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lgleasain
mangini
The Raspberry PI hookup diagram for the APA102 was showing the wires being hooked up to the DO and CO (the O standing for output) connectors instead of the DI and CI ones (the I standing for Input). This confused a number of students in a workshop we held who followed the diagram hooking up to the O connectors and as a result has a strip that didn't work until they used the ones marked as I.