# PERT Moved Post

**URL:** <https://forum.arduino.cc/t/pert-moved-post/1347467>\
**Category:** Website and Forum\
**Created:** [January 27, 2025, 9:44am UTC](https://forum.arduino.cc/t/pert-moved-post/1347467 "2025-01-27T09:44:35Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![pert](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/pert/32/217111_2.png) [@pert](https://forum.arduino.cc/u/pert)\
**Post date:** [January 27, 2025, 9:50am UTC](https://forum.arduino.cc/t/pert-moved-post/1347467/3 "2025-01-27T09:50:53Z")

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Here is the topic:

> [@Creating The BMW Sculpture](https://forum.arduino.cc/t/creating-the-bmw-sculpture/615360):
>
> Hi all, I need to control 30 stepper motors (28BYJ-48) - (5V) . Each motor has to be controlled individually. How do I do this ? With a port expander ? Could someone pls tell me which port expander is needed to use with Mega. Thanks.

> [@ba47](#):
>
> I go to the end of the old post but don't see any replies.

Look again. You did indeed receive a new reply:

> [@Creating The BMW Sculpture](https://forum.arduino.cc/t/creating-the-bmw-sculpture/615360/314):
>
> I think the difference in cost between DC motor and stepper is marginal, when you add in the driver. Additionally if using an encoder, that requires more CPU. I think unless you are in the business of making 1000's and could afford to design (or order) a custom IC, steppers are probably still better for this application. Also, I would not limit the design to 8-bit AVR, many 32 bits are faster and cheaper, although of course one has to leave the warm environment of the AVR ecosystem.

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