1 x Bigtreetech SKR 3 EZ 32bit 480MHz Control Board
1x Usb cable
Using 32-bit ARM Cortex-M7 series STM32H743VI main control chip with a main frequency of 480MHz.
The power chip adopts TPS5450-5A, which supports DC12/24V power input. The output current of the chip is up to 5A, and the peak value can reach 6A, which perfectly supports the power supply of Raspberry Pi.
The numerical control fan realizes 24V, 12V, 5V voltage selection through the external power supply module, eliminating the need for the operation of the customer's external transformer module, thereby reducing the probability of damage to the motherboard.
The thermistor can select the pull-up resistance value through the jumper, and support PT1000 in this way without the need for external modules, which is convenient for customers to use DIY.
Supports functions such as resume printing, Filament Runout Detection, Completed Shutdown, BLTouch, RGB Lights, etc.
WIFI module (ESP-12S, ESP-07, ESP32) general interface.
Two types of CAN interfaces are reserved, USB port and XH2.54 6Pin terminal interface. The USB port is used to select CAN and USB through the double-pole double-throw switch, which is convenient for customers to use other accessories of the CAN interface.
The motor power supply supports up to 48V, and for the larger voltage when using TMC5160 and EZ5160, an isolation chip is used to protect the mainboard from burning IO.
Size: 102mm x 76mm
Microprocessor: ARM Cortex-M7 CPU STM32H743VIT6
Input Voltage: DC12-DC24v
Motor Voltage: DC12-48v
Logic Voltage: DC3.3V
WIFI Interface: ESP-12S, ESP-07S, ESP32
Fan Interfaces: 3 CNC fans, 2 normal fans, optional voltage of the CNC fans.
Expansion Interfaces: Servos, Probe, PS-ON, PWR-DET, Fil-DET, CAN FD
Motor Driver: supports EZ and traditional style TMC5160, TMC2209, TMC2225, TMC2226, TMC2208, TMC2130, ST820, LV8729, DRV8825, A4988, etc., and can be externally connected to a motor drive.
Supported stepper driver interfaces: SPI, UART, STEP/DIR
Temperature sensor interfaces: 1 way 100K NTC, 2 way 100k NTC and PT1000 optional
Display Interfaces: Serial touch screen, SPI touch screen, LCD display
PC communication interfaces: square USB a, easy to plug, communication baud rate 115200
Supported kinematics: XYZ, delta, kossel, Ultimaker, corexy, etc.
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