, SPI, UART, I2C
• Stepper driver modes: SPI / UART / STEP‑DIR
• Motor sockets: X, Y, Z (dual Z), E0, E1 (5 total)
• Thermistor inputs: 5× NTC, 1× PT100/PT1000
• PC connection: USB Type‑C
• Supported file format: G‑code

Features

• 32-bit 64MHz MCU for responsive control
• Flexible driver support: SPI/UART/STEP‑DIR with DIAG via jumpers
• Rich expansion: CAN‑FD, BLTouch, runout, PS‑ON, RGB, I2C/SPI/UART
• Advanced temperature sensing with PT100/PT1000 support
• USB‑C connection and broad display compatibility
• Per-port voltage selection

Applications 

• Klipper RatOS printer builds needing modern expansion
• Marlin printer upgrades requiring better connectivity
• CNC and motion projects needing stable multi-axis control
• Add-ons: BLTouch, runout, power detection, RGB, and more

Package Include

• 1 piece of Bigtreetech Skrat V1.0.