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Re^12: Controlling USB on Raspberry Piby stevieb (Canon) |
on Dec 13, 2020 at 16:51 UTC ( [id://11125120]=note: print w/replies, xml ) | Need Help?? |
"The relay is designed such that it switches ON when the GPIO pin is taken low." For your information, when a device is on/enabled when the GPIO goes LOW, that's called "Active Low", so the relay is known to be an "active low relay". "Active High" is exactly the opposite.
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