Electrical Specification for Expansion Port

Firmware/software/electronics/mechanics
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whoenig
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Joined: Mon Oct 27, 2014 2:55 am

Electrical Specification for Expansion Port

Post by whoenig » Thu Apr 12, 2018 11:51 pm

Hi,
I looked in the wiki to find the supported voltage range for the various expansion ports (e.g., UART, I2C). I can't find any nominal/maximum ratings specified (see, e.g., https://wiki.bitcraze.io/projects:crazy ... ards:index, https://wiki.bitcraze.io/projects:crazy ... cification).

Specifically, can I use UART2 with 3.3V levels?

Thanks!

arnaud
Bitcraze
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Joined: Tue Feb 06, 2007 12:36 pm

Re: Electrical Specification for Expansion Port

Post by arnaud » Fri Apr 13, 2018 8:48 am

Yes, you can use anything with 3.3V without problem.

This is a good point that we are not specifying it anywhere, where do you think would be the best to document electrical specs (ie. where did you look first : )?

whoenig
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Joined: Mon Oct 27, 2014 2:55 am

Re: Electrical Specification for Expansion Port

Post by whoenig » Fri Apr 13, 2018 6:46 pm

Thanks - that's good to know!

I think it might make sense to add it in this section: https://wiki.bitcraze.io/projects:crazy ... ort_pinout (this is where I looked first).

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