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[FAQ]Jeff asked about Relay shield

I looked through the wiki and all of the forum questions, but don't see anywhere that mentions whether the 9 VDC jack is center positive or center negative. Also, what are the dimensions for the plug?


https://www.seeedstudio.com/Relay-shield-p-693.html
Jeff CoppiOct 19,2016 19:53 PMAdd Comment

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