SKR Pro V1.2 User Manual Shenzhen Biqu Technology Co., Ltd.
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Note: the high level is connected to the above two row
needles, and the low level is connected to the following two
rows of needles.
2、A4988 and 8825 driver instructions
If the drive is using A4988 or 8825, it is necessary to short
the two pins in the purple box with the jumper cap (as shown).
If it is not A4988 or 8825, the jumper cap in the box needs to
be pulled out.
3、UART mode
When using UART mode, you need to short the needle in
the red box with a jumper cap.
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