Is the Power Shield protected against reversed DC supply?

Hardware
1

Does the Power Shield (v2.1) have any protection against the DC source being wired up backwards?

That is, if it accidentally gets -12VDC on the 7-20V external DC supply, what’s likely to happen? (I’m not planning on doing this, but I’m installing in a location where it might happen accidentally. Wondering if I need to worry about that.)

Thanks,
Mike

2

I see a B230 diode introduced at the +V side of the power terminal and should provide the reverse polarity protection. :wink:

https://github.com/spark/shields/blob/master/photon-shields/PDFs/Schematics/power-shield-v210.pdf

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3

Oh, perfect. Thanks for the references.

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