BIGTREETECH SKR Mini E3 V3.0

The BTT SKR MINI E3 V3.0 is a motherboard designed primarily for the Creality Ender 3 as a perfect replacement for the original motherboard.

Features:

• Redesigned industrial motherboard design
• Uses 32-bit STM32G0B1RET6/STM32G0B1RET6 ARM Cortex M0 series processor with 512Kb of memory
• Upgraded heatsink significantly improves heat dissipation
• Thermistor inputs are short-circuit protected
• PWM controlled third cooling fan output added
• Addition of MicroUSB interface instead of MiniUSB
• Added +3.3V power supply for SPI output header

Improvements over V2.0

• G0 series MCU - STM32G0B1RET6
• Heat sink design upgrades, increased heat dissipation area, significantly improved heat dissipation performance
• Additional PWM controlled fan output added
• Improved thermistor interface protection circuit to prevent the main control chip from burning

Compatibility

• Creality 3D printer models Ender 3, Ender 3 Pro, Ender 5, Ender 5 plus, CR-10, etc.
• Marlin, Klipper firmware

Features

• Size: 103.75 x 70.25 mm
• Microprocessor: ARM 32-bit Cortex-M0 STM32G0B1RET or STM32G0B0RET
• Input Voltage: 12V/24V
• Voltage for logic circuits: 3.3V
• Supported driver modes: UART
• Firmware support: Marlin, Klipper
• Number of motor drivers: 4+1
• Motor Drivers: TMC2209 UART
• Number of PCB layers: 4
• Interfaces for temperature sensors: 2
• Number of connectable heaters: 2
• Number of PWM controlled fans: 3
• USB: Micro Type-B (115200 baud communication with PC)
• Display: 2.4″ TFT, 3.5″ TFT, Ender 3 LCD 12864 etc.
• Filament Sensor, Bl-Touch, Auto Shutdown, Shutdown Recovery 

Documentation

• BIGTREETECH SKR MINI E3 V3.0