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- h2osteam commented on h2osteam's instructable Electronic Music Box Powered by Arduino (sort of)2 years ago
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Hi JorgeThe colour of the note is only for the IR sensor to detect them. I guess any colour that absorb IR light enough for the circuit to pick up would work, lets say dark blue. As to colour changes tone, it doesn't. Either the machine 'sees' the note or not.