BigTreeTech SKR 1.4 32 bit Mainboard

Description

Product Introduction
BIGTREETECH SKR V1.4 motherboard is a 32-bit 3D printer
motherboard optimized and upgraded by the team at
Shenzhen Big Tree Technology CO., LTD. This version is a big upgrade from the V1.3
version, suitable for most 3D printers, we also use them on our CNC.

NOTE: No micro SD is included with this board, you need to supply your own.

SKR Motherboard Features:：
1）Using 32-bit main frequency 100MHz ARM level Cortex-M3 series LPC1768
main control chip, the performance has been greatly improved;
2）Equipped with highly modular and open source firmware Marlin2.0, which is
convenient for users to DIY and secondary development;
3）Using dedicated power chip M6130, support 12-24V power input;
4）Support 2.4, 2.8, 3.5 inch color touch screen, support LCD2004 screen,
LCD12864 screen；
5）Upgrade and configure the firmware through SD card, which is simple,
convenient and efficient;
6）The SPI and UART working mode driven by the TMC driver, also having the
DIAG pin, which eliminates complex wiring process and can be used by simple
unplugging jumper cap;
7）Support Resume Printing While Power Off, Filament Break Detection,
Automatic Shutdown After Printing and so on；
8）High performance MOSFET tube, better heat dissipation effect;
9）Using removable fuse makes the replacement process easier;
10）Reserved extended port SERVOS and Probe to support BL Touch;；
11）Support RGB Neopixel light bar；
12）Use the power selection design to separate the USB power supply from the
switch power supply, effectively avoiding the situation that the USB port of the
computer is burnt out due to short circuit;
13）The special function interface uses the row needle with conspicuous color,
which greatly reduces the error rate of wiring.
14）I2C, SPI and WIFI interfaces are reserved for convenience of DIY;
15）Closed-loop drive interface is reserved to reduce the trouble of plug-in
switching module；
16）Double z-axis interface, eliminating the trouble of external drive expansion
module;
17）The thermistor interface is protected by a bile capacitor pressurized resistor
to enhance the resistance of the interface；
18）More fan interfaces: 1 way CNC fan, 3 way normally open fan.

SKR Motherboard Parameters:：
Appearance size: 110*85mm
Mounting size: 102*76mm
Microprocessor: ARM Cortex-M3 CPU
Input voltage: DC12V-DC24V 5A-15A
Logic voltage：DC 3.3V
WIFI module：ESP-01S
Motor driver: Support TMC5161、TMC5160、TMC2209、TMC2225、TMC2208、
TMC2130、ST820、LV8729、DRV8825、A4988 etc., independent external motor
drive.
Driver working mode support: SPI、UART、STEP/DIR
Motor driver interface：X、Y、Z、E0、E1，5 way（Each has a closed loop drive
interface) up to 256 subdivisions
Temperature sensor interface: TH0, TH1, TB, 3 channel 100K NTC Temperature
sensor interface: TH0, TH1, TB, 3 channel 100K NTC (thermal resistance)
Display：2.4、2.8、3.5 inch TFT（Support dual mode screen）、LCD2004、
LCD12864
PC communication interface: Square USB, easy to plug, communication baud
rate of 115200
Expand the interface function support: Resume Printing While Power Off,
Filament Break Detection, Automatic Shutdown After Printing, Automatic leveling,
BL Touch
Support file format: G-code
Supported machine architecture: XYZ、delta、kossel、Ultimaker、corexy
Recommended software: Cura、Simplify3D、pronterface、Repetier-host、
Makerware.