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BIGTREETECH SKR 3 User Manual

BIGTREETECH SKR 3
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Shenzhen Big Tree Technology CO.,LTD .
BIG TREE TECH
19 / 39
4.3.3 Configure motherboad and serial port
Set MOTHERBOARD to BOARD_BTT_SKR_3
Enable serial ports according to your needs
#define MOTHERBOARD BOARD_BTT_SKR_3
#define SERIAL_PORT 1 (enable TFT serial port)
#define BAUDRATE 115200 （set baudrate to the same as the communication
device）
#define SERIAL_PORT_2 -1 （enable USB serial port）
#define SERIAL_PORT_3 3 （enable WIFI serial port）

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BIGTREETECH SKR 3 Specifications

General IconGeneral
Frequency480 MHz
Driver InterfaceSPI/UART
Logic Voltage3.3V
Heated Bed Output1
Fan Outputs3
Endstop Inputs6
Stepper Motor Connectors6
USB Port1 x USB Type-C
Display SupportYes
BLTouch ConnectorYes
Dimensions110mm x 85mm
Motor Driver SupportTMC5160, TMC2209
Input Voltage12-24V DC
Operating Voltage12-24V DC
Communication InterfaceUSB, CAN, UART
FirmwareMarlin, Klipper
Heater Output2
Fan Connectors3
Heater Connectors3
SD Card SlotYes
Display ConnectorEXP1, EXP2
Thermistor Inputs5

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