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How to up/down the verf of the motor driver board?
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The X/Y/Z motor driver board,refer to this pic And how to up/down the verf of the motor driver board?

Refer to this pic The blue type of the A4988
Recommend verf of it is:
0.6V~0.9V
You should increase it by tightening the potentiometer(screw) if the verf less than the recommend verf.



The Red type of the A4988 Recommend verf of it is:
0.8V~1.1V
You should increase it by tightening the potentiometer(screw) if the verf less than the recommend verf.

What do you mean with "verf"?

I can't find this word in the dictionary.

[quote=BR365 post_id=84093 time=1525810743 user_id=65265]
What do you mean with "verf"?

I can't find this word in the dictionary.
[/quote]

it means Voltage.

The letters have changed, there should be Vref.
Reference voltage.