BIGTREETECH SKR MINI E3 V3.0 User Manual

Motherboard LED meanings
Parameters
Product size:
103.75*70.25mm
Mounting size:
Please refer to BTT SKR MINI E3 V3.0-SIZE.pdf
for more
Board layer:
4
MCU:
ARM Cortex-M0+ STM32G0B1RET6
Power input:
DC 12/24V
Logic voltage:
3.3V
Motor driver:
UART mode of on-board TMC2209
Interfaces of motor driver:
XM, YM, ZAM, ZBM, EM
Interface of temperature sensor:
TH0, THB, 2-way 100K NTC (RTD)
Display screen:
2.4-inch TFT, 3.5-inch TFT, Ender3 original
LCD12864 screen, etc.
PC communication interface:
USB Micro B type, easy to plug,
communication baud rate 115200
Recommended software:
Cura, Simplify3D, Pronterface, Repetier-host, Makerware
File format:
G-code
Power LED = Red. Solid on = Normal power supply
Status LED = Red. Blinking during a firmware update. Controlled by
firmware otherwise
When the motherboard is powered on:

BIGTREETECH SKR MINI E3 V3.0 Specifications

General

Main Control Chip	STM32F103RCT6
Microcontroller	STM32F103RCT6
Connectivity	USB, SD Card
Heated Bed Output	1
Thermistor Inputs	3
Architecture	32-bit
Logic Voltage	3.3V
Motor Driver Interface	UART
Temperature Sensor Interface	Thermistor
PC Communication Interface	USB
Supported File Format	G-code
Mounting Hole Size	M3
Number of Drivers	4
Processor	ARM Cortex-M3
Step Motor Drivers	TMC2209
Input Voltage	12V-24V
Firmware	Marlin
Endstop Inputs	6
Display	LCD12864
Automatic Bed Leveling Sensor	Supported
Motor Output Current	Up to 1.2A per motor
Fan Output Current	1A max
Fan Ports	3 (1x CNC fan, 2x normal fans)