Stepper Motor Driver

Discussion related to "under the hood" OpenMV topics.
lab
Posts: 18
Joined: Wed Mar 21, 2018 9:02 pm

Stepper Motor Driver

Postby lab » Mon May 14, 2018 3:26 pm

We have a stepper motor system that we want to control using OpenMV. The following is the link to our stepper motor driver:

https://www.aliexpress.com/item/HOT-3A- ... 50794.html

We connected this to one stepper motor as well as step, direction and ground to the GPIO's on OpenMV. When we apply 24V to the driver to power the stepper motor, OpenMV disconnects from our computer within a few seconds. Do we need some isolation between the OpenMV board and the driver?
lab
Posts: 18
Joined: Wed Mar 21, 2018 9:02 pm

Re: Stepper Motor Driver

Postby lab » Mon May 14, 2018 3:35 pm

We measured 3- 9 mA of current going from the driver to the OpenMV board.
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kwagyeman
Posts: 2275
Joined: Sun May 24, 2015 2:10 pm

Re: Stepper Motor Driver

Postby kwagyeman » Mon May 14, 2018 3:38 pm

Hi, the product link doesn't go to anything.
Nyamekye,
lab
Posts: 18
Joined: Wed Mar 21, 2018 9:02 pm

Re: Stepper Motor Driver

Postby lab » Mon May 14, 2018 4:57 pm

Actually we figured out that our USB connection was becoming loose as the stepper motor was moving and vibrating. We secured it and now the connection is stable.

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