Description
BIGTREETECH SKR 3 EZ is a successor to the motherboards of the SKR 1.4 Turbo and SKR 2 series and has many new functions. This versatile 32-bit mainboard with a powerful 480Mhz ARM-Cortex-M7 STM32H743VI CPU is suitable for most 3D printers and offers many interfaces and upgrade options compared to most built-in motherboards.
The mainboard is compatible with Marlin, Klipper and RepRap open-source software.
Features:
- 32-bit ARM Cortex-M7 MCU with 480MHz
- 5 stepper driver slots, Standard (TMC) and EZ compatible
- Up to 6 stepper motors can be connected.
- WIFI interface connection
- Thermal runaway protection circuit
- Extended protection circuit for thermistors
- Supports BigTreeTech TFT displays as well as LCD12684, LCD2004
- Connectors for PWM fans
- Interface for closed loop stepper motor
- High performance MOSFET
- Supports BL Touch, filament runout sensor
- Auto power down enabled (separate relay required)
- Power Loss Recover Feature (separate UPS module required)
- Dimensions: 109.7x98mm
- Hole spacing: 102x76mm
Connections:
- 12V / 24V input voltage
- 5 stepper driver slots (SPI, UART, STEP / DIR)
- 6 stepper motors can be connected (dual Z axis)
- 1 Micro SD card reader
- 1 USB socket
- 1 USB port
- 1 WIFI interface for ESP-12S, ESP-07, ESP32 module
- 2 connections for heating cartridges
- 1 connection for heating bed
- 3 temperature sensor connections (1 100K NTC, 2 100K NTC and PT1000 Optional)
- 3 connections for one fan
- 3 connections for PWM fans
- 1 connection option for BL-Touch sensor
- 3 connections for limit switches
- 1 filament runout connection option
- Supports 12V-48V (48V only supported with 5160 Pro Stepper Drivers)
More information, firmware and instructions are available here