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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
18 / 39
4. Marlin
4.1 install compiling environment
https://github.com/bigtreetech/Document/blob/master/How%20to%20install%20VScode%2BPlatformio.md
https://marlinfw.org/docs/basics/install_platformio_vscode.html
Refer to the link above for tutorial on installing VSCode and PlatformIO plugin
4.2 Download Marlin firmware
1. Download the newest bugfix version of Marlin from official website
https://github.com/MarlinFirmware/Marlin/tree/bugfix-2.0.x
2. Download Pre-configured firmware from our GitHub page
https://github.com/bigtreetech/SKR-3
4.3 Configure firmware
4.3.1 Open Marlin project
You can open Marlin in VS Code in one of several ways:
Drag the downloaded Marlin Firmware folder onto the VScode application icon
Use the Open… command in the VSCode File menu
Open the PIO Home tab and click the Open Project” button
4.3.2 Compiling environment
Open platformio.ini file and change default_envs to STM32H743Vx_btt

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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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