BIGTREETECH SKR 3 User Manual

Shenzhen Big Tree Technology CO.,LTD .
BIG TREE TECH
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3.5 100K NTC or PT1000 setting
When using 100K NTC no jumpers need to be connected，the pull up resistance of
TH0 & TH1 is 4.7K. When using PT1000 the jumpers indicated in the picture below
needs to be connected, the pull up resistance of TH0 & TH1 is changed to 1K.
3.6 BLTouch wiring
Probe(PC13)
GND
Servos(PE5)
5V
GND

BIGTREETECH SKR 3 Specifications

General

Frequency	480 MHz
Driver Interface	SPI/UART
Logic Voltage	3.3V
Heated Bed Output	1
Fan Outputs	3
Endstop Inputs	6
Stepper Motor Connectors	6
USB Port	1 x USB Type-C
Display Support	Yes
BLTouch Connector	Yes
Dimensions	110mm x 85mm
Motor Driver Support	TMC5160, TMC2209
Input Voltage	12-24V DC
Operating Voltage	12-24V DC
Communication Interface	USB, CAN, UART
Firmware	Marlin, Klipper
Heater Output	2
Fan Connectors	3
Heater Connectors	3
SD Card Slot	Yes
Display Connector	EXP1, EXP2
Thermistor Inputs	5