BIGTREETECH SKR 3 User Manual

Name: BIGTREETECH SKR 3
Brand: BIGTREETECH
Rating: 5 (1 reviews)

39 pages

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Shenzhen Big Tree Technology CO.,LTD .

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3. Connection description

3.1 USB power supply

After the SKR 3 board has been powered，the Red led D7(Power) to the upper

right of the MCU will light up, indicating power on. When using only USB to

power the boar, Please insert the jumper cap onto the VUSB jumper.

3.2 Stepper driver

3.2.1 STEP/DIR(STANDALONE) mode

i.e：A4988、DRV8825、LV8729、ST820 etc，connect jumpers(MS0-MS2) according to

the microstep chart

Note：RST and SLP must be shorted by jumpers for A4988 or DRV8825.

DRV8825 ELSE

MS2 MS3

MS1 MS2

MS0 MS1

RST/SLP

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