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BIGTREETECH SKR MINI E3 V3.0 User Manual

BIGTREETECH SKR MINI E3 V3.0
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Instruction
BTT SKR MINI E3 V3.0 is a motherboard designed for Ender3,
which launched by the 3D printing team of Shenzhen Big Tree
Technology Co., Ltd. It is the perfect replacement of the original
motherboard of Ender3.
Features
Redesigned motherboard ID(Industrial Design) make it
good-looking
Adopts STMicroelectronics G0 series MCU STM32G0B1RET6
Upgraded heat sink improves heat dissipation
Thermistor inputs are protected from short circuit to Vin
Added a third PWM controlled cooling fan output
Adopt MicroUSB instead of MiniUSB interface
Added +3.3V power supply for SPI output header

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BIGTREETECH SKR MINI E3 V3.0 Specifications

General IconGeneral
Main Control ChipSTM32F103RCT6
MicrocontrollerSTM32F103RCT6
ConnectivityUSB, SD Card
Heated Bed Output1
Thermistor Inputs3
Architecture32-bit
Logic Voltage3.3V
Motor Driver InterfaceUART
Temperature Sensor InterfaceThermistor
PC Communication InterfaceUSB
Supported File FormatG-code
Mounting Hole SizeM3
Number of Drivers4
ProcessorARM Cortex-M3
Step Motor DriversTMC2209
Input Voltage12V-24V
FirmwareMarlin
Endstop Inputs6
DisplayLCD12864
Automatic Bed Leveling SensorSupported
Motor Output CurrentUp to 1.2A per motor
Fan Output Current1A max
Fan Ports3 (1x CNC fan, 2x normal fans)

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