BIGTREETECH SKR MINI E3 V2.0 32 Bit TMC2209 Motherboard for Ender 3

BTT SKR MINI E3 V2.0 is a customized motherboard for Ender3 printer launched by the 3D printing team of Shenzhen BIGTREE technology co. LTD. which can perfectly replace the motherboard of the original Ender 3 printer. Other printer is may be supported but Bigtreetech doesn't offer pre compiled firmware or documentation. We only have deploy these board on Ender 3 printers for hobby use case, we recommended more powerful boards for other larger printers or for industrial/commercial/print farms we recommended DUET3D Series.

BTT SKR MINI E3 V2.0 Features

• Use MP1584EN power chip, support 12-24V power input, the maximum output current can reach 2.5A
• The hot bed MOS tube uses WSK220N04, low on-resistance, larger heat dissipation area, and reduce heat generation
• Onboard Sensorless homing function, which can be used by plugging in the jump cap
• Optimize the plate and frame to avoid the phenomenon of screw hole gap and screws hitting components
• Support BLtouch, filament detection, power-off resume, automatic shutdown, etc .
• Onboard EEPROM: AT24C32
• Add parallel double Z-axis interface
• Increase the board layer: 4 layer board
• Increase the heat dissipation area of the back driver and strengthen the heat dissipation capacity
• Two CNC fan interfaces
• Increase the distance between the driving chip and the components to avoid the trouble caused by the heat sink
• Add protection device to the thermistor interface
• 5V power supply with BLtouch, TFT and RGB interfaces is optional
• The driver shares a physical UART port, which saves IO and enhances stability

Specifications

• Size: 100.75 * 70.25mm
• PCB Layer: 4 layers
• MCU: ARM Cortex-M3 STM32F103RCT6
• Power input: DC 12 / 24V (24V Recommended) 
• Logic voltage: 3.3V
• Motor driver: UART mode of on board TMC2209;
• Motor drive interface :XM, YM, ZAM, ZBM, EM
• Temperature sensor interface: TH0,THB,2 channels 100K NTC (thermal resistance)
• Supported Display Type: 2.4 inch TFT, 3.5 inch TFT, Ender3 original LCD12864 screen.
• PC communication interface: mini-USB-B type, easy to plug and unplug, communication baud rate 115200
• Support file format: G-code
• Recommended software: Cura, Pursa Slicer