BTT SKR 3 Motherboard

BIGTREETECH SKR 3 is the successor to the SKR 2 and has many new features. This versatile 32-bit motherboard with a powerful 480 MHz ARM Cortex-M7 is suitable for most 3D printers and offers plenty of interfaces and upgrade options compared to most built-in motherboards.

The motherboard is compatible with the open-source software Klipper and Marlin.

480MHz ARM Cortex-M7

The BIGTREETECH SKR 3 uses a 32-bit ARM Cortex-M7 STM32H743VIT6 series chip with a core frequency of 480 MHz, which provides enough power to handle even the most demanding user interfaces while ensuring smooth printing.

Now, all boards are offered with the ARM Cortex-M7 STM32H723VGT6 microprocessor.

DIY friendly

• BOOT0 facilitates DFU mode for firmware flashing.
• The improved thermistor now requires no external module for P1000.
• The universal modular WiFi port allows for the use of RRF firmware.

» MANUFACTURER'S MANUAL AND FIRMWARE «

Specifications of the Bigtreetech SKR 3 32bit mainboard

• Power supply voltage: 12 V to 24 V DC
• Logic voltage: 3.3V
• Microcontroller: STM32H723VGT6 (originally STM32H743VIT6)
• Core: ARM Cortex-M7
• Clock frequency: 550 MHz (originally 480 MHz)
• Firmware: Marlin, Klipper
• WiFi interface: ESP-12s, ESP-07s, ESP32
• Motor driver interface: X, Y, Z (dual Z axis), E0, E1, five-way
• Heating interfaces: hotend (HB), heating element (E0, E1)
• Expansion interfaces: Servos, Probe, PS-ON, PWR-DET, Fil-DET, CAN FD
• Controller operating mode: SPI, UART, STEP/DIR
• Communication: USB Type-B socket, microSD card reader
• Display: serial touch screen, SPI touch screen, LCD display
• File format: G-code
• Recommended software: Cura, Simplify3D, pronterface, Repetier-host, Makeware