Features

• Compact size: 155.3mm x 76.5mm
• Based on STM32F446 180Mhz，all IOs can withstand 5V voltage
• 8 TMC stepper drivers support, with Uart&SPI support
• Improved TMC jumper settings again，simpler and easier
• 28V input max，12V@5A DC-DC，5V@8A DC-DC (Especially for Raspberry Pi)，3.3V@0.8A LDO
• Two car fuses for hot bed input and main power input
• Limit switch socket 24V/5V/3.3V optional, ready for more other equipment, such as -inductive sensor, BL-Touch
• XH2.54 connectors
• 10x PWM capable power mosfet outputs (1 for HotBed, 3 for Heat-End, 3 for fans, 3 for RGB LED strip)
• 3pin temperature header, you can use thermistor or thermocouple (requires AD597 module)
• Up to 8 ways PWM fans (only use 1 extrueder and no 12V/24V RGB used )，2 ways RGB led(12V & 24V optional) ，1 way 5V-RGB led (NEO-PIXEL/WS2812)
• RepRapDiscount SmartController compatible pin header on board
• UART1-Raspberry Pi pin header (including 5V@8A power supply)
• 2X4 PinHeader Out for SD Card moudle
• Onboard micro-SD card
• Type-C and Type-B USB connector optional
• EXP1 & EXP2 have more multiplexing functions, such as USART, I2C, CAN
• SD card & USB upload support
• A 4.7kOhm 0.1% temperature sensor pull up resistor is used, PT1000 can be connected directly. For PT100, an amplifier board must be used.