Note：The best way to check you got the correct version B version is MOSFET. If you starts with "HY1904 "then you have a Rev B version board.We ship all the B version without problems, please rest assured to buy.
If you're using a 429 motherboard，before DIY firmware modification, customers need to build an F429 environment on the compilation platform for compilation and use, instead of directly using the previous F407 firmware.
Download Firmware
The DIY environment of each customer is different. In order to prevent the driver from being damaged, it is recommended to delete the comments of the following code when DIYing the firmware. That is:
// #define DISABLE_DRIVER_SAFE_POWER_PROTECT change to
#define DISABLE_DRIVER_SAFE_POWER_PROTECT
Product Specification:
| Size: | 110mm x 85mm. For details, please refer to: BIGTREETECH SKR 2-SIZE.pdf |
| Distance between installation hole centers： | 102mm*76mm |
| Microprocessor: | ARM Cortex-M4 CPU STM32F429VGT6 |
| Input voltage: | DC12V-DC24V |
| Logic voltage: | DC 3.3V |
| Firmware support: | Marlin, RepRap Firmware |
| WIFI interface: | ESP-12S, ESP-07S |
| Fan interfaces: | Three PWM fans, two always-on fans |
| Expansion interfaces: | I2C, Servos, Probe, PS-ON, PWR-DET, Fil-DET, RGB, etc |
| Motor driver: | support 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 |
| Motor driver sockets: | X, Y, Z (double Z axis), E0, E1, five channels (each channel also has a closed loop drive interface) |
| Temperature sensor interfaces: | TH0, TH1, TB. 3 Channels, 100K NTC (thermal resistance) |
| Display interfaces: | Serial touch screen, SPI touch screen, LCD display |
| PC communication interfaces: | USB type B with configurable BAUD |
| Command file format support: | G-code or according to the installed OS |
| Supported kinematics: | XYZ, delta, kossel, Ultimaker, corexy, etc. |
| Recommended software: | Cura, Simplify3D, pronterface, Repetier-host, Makerware |
