# Power requirements for controller

**URL:** <https://forum.onefinitycnc.com/t/power-requirements-for-controller/1638>\
**Category:** Controller (Buildbotics) Discussion\
**Created:** [November 14, 2020, 5:04pm UTC](https://forum.onefinitycnc.com/t/power-requirements-for-controller/1638 "2020-11-14T17:04:28Z")\
**Posts on this page:** 1\
**Showing post:** 28

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**Author:** ![WaywardWoodworker](https://avatars.discourse-cdn.com/v4/letter/w/e79b87/32.png) [@WaywardWoodworker](https://forum.onefinitycnc.com/u/WaywardWoodworker)\
**Post date:** [June 1, 2022, 6:51pm UTC](https://forum.onefinitycnc.com/t/power-requirements-for-controller/1638/28 "2022-06-01T18:51:17Z")

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I’d suggest picking up a 32gb micro SD card and flashing it with the Onefinity image then use that if you want to experiment.

> [@How to reflash the operating system on the Onefinity BB controller (Full SD card image)](https://forum.onefinitycnc.com/t/how-to-reflash-the-operating-system-on-the-onefinity-full-sd-card-image/5659):
>
> There are times when you may have a file go corrupt or (advanced) users start poking under the hood and may need to reflash the entire vanilla image to the sd card. This process is essentially reinstalling the Onefinity operating system from scratch. This process is only for advanced users OR if you were directed to this via support. If you are looking to update the firmware from a controller that is working properly, do not use this method, look for the update file in the ‘firmware updates’ s…

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