Recommended · for beginners

Setting the Current Limit on Pololu Stepper Motor Driver Carriers

Pololu Robotics and Electronics

Why people recommend it

Pololu's own guide to dialling in the A4988 stepper driver current limit with a multimeter and the onboard trimpot.

Watch for: Shown on a bare Pololu carrier rather than a RAMPS board

In their words

I found a video in which they appear to be doing this (not on RAMPs), and the multimeter is set to the third symbol from the top below (DC voltage I'm not stupid enough to say that the voltage range is going to be the same on my multimeter):

leeand00 on electronics.stackexchange.com, Jul 2016. CC BY-SA.

Thank you, it is indeed how I understood the usage of the Pololu driver board (they have a nice explanatory video describing the current limiting process).

Fredovsky on electronics.stackexchange.com, Jul 2017. CC BY-SA.

I found this excellent tutorial video from Pololu: [video] I hope this proves useful to anyone else struggling to fully understand how to set the current limit.

DryRun on electronics.stackexchange.com, Apr 2019. CC BY-SA.

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