Setting the Current Limit on Pololu Stepper Motor Driver Carriers
Why Electrical Engineering Stack Exchange recommends it
Electronics Stack Exchange users point people to it when they need a clear, hands-on walkthrough of measuring Vref and adjusting the current limit trimpot on Pololu-style stepper drivers.
Recommended by 3 people across 3 different months, 2016 to 2021.
What it is
A Pololu tutorial showing how to set the current limit on its stepper motor driver carriers. It demonstrates the process on a DRV8825 board, using an Arduino-compatible controller, a multimeter and a trimpot, and notes the same steps apply to the A4988, DRV8824 and DRV8834.
What people said
Recommends Fredovsky · 2017-07 · Electrical Engineering Stack Exchange · on “Voltage regulator for Stepper and Microcontroller”
Thank you, it is indeed how I understood the usage of the Pololu driver board (they have a nice explanatory video [this video] describing the current limiting process). Regarding the second part of the question, is it good practice tu put a voltage regulator on a PCB knowing that the power coming from the USB charger should already be regulated to 5V ?
Recommends DryRun · 2019-04 · Electrical Engineering Stack Exchange · on “How to find stepper motor's rated current to set current limit?”
I found this excellent tutorial video from Pololu: [this video] I hope this proves useful to anyone else struggling to fully understand how to set the current limit.
Recommends tlfong01 · 2021-04 · Electrical Engineering Stack Exchange · on “Need design best practice: microcontroller controlled, variable, DC voltage source”
Your Youtube video on how to set current limit is very. I watch it now have more confidence to carry on my microstepping exmperiments. I have also watch EEVblog vido on a newer module Rdien RD6006. Now I know that the SMPS's noise can be as high as 500mVpp. I will be reading EEVblog's follow up video on how to reduce noise, by using "Capacitance Multiplier" (1) Setting the Current Limit on Pololu Stepper Motor Driver Carriers - Pololu 2015apr14, 282,979 views [this video] / to continue, ...
Cites leeand00 · 2016-07 · Electrical Engineering Stack Exchange · on “Is this the correct setting to measure the vref voltage to adjust a trimpot on my A4988 stepper driver?”
I'm trying to adjust the voltage on a trimpot measuring it using a multimeter [LINK] . I found a video [this 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): [LINK] Is this the correct multimeter setting to test this out on a RAMPs 1.4 board? Also, does she have the leads plugged into the correct ports?